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13 dayscrypto: aes - Fix conditions for selecting MAC dependenciesEric Biggers1-2/+2
commit e073f1238ecaea366f53e98724c40b31856da56a upstream. Starting in commit 7137cbf2b5c9 ("crypto: aes - Add cmac, xcbc, and cbcmac algorithms using library"), the aes module (CRYPTO_AES) supports CBC based MACs using the corresponding library functions. To avoid including unneeded functionality, that support honors the existing CRYPTO_CMAC, CRYPTO_XCBC, and CRYPTO_CCM kconfig options. The dependencies are selected if at least one of those is enabled. However, the select statements don't correctly handle the case where CRYPTO_AES=y and (for example) CRYPTO_CMAC=m. In that case the dependencies get selected at level 'm', due to how the kconfig language works. That causes a linker error. Fix this by changing the selection conditions to use '!= n'. A similar issue also exists for CRYPTO_LIB_AES's conditional selection of CRYPTO_LIB_UTILS. The same '!= n' would work, but instead just make CRYPTO_LIB_AES always select CRYPTO_LIB_UTILS. CRYPTO_LIB_UTILS is lightweight, and it's needed by most AES modes and many other things. Fixes: 7137cbf2b5c9 ("crypto: aes - Add cmac, xcbc, and cbcmac algorithms using library") Fixes: 309a7e514da7 ("lib/crypto: aes: Add support for CBC-based MACs") Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260709022954.45113-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 dayscrypto: rng - Free default RNG on module exitHerbert Xu1-0/+11
[ Upstream commit 606ba888b98e0d26a2c4e5c8dc0542e3ad8f0f3a ] When the rng module is removed the default RNG will be leaked. Call crypto_del_default_rng to free it if possible. Fixes: 7cecadb7cca8 ("crypto: rng - Do not free default RNG when it becomes unused") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
13 dayscrypto: af_alg - Cap AEAD AD length to 0x80000000Herbert Xu1-0/+2
[ Upstream commit e4c06479d7059888adf2f22bc1ebcf053bf691a2 ] In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data length to 0x80000000. Reported-by: Yiming Qian <yimingqian591@gmail.com> Fixes: 400c40cf78da ("crypto: algif - add AEAD support") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
13 dayscrypto: asymmetric_keys - fix OOB read in pefile_digest_pe_contentsWeiming Shi1-0/+2
[ Upstream commit f7dd32c5179d7755de18e21d5674b08f9e5cb180 ] pefile_digest_pe_contents() computes the trailing-data hash length as pelen - (hashed_bytes + certs_size). A crafted PE can make the addition exceed pelen, causing the unsigned subtraction to underflow to ~4 GiB. This is passed to crypto_shash_update() which reads out of bounds and panics on unmapped vmalloc guard pages. BUG: unable to handle page fault for address: ffffc900038d8000 Oops: Oops: 0000 [#1] SMP KASAN NOPTI RIP: 0010:sha256_blocks_generic (lib/crypto/sha256.c:152) Call Trace: <TASK> __sha256_update (lib/crypto/sha256.c:208) crypto_sha256_update (crypto/sha256.c:142) verify_pefile_signature (crypto/asymmetric_keys/verify_pefile.c:436) kexec_kernel_verify_pe_sig (kernel/kexec_file.c:151) __do_sys_kexec_file_load (kernel/kexec_file.c:406) do_syscall_64 (arch/x86/entry/syscall_64.c:94) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) </TASK> Kernel panic - not syncing: Fatal exception Validate that the addition does not overflow and the result does not exceed pelen before the subtraction. Return -ELIBBAD on failure. Fixes: af316fc442ef ("pefile: Digest the PE binary and compare to the PKCS#7 data") Reported-by: Xiang Mei <xmei5@asu.edu> Signed-off-by: Weiming Shi <bestswngs@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
13 dayscrypto: ecrdsa - fix unknown OID check in ecrdsa_param_curveThorsten Blum1-1/+1
[ Upstream commit 2d7b2cfc59998baf5e8622a24dc28f69a5212e06 ] The ->curve_oid check in ecrdsa_param_curve() rejects the valid enum value 0 (OID_id_dsa_with_sha1), but look_up_OID() returns OID__NR on lookup failure. Compare ->curve_oid with OID__NR instead to ensure that only unknown OIDs return -EINVAL. Fixes: 0d7a78643f69 ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm") Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Reviewed-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Vitaly Chikunov <vt@altlinux.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
13 dayscrypto: algif_skcipher - force synchronous processingMuhammet Kaan KILINÇ1-51/+24
The AIO/async path in skcipher_recvmsg() passes the socket-wide ctx->iv directly into the skcipher request. After io_submit() the socket lock is dropped and the request is processed asynchronously by a worker (e.g. cryptd), which dereferences ctx->iv only later. A concurrent sendmsg(ALG_SET_IV) on the same socket can overwrite ctx->iv inside this window, so the in-flight request runs under an attacker-controlled IV. For CTR and other stream modes this causes IV/keystream reuse and allows an unprivileged user to recover the plaintext of a concurrent operation. Snapshotting ctx->iv into per-request storage for the async path is not sufficient here. For ciphers with statesize == 0 - which includes cbc and ctr - skcipher_prepare_alg() installs skcipher_noimport()/ skcipher_noexport(), so ctx->state carries nothing and the MSG_MORE inter-chunk IV chaining is carried solely by the in-place req->iv writeback. A snapshot redirects that writeback into per-request memory that af_alg_free_resources() releases on completion, so AIO + MSG_MORE with cbc/ctr would silently produce wrong output. Writing the IV back from the completion callback instead is not possible either: that would require lock_sock() there, but the callback can run in softirq/atomic context, so it must not sleep. Make the operation synchronous instead. ctx->iv is then only ever dereferenced under the socket lock held by recvmsg(), which removes the race, and the req->iv writeback lands in ctx->iv as before, which keeps MSG_MORE chaining intact for statesize == 0 ciphers. The ctx->state import/export path is unchanged for ciphers that do have state. This is equivalent to the upstream resolution: commit fcc77d33a34c ("net: Remove support for AIO on sockets") removed the AIO socket path across net/ entirely, producing the same end state for this file - algif_skcipher never processes an AIO request asynchronously. After this patch, _skcipher_recvmsg() matches mainline's crypto/algif_skcipher.c as it stands today, including the same now-dead -EIOCBQUEUED check. This patch deviates from that commit deliberately: rather than removing AIO socket support tree-wide, which would be far too invasive for stable, it removes only the AIO branch in crypto/algif_skcipher.c. io_submit() now completes synchronously, which is valid for the AIO interface; AF_ALG async is rarely used in practice. The -EIOCBQUEUED check in skcipher_recvmsg() is now dead but harmless, and is left alone to keep the fix minimal. Fixes: e870456d8e7c ("crypto: algif_skcipher - overhaul memory management") Cc: <stable@vger.kernel.org> Reported-by: Muhammet Kaan KILINÇ <muhammetkaankilinc@gmail.com> Signed-off-by: Muhammet Kaan KILINÇ <muhammetkaankilinc@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-07-18crypto: drbg - Fix the fips_enabled priority boostEric Biggers1-1/+1
commit a8a1f93080efc83a9ff8452954429ae379e9e614 upstream. When fips_enabled=1, it seems to have been intended for one of the algorithms defined in crypto/drbg.c to be the highest priority "stdrng" algorithm, so that it is what is used by "stdrng" users. However, the code only boosts the priority to 400, which is less than the priority 500 used in drivers/crypto/caam/caamprng.c. Thus, the CAAM RNG could be used instead. Fix this by boosting the priority by 2000 instead of 200. Fixes: 541af946fe13 ("crypto: drbg - SP800-90A Deterministic Random Bit Generator") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: drbg - Fix ineffective sanity checkEric Biggers1-5/+4
commit 040ad83b0e8aa065fd2fc641cacba8491a8b186d upstream. Fix drbg_healthcheck_sanity() to correctly check the return value of drbg_generate(). drbg_generate() returns 0 on success, or a negative errno value on failure. drbg_healthcheck_sanity() incorrectly assumed that it returned a positive value on success. This didn't make the sanity check fail, but it made it ineffective. Fixes: cde001e4c3c3 ("crypto: rng - RNGs must return 0 in success case") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: drbg - Fix misaligned writes in CTR_DRBG and HASH_DRBGEric Biggers2-4/+6
commit ddc4dedb9ba3c8eecbc8c050fffd46d1b7e75c21 upstream. drbg_cpu_to_be32() is being used to do a plain write to a byte array, which doesn't have any alignment guarantee. This can cause a misaligned write. Replace it with the correct function, put_unaligned_be32(). Fixes: 72f3e00dd67e ("crypto: drbg - replace int2byte with cpu_to_be") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: drbg - Fix returning success on failure in CTR_DRBGEric Biggers1-1/+1
commit 39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b upstream. drbg_ctr_generate() sometimes returns success when it fails, leaving the output buffer uninitialized. Fix it. Fixes: cde001e4c3c3 ("crypto: rng - RNGs must return 0 in success case") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: pcrypt - restore callback for non-parallel fallbackRuijie Li1-0/+4
commit ed459fe319376e876de433d12b6c6772e612ca36 upstream. pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an asynchronous completion runs pcrypt_aead_done() even though the request was never enrolled in padata. Restore the original request callback and callback data before calling the child AEAD directly. This keeps the fallback path aligned with a direct AEAD request while leaving the parallel path unchanged. Fixes: 662f2f13e66d ("crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY") Cc: stable@kernel.org Reported-by: Yuan Tan <yuantan098@gmail.com> Reported-by: Yifan Wu <yifanwucs@gmail.com> Reported-by: Juefei Pu <tomapufckgml@gmail.com> Reported-by: Zhengchuan Liang <zcliangcn@gmail.com> Reported-by: Xin Liu <bird@lzu.edu.cn> Assisted-by: Codex:gpt-5.4 Signed-off-by: Ruijie Li <ruijieli51@gmail.com> Signed-off-by: Ren Wei <n05ec@lzu.edu.cn> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: ecc - Fix carry overflow in vli multiplicationAnastasia Tishchenko1-11/+20
commit 27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406 upstream. The carry flag calculation fails when r01.m_high is saturated (0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows. The condition (r01.m_high < product.m_high) doesn't handle the case where r01.m_high == product.m_high and an additional carry exists from lower-bit overflow. When commit 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") introduced crypto/ecc.c, it split the muladd() function in the micro-ecc library into separate mul_64_64() and add_128_128() helpers. It seems the check got lost in translation. Add proper handling for this boundary by accounting for the carry from the lower addition. Fixes: 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") Signed-off-by: Anastasia Tishchenko <sv3iry@gmail.com> Cc: stable@vger.kernel.org # v4.8+ Reviewed-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: chacha20poly1305 - validate poly1305 template argumentXiaonan Zhao1-2/+9
commit 265b861bece38318b8e0fc8fac0643d4ef906d31 upstream. chachapoly_create() still accepts the compatibility poly1305 parameter in the template name, but it assumes the second template argument is always present and immediately passes it to strcmp(). When the argument is missing, crypto_attr_alg_name() returns an error pointer. Check for that before comparing the name so malformed template instantiations fail with an error instead of dereferencing the error pointer in strcmp(). This matches the surrounding Crypto API template pattern where crypto_attr_alg_name() results are validated before string-specific use. Fixes: a298765e28ad ("crypto: chacha20poly1305 - Use lib/crypto poly1305") Cc: stable@kernel.org Reported-by: Yuan Tan <yuantan098@gmail.com> Reported-by: Zhengchuan Liang <zcliangcn@gmail.com> Reported-by: Xin Liu <bird@lzu.edu.cn> Co-developed-by: Luxing Yin <tr0jan@lzu.edu.cn> Signed-off-by: Luxing Yin <tr0jan@lzu.edu.cn> Signed-off-by: Xiaonan Zhao <ngochuongbui67@gmail.com> Signed-off-by: Ren Wei <n05ec@lzu.edu.cn> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: af_alg - Remove zero-copy support from skcipher and aeadEric Biggers2-52/+29
commit ffdd2bc378953b525aca61902534e753f1f8e734 upstream. The zero-copy support is one of the riskiest aspects of AF_ALG. It allows userspace to request cryptographic operations directly on pagecache pages of files like the 'su' binary. It also allows userspace to concurrently modify the memory which is being operated on, a recipe for TOCTOU vulnerabilities. While zero-copy support is more valuable in other areas of the kernel like the frequently used networking and file I/O code, it has far less value in AF_ALG, which is a niche UAPI. AF_ALG primarily just exists for backwards compatibility with a small set of userspace programs such as 'iwd' that haven't yet been fixed to use userspace crypto code. Originally AF_ALG was intended to be used to access hardware crypto accelerators. However, it isn't an efficient interface for that anyway, and it turned out to be rarely used in this way in practice. Thus, the risks of the zero-copy support in AF_ALG vastly outweigh its benefits. Let's just remove it. This commit removes it from the "skcipher" and "aead" algorithm types. "hash" will be handled separately. This is a soft break, not a hard break. Even after this commit, it still works to use splice() or sendfile() to transfer data to an AF_ALG request socket from a pipe or any file, respectively. What changes is just that the kernel now makes an internal, stable copy of the data before doing the crypto operation. So performance is slightly reduced, but the UAPI isn't broken. And, very importantly, it's much safer. Tested with libkcapi/test.sh. All its test cases still pass. I also verified that this would have prevented the copy.fail exploit as well. I also used a custom test program to verify that sendfile() still works. Fixes: 8ff590903d5f ("crypto: algif_skcipher - User-space interface for skcipher operations") Fixes: 400c40cf78da ("crypto: algif - add AEAD support") Reported-by: Taeyang Lee <0wn@theori.io> Link: https://copy.fail/ Reported-by: Feng Ning <feng@innora.ai> Closes: https://lore.kernel.org/r/afYcc-tZFwvZZo76@ans-MacBook-Pro.local Reviewed-by: Demi Marie Obenour <demiobenour@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18X.509: Fix validation of ASN.1 certificate headerLukas Wunner1-1/+1
commit 3b626ba431c4501512ad07549310685e07fe4706 upstream. x509_load_certificate_list() seeks to enforce that a certificate starts with 0x30 0x82 (ASN.1 SEQUENCE tag followed by a length of more than 256 and less than 65535 bytes). But it only enforces that *either* of those two byte values are present, instead of checking for the *conjunction* of the two values. Fix it. Fixes: 631cc66eb9ea ("MODSIGN: Provide module signing public keys to the kernel") Reported-by: Sashiko <sashiko-bot@kernel.org> Closes: https://lore.kernel.org/r/20260508033917.B5873C2BCB0@smtp.kernel.org/ Signed-off-by: Lukas Wunner <lukas@wunner.de> Cc: stable@vger.kernel.org # v3.7+ Reviewed-by: Ignat Korchagin <ignat@linux.win> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-18crypto: krb5 - filter out async aead implementations at allocMichael Bommarito1-1/+1
commit 6c9dddeb582fde005360f4fe02c760d45ca05fb5 upstream. krb5_aead_encrypt(), krb5_aead_decrypt() in rfc3961_simplified.c and rfc8009_encrypt(), rfc8009_decrypt() in rfc8009_aes2.c set a NULL completion callback and treat any negative return from crypto_aead_{encrypt,decrypt}() as terminal, falling through to kfree_sensitive(buffer). When the encrypt_name resolves to an async AEAD instance the request returns -EINPROGRESS, the buffer is freed while the backend's worker still holds a pointer, and the worker dereferences the freed slab on completion. KASAN report under UML+SLUB with a synthetic async aead backend bound to krb5->encrypt_name: BUG: KASAN: slab-use-after-free in t5_stub_complete+0x7d/0xc7 The helpers were written synchronously, so filter the async instances out at allocation time instead of plumbing crypto_wait_req() through every call site. Reachable via net/rxrpc/rxgk.c, fs/afs/cm_security.c and net/ceph/crypto.c on systems with an async AEAD provider bound to the krb5 enctype name. Fixes: 00244da40f78 ("crypto/krb5: Implement the Kerberos5 rfc3961 encrypt and decrypt functions") Fixes: 6c3c0e86c2ac ("crypto/krb5: Implement the AES enctypes from rfc8009") Cc: stable@vger.kernel.org Suggested-by: Herbert Xu <herbert@gondor.apana.org.au> Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-21crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checksDavid Howells1-6/+48
Change the krb5 crypto library to provide facilities to precheck the length of the message about to be decrypted or verified. Fix AF_RXRPC to make use of this to validate DATA packets secured with RxGK. Fixes: 9d1d2b59341f ("rxrpc: rxgk: Implement the yfs-rxgk security class (GSSAPI)") Closes: https://sashiko.dev/#/patchset/20260511160753.607296-1-dhowells%40redhat.com Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: Simon Horman <horms@kernel.org> cc: Chuck Lever <chuck.lever@oracle.com> cc: linux-afs@lists.infradead.org Reviewed-by: Jeffrey Altman <jaltman@auristor.com> Tested-by: Marc Dionne <marc.dionne@auristor.com> Link: https://patch.msgid.link/20260515230516.2718212-2-dhowells@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-02Merge tag 'v7.1-p3' of ↵Linus Torvalds1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: - Reject algorithms with authsizes that are too short in authencesn * tag 'v7.1-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: authencesn - reject short ahash digests during instance creation
2026-04-23crypto: authencesn - reject short ahash digests during instance creationYucheng Lu1-0/+5
authencesn requires either a zero authsize or an authsize of at least 4 bytes because the ESN encrypt/decrypt paths always move 4 bytes of high-order sequence number data at the end of the authenticated data. While crypto_authenc_esn_setauthsize() already rejects explicit non-zero authsizes in the range 1..3, crypto_authenc_esn_create() still copied auth->digestsize into inst->alg.maxauthsize without validating it. The AEAD core then initialized the tfm's default authsize from that value. As a result, selecting an ahash with digest size 1..3, such as cbcmac(cipher_null), exposed authencesn instances whose default authsize was invalid even though setauthsize() would have rejected the same value. AF_ALG could then trigger the ESN tail handling with a too-short tag and hit an out-of-bounds access. Reject authencesn instances whose ahash digest size is in the invalid non-zero range 1..3 so that no tfm can inherit an unsupported default authsize. Fixes: f15f05b0a5de ("crypto: ccm - switch to separate cbcmac driver") Cc: stable@kernel.org Reported-by: Yifan Wu <yifanwucs@gmail.com> Reported-by: Juefei Pu <tomapufckgml@gmail.com> Co-developed-by: Yuan Tan <yuantan098@gmail.com> Signed-off-by: Yuan Tan <yuantan098@gmail.com> Suggested-by: Xin Liu <bird@lzu.edu.cn> Tested-by: Yuhang Zheng <z1652074432@gmail.com> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Yucheng Lu <kanolyc@gmail.com> Signed-off-by: Ren Wei <n05ec@lzu.edu.cn> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-21Merge tag 'v7.1-p2' of ↵Linus Torvalds5-32/+51
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Fix IPsec ESN regression in authencesn - Fix hmac setkey failure in eip93 - Guard against IV changing in algif_aead - Fix async completion handling in krb5enc - Fix fallback async completion in acomp - Fix handling of MAY_BACKLOG requests in pcrypt - Fix issues with firmware-returned values in ccp * tag 'v7.1-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: krb5enc - fix async decrypt skipping hash verification crypto: algif_aead - snapshot IV for async AEAD requests crypto: acomp - fix wrong pointer stored by acomp_save_req() crypto: ccp - copy IV using skcipher ivsize crypto: ccp: Don't attempt to copy ID to userspace if PSP command failed crypto: ccp: Don't attempt to copy PDH cert to userspace if PSP command failed crypto: ccp: Don't attempt to copy CSR to userspace if PSP command failed crypto: pcrypt - Fix handling of MAY_BACKLOG requests crypto: sa2ul - Fix AEAD fallback algorithm names crypto: authencesn - Fix src offset when decrypting in-place crypto: eip93 - fix hmac setkey algo selection
2026-04-20crypto: krb5enc - fix async decrypt skipping hash verificationDudu Lu1-21/+31
krb5enc_dispatch_decrypt() sets req->base.complete as the skcipher callback, which is the caller's own completion handler. When the skcipher completes asynchronously, this signals "done" to the caller without executing krb5enc_dispatch_decrypt_hash(), completely bypassing the integrity verification (hash check). Compare with the encrypt path which correctly uses krb5enc_encrypt_done as an intermediate callback to chain into the hash computation on async completion. Fix by adding krb5enc_decrypt_done as an intermediate callback that chains into krb5enc_dispatch_decrypt_hash() upon async skcipher completion, matching the encrypt path's callback pattern. Also fix EBUSY/EINPROGRESS handling throughout: remove krb5enc_request_complete() which incorrectly swallowed EINPROGRESS notifications that must be passed up to callers waiting on backlogged requests, and add missing EBUSY checks in krb5enc_encrypt_ahash_done for the dispatch_encrypt return value. Fixes: d1775a177f7f ("crypto: Add 'krb5enc' hash and cipher AEAD algorithm") Signed-off-by: Dudu Lu <phx0fer@gmail.com> Unset MAY_BACKLOG on the async completion path so the user won't see back-to-back EINPROGRESS notifications. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-20crypto: algif_aead - snapshot IV for async AEAD requestsDouya Le1-2/+8
AF_ALG AEAD AIO requests currently use the socket-wide IV buffer during request processing. For async requests, later socket activity can update that shared state before the original request has fully completed, which can lead to inconsistent IV handling. Snapshot the IV into per-request storage when preparing the AEAD request, so in-flight operations no longer depend on mutable socket state. Fixes: d887c52d6ae4 ("crypto: algif_aead - overhaul memory management") Cc: stable@kernel.org Reported-by: Yuan Tan <yuantan098@gmail.com> Reported-by: Yifan Wu <yifanwucs@gmail.com> Reported-by: Juefei Pu <tomapufckgml@gmail.com> Reported-by: Xin Liu <bird@lzu.edu.cn> Co-developed-by: Luxing Yin <tr0jan@lzu.edu.cn> Signed-off-by: Luxing Yin <tr0jan@lzu.edu.cn> Tested-by: Yucheng Lu <kanolyc@gmail.com> Signed-off-by: Douya Le <ldy3087146292@gmail.com> Signed-off-by: Ren Wei <n05ec@lzu.edu.cn> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-17crypto: acomp - fix wrong pointer stored by acomp_save_req()Giovanni Cabiddu1-5/+3
acomp_save_req() stores &req->chain in req->base.data. When acomp_reqchain_done() is invoked on asynchronous completion, it receives &req->chain as the data argument but casts it directly to struct acomp_req. Since data points to the chain member, all subsequent field accesses are at a wrong offset, resulting in memory corruption. The issue occurs when an asynchronous hardware implementation, such as the QAT driver, completes a request that uses the DMA virtual address interface (e.g. acomp_request_set_src_dma()). This combination causes crypto_acomp_compress() to enter the acomp_do_req_chain() path, which sets acomp_reqchain_done() as the completion callback via acomp_save_req(). With KASAN enabled, this manifests as a general protection fault in acomp_reqchain_done(): general protection fault, probably for non-canonical address 0xe000040000000000 KASAN: probably user-memory-access in range [0x0000400000000000-0x0000400000000007] RIP: 0010:acomp_reqchain_done+0x15b/0x4e0 Call Trace: <IRQ> qat_comp_alg_callback+0x5d/0xa0 [intel_qat] adf_ring_response_handler+0x376/0x8b0 [intel_qat] adf_response_handler+0x60/0x170 [intel_qat] tasklet_action_common+0x223/0x820 handle_softirqs+0x1ab/0x640 </IRQ> Fix this by storing the request itself in req->base.data instead of &req->chain, so that acomp_reqchain_done() receives the correct pointer. Simplify acomp_restore_req() accordingly to access req->chain directly. Fixes: 64929fe8c0a4 ("crypto: acomp - Remove request chaining") Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-17Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of ↵Linus Torvalds4-201/+10
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - "pid: make sub-init creation retryable" (Oleg Nesterov) Make creation of init in a new namespace more robust by clearing away some historical cruft which is no longer needed. Also some documentation fixups - "selftests/fchmodat2: Error handling and general" (Mark Brown) Fix and a cleanup for the fchmodat2() syscall selftest - "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko) - "hung_task: Provide runtime reset interface for hung task detector" (Aaron Tomlin) Give administrators the ability to zero out /proc/sys/kernel/hung_task_detect_count - "tools/getdelays: use the static UAPI headers from tools/include/uapi" (Thomas Weißschuh) Teach getdelays to use the in-kernel UAPI headers rather than the system-provided ones - "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta) Several cleanups and fixups to the hardlockup detector code and its documentation - "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law) A couple of small/theoretical fixes in the bch code - "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo) - "cleanup the RAID5 XOR library" (Christoph Hellwig) A quite far-reaching cleanup to this code. I can't do better than to quote Christoph: "The XOR library used for the RAID5 parity is a bit of a mess right now. The main file sits in crypto/ despite not being cryptography and not using the crypto API, with the generic implementations sitting in include/asm-generic and the arch implementations sitting in an asm/ header in theory. The latter doesn't work for many cases, so architectures often build the code directly into the core kernel, or create another module for the architecture code. Change this to a single module in lib/ that also contains the architecture optimizations, similar to the library work Eric Biggers has done for the CRC and crypto libraries later. After that it changes to better calling conventions that allow for smarter architecture implementations (although none is contained here yet), and uses static_call to avoid indirection function call overhead" - "lib/list_sort: Clean up list_sort() scheduling workarounds" (Kuan-Wei Chiu) Clean up this library code by removing a hacky thing which was added for UBIFS, which UBIFS doesn't actually need - "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt) Fix a few bugs in the scatterlist code, add in-kernel tests for the now-fixed bugs and fix a leak in the test itself - "kdump: Enable LUKS-encrypted dump target support in ARM64 and PowerPC" (Coiby Xu) Enable support of the LUKS-encrypted device dump target on arm64 and powerpc - "ocfs2: consolidate extent list validation into block read callbacks" (Joseph Qi) Cleanup, simplify, and make more robust ocfs2's validation of extent list fields (Kernel test robot loves mounting corrupted fs images!) * tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits) ocfs2: validate group add input before caching ocfs2: validate bg_bits during freefrag scan ocfs2: fix listxattr handling when the buffer is full doc: watchdog: fix typos etc update Sean's email address ocfs2: use get_random_u32() where appropriate ocfs2: split transactions in dio completion to avoid credit exhaustion ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path() ocfs2: validate extent block list fields during block read ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec() ocfs2: validate dx_root extent list fields during block read ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY ocfs2: handle invalid dinode in ocfs2_group_extend .get_maintainer.ignore: add Askar ocfs2: validate bg_list extent bounds in discontig groups checkpatch: exclude forward declarations of const structs tools/accounting: handle truncated taskstats netlink messages taskstats: set version in TGID exit notifications ocfs2/heartbeat: fix slot mapping rollback leaks on error paths arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel ...
2026-04-16crypto: pcrypt - Fix handling of MAY_BACKLOG requestsHerbert Xu1-2/+5
MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications. Reported-by: Yiming Qian <yimingqian591@gmail.com> Fixes: 5a1436beec57 ("crypto: pcrypt - call the complete function on error") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-16crypto: authencesn - Fix src offset when decrypting in-placeHerbert Xu1-2/+4
The src SG list offset wasn't set properly when decrypting in-place, fix it. Reported-by: Wolfgang Walter <linux@stwm.de> Fixes: e02494114ebf ("crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-16Merge tag 'v7.1-p1' of ↵Linus Torvalds17-408/+1896
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Replace crypto_get_default_rng with crypto_stdrng_get_bytes - Remove simd skcipher support - Allow algorithm types to be disabled when CRYPTO_SELFTESTS is off Algorithms: - Remove CPU-based des/3des acceleration - Add test vectors for authenc(hmac(md5),cbc({aes,des})) and authenc(hmac({md5,sha1,sha224,sha256,sha384,sha512}),rfc3686(ctr(aes))) - Replace spin lock with mutex in jitterentropy Drivers: - Add authenc algorithms to safexcel - Add support for zstd in qat - Add wireless mode support for QAT GEN6 - Add anti-rollback support for QAT GEN6 - Add support for ctr(aes), gcm(aes), and ccm(aes) in dthev2" * tag 'v7.1-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (129 commits) crypto: af_alg - use sock_kmemdup in alg_setkey_by_key_serial crypto: vmx - remove CRYPTO_DEV_VMX from Kconfig crypto: omap - convert reqctx buffer to fixed-size array crypto: atmel-sha204a - add Thorsten Blum as maintainer crypto: atmel-ecc - add Thorsten Blum as maintainer crypto: qat - fix IRQ cleanup on 6xxx probe failure crypto: geniv - Remove unused spinlock from struct aead_geniv_ctx crypto: qce - simplify qce_xts_swapiv() crypto: hisilicon - Fix dma_unmap_single() direction crypto: talitos - rename first/last to first_desc/last_desc crypto: talitos - fix SEC1 32k ahash request limitation crypto: jitterentropy - replace long-held spinlock with mutex crypto: hisilicon - remove unused and non-public APIs for qm and sec crypto: hisilicon/qm - drop redundant variable initialization crypto: hisilicon/qm - remove else after return crypto: hisilicon/qm - add const qualifier to info_name in struct qm_cmd_dump_item crypto: hisilicon - fix the format string type error crypto: ccree - fix a memory leak in cc_mac_digest() crypto: qat - add support for zstd crypto: qat - use swab32 macro ...
2026-04-15Merge tag 'net-next-7.1' of ↵Linus Torvalds6-249/+0
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core & protocols: - Support HW queue leasing, allowing containers to be granted access to HW queues for zero-copy operations and AF_XDP - Number of code moves to help the compiler with inlining. Avoid output arguments for returning drop reason where possible - Rework drop handling within qdiscs to include more metadata about the reason and dropping qdisc in the tracepoints - Remove the rtnl_lock use from IP Multicast Routing - Pack size information into the Rx Flow Steering table pointer itself. This allows making the table itself a flat array of u32s, thus making the table allocation size a power of two - Report TCP delayed ack timer information via socket diag - Add ip_local_port_step_width sysctl to allow distributing the randomly selected ports more evenly throughout the allowed space - Add support for per-route tunsrc in IPv6 segment routing - Start work of switching sockopt handling to iov_iter - Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid buffer size drifting up - Support MSG_EOR in MPTCP - Add stp_mode attribute to the bridge driver for STP mode selection. This addresses concerns about call_usermodehelper() usage - Remove UDP-Lite support (as announced in 2023) - Remove support for building IPv6 as a module. Remove the now unnecessary function calling indirection Cross-tree stuff: - Move Michael MIC code from generic crypto into wireless, it's considered insecure but some WiFi networks still need it Netfilter: - Switch nft_fib_ipv6 module to no longer need temporary dst_entry object allocations by using fib6_lookup() + RCU. Florian W reports this gets us ~13% higher packet rate - Convert IPVS's global __ip_vs_mutex to per-net service_mutex and switch the service tables to be per-net. Convert some code that walks the service lists to use RCU instead of the service_mutex - Add more opinionated input validation to lower security exposure - Make IPVS hash tables to be per-netns and resizable Wireless: - Finished assoc frame encryption/EPPKE/802.1X-over-auth - Radar detection improvements - Add 6 GHz incumbent signal detection APIs - Multi-link support for FILS, probe response templates and client probing - New APIs and mac80211 support for NAN (Neighbor Aware Networking, aka Wi-Fi Aware) so less work must be in firmware Driver API: - Add numerical ID for devlink instances (to avoid having to create fake bus/device pairs just to have an ID). Support shared devlink instances which span multiple PFs - Add standard counters for reporting pause storm events (implement in mlx5 and fbnic) - Add configuration API for completion writeback buffering (implement in mana) - Support driver-initiated change of RSS context sizes - Support DPLL monitoring input frequency (implement in zl3073x) - Support per-port resources in devlink (implement in mlx5) Misc: - Expand the YAML spec for Netfilter Drivers - Software: - macvlan: support multicast rx for bridge ports with shared source MAC address - team: decouple receive and transmit enablement for IEEE 802.3ad LACP "independent control" - Ethernet high-speed NICs: - nVidia/Mellanox: - support high order pages in zero-copy mode (for payload coalescing) - support multiple packets in a page (for systems with 64kB pages) - Broadcom 25-400GE (bnxt): - implement XDP RSS hash metadata extraction - add software fallback for UDP GSO, lowering the IOMMU cost - Broadcom 800GE (bnge): - add link status and configuration handling - add various HW and SW statistics - Marvell/Cavium: - NPC HW block support for cn20k - Huawei (hinic3): - add mailbox / control queue - add rx VLAN offload - add driver info and link management - Ethernet NICs: - Marvell/Aquantia: - support reading SFP module info on some AQC100 cards - Realtek PCI (r8169): - add support for RTL8125cp - Realtek USB (r8152): - support for the RTL8157 5Gbit chip - add 2500baseT EEE status/configuration support - Ethernet NICs embedded and off-the-shelf IP: - Synopsys (stmmac): - cleanup and reorganize SerDes handling and PCS support - cleanup descriptor handling and per-platform data - cleanup and consolidate MDIO defines and handling - shrink driver memory use for internal structures - improve Tx IRQ coalescing - improve TCP segmentation handling - add support for Spacemit K3 - Cadence (macb): - support PHYs that have inband autoneg disabled with GEM - support IEEE 802.3az EEE - rework usrio capabilities and handling - AMD (xgbe): - improve power management for S0i3 - improve TX resilience for link-down handling - Virtual: - Google cloud vNIC: - support larger ring sizes in DQO-QPL mode - improve HW-GRO handling - support UDP GSO for DQO format - PCIe NTB: - support queue count configuration - Ethernet PHYs: - automatically disable PHY autonomous EEE if MAC is in charge - Broadcom: - add BCM84891/BCM84892 support - Micrel: - support for LAN9645X internal PHY - Realtek: - add RTL8224 pair order support - support PHY LEDs on RTL8211F-VD - support spread spectrum clocking (SSC) - Maxlinear: - add PHY-level statistics via ethtool - Ethernet switches: - Maxlinear (mxl862xx): - support for bridge offloading - support for VLANs - support driver statistics - Bluetooth: - large number of fixes and new device IDs - Mediatek: - support MT6639 (MT7927) - support MT7902 SDIO - WiFi: - Intel (iwlwifi): - UNII-9 and continuing UHR work - MediaTek (mt76): - mt7996/mt7925 MLO fixes/improvements - mt7996 NPU support (HW eth/wifi traffic offload) - Qualcomm (ath12k): - monitor mode support on IPQ5332 - basic hwmon temperature reporting - support IPQ5424 - Realtek: - add USB RX aggregation to improve performance - add USB TX flow control by tracking in-flight URBs - Cellular: - IPA v5.2 support" * tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits) net: pse-pd: fix kernel-doc function name for pse_control_find_by_id() wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit wireguard: allowedips: remove redundant space tools: ynl: add sample for wireguard wireguard: allowedips: Use kfree_rcu() instead of call_rcu() MAINTAINERS: Add netkit selftest files selftests/net: Add additional test coverage in nk_qlease selftests/net: Split netdevsim tests from HW tests in nk_qlease tools/ynl: Make YnlFamily closeable as a context manager net: airoha: Add missing PPE configurations in airoha_ppe_hw_init() net: airoha: Fix VIP configuration for AN7583 SoC net: caif: clear client service pointer on teardown net: strparser: fix skb_head leak in strp_abort_strp() net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() selftests/bpf: add test for xdp_master_redirect with bond not up net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration sctp: disable BH before calling udp_tunnel_xmit_skb() sctp: fix missing encap_port propagation for GSO fragments net: airoha: Rely on net_device pointer in ETS callbacks ...
2026-04-14Merge tag 'crc-for-linus' of ↵Linus Torvalds1-18/+1
git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull CRC updates from Eric Biggers: - Several improvements related to crc_kunit, to align with the standard KUnit conventions and make it easier for developers and CI systems to run this test suite - Add an arm64-optimized implementation of CRC64-NVME - Remove unused code for big endian arm64 * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crc: arm64: Simplify intrinsics implementation lib/crc: arm64: Use existing macros for kernel-mode FPU cflags lib/crc: arm64: Drop unnecessary chunking logic from crc64 lib/crc: arm64: Assume a little-endian kernel lib/crc: arm64: add NEON accelerated CRC64-NVMe implementation lib/crc: arm64: Drop check for CONFIG_KERNEL_MODE_NEON crypto: crc32c - Remove another outdated comment crypto: crc32c - Remove more outdated usage information kunit: configs: Enable all CRC tests in all_tests.config lib/crc: tests: Add a .kunitconfig file lib/crc: tests: Add CRC_ENABLE_ALL_FOR_KUNIT lib/crc: tests: Make crc_kunit test only the enabled CRC variants
2026-04-14Merge tag 'libcrypto-for-linus' of ↵Linus Torvalds14-825/+420
git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull crypto library updates from Eric Biggers: - Migrate more hash algorithms from the traditional crypto subsystem to lib/crypto/ Like the algorithms migrated earlier (e.g. SHA-*), this simplifies the implementations, improves performance, enables further simplifications in calling code, and solves various other issues: - AES CBC-based MACs (AES-CMAC, AES-XCBC-MAC, and AES-CBC-MAC) - Support these algorithms in lib/crypto/ using the AES library and the existing arm64 assembly code - Reimplement the traditional crypto API's "cmac(aes)", "xcbc(aes)", and "cbcmac(aes)" on top of the library - Convert mac80211 to use the AES-CMAC library. Note: several other subsystems can use it too and will be converted later - Drop the broken, nonstandard, and likely unused support for "xcbc(aes)" with key lengths other than 128 bits - Enable optimizations by default - GHASH - Migrate the standalone GHASH code into lib/crypto/ - Integrate the GHASH code more closely with the very similar POLYVAL code, and improve the generic GHASH implementation to resist cache-timing attacks and use much less memory - Reimplement the AES-GCM library and the "gcm" crypto_aead template on top of the GHASH library. Remove "ghash" from the crypto_shash API, as it's no longer needed - Enable optimizations by default - SM3 - Migrate the kernel's existing SM3 code into lib/crypto/, and reimplement the traditional crypto API's "sm3" on top of it - I don't recommend using SM3, but this cleanup is worthwhile to organize the code the same way as other algorithms - Testing improvements: - Add a KUnit test suite for each of the new library APIs - Migrate the existing ChaCha20Poly1305 test to KUnit - Make the KUnit all_tests.config enable all crypto library tests - Move the test kconfig options to the Runtime Testing menu - Other updates to arch-optimized crypto code: - Optimize SHA-256 for Zhaoxin CPUs using the Padlock Hash Engine - Remove some MD5 implementations that are no longer worth keeping - Drop big endian and voluntary preemption support from the arm64 code, as those configurations are no longer supported on arm64 - Make jitterentropy and samples/tsm-mr use the crypto library APIs * tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (66 commits) lib/crypto: arm64: Assume a little-endian kernel arm64: fpsimd: Remove obsolete cond_yield macro lib/crypto: arm64/sha3: Remove obsolete chunking logic lib/crypto: arm64/sha512: Remove obsolete chunking logic lib/crypto: arm64/sha256: Remove obsolete chunking logic lib/crypto: arm64/sha1: Remove obsolete chunking logic lib/crypto: arm64/poly1305: Remove obsolete chunking logic lib/crypto: arm64/gf128hash: Remove obsolete chunking logic lib/crypto: arm64/chacha: Remove obsolete chunking logic lib/crypto: arm64/aes: Remove obsolete chunking logic lib/crypto: Include <crypto/utils.h> instead of <crypto/algapi.h> lib/crypto: aesgcm: Don't disable IRQs during AES block encryption lib/crypto: aescfb: Don't disable IRQs during AES block encryption lib/crypto: tests: Migrate ChaCha20Poly1305 self-test to KUnit lib/crypto: sparc: Drop optimized MD5 code lib/crypto: mips: Drop optimized MD5 code lib: Move crypto library tests to Runtime Testing menu crypto: sm3 - Remove 'struct sm3_state' crypto: sm3 - Remove the original "sm3_block_generic()" crypto: sm3 - Remove sm3_base.h ...
2026-04-14Merge tag 'for-7.1/block-20260411' of ↵Linus Torvalds3-580/+0
git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux Pull block updates from Jens Axboe: - Add shared memory zero-copy I/O support for ublk, bypassing per-I/O copies between kernel and userspace by matching registered buffer PFNs at I/O time. Includes selftests. - Refactor bio integrity to support filesystem initiated integrity operations and arbitrary buffer alignment. - Clean up bio allocation, splitting bio_alloc_bioset() into clear fast and slow paths. Add bio_await() and bio_submit_or_kill() helpers, unify synchronous bi_end_io callbacks. - Fix zone write plug refcount handling and plug removal races. Add support for serializing zone writes at QD=1 for rotational zoned devices, yielding significant throughput improvements. - Add SED-OPAL ioctls for Single User Mode management and a STACK_RESET command. - Add io_uring passthrough (uring_cmd) support to the BSG layer. - Replace pp_buf in partition scanning with struct seq_buf. - zloop improvements and cleanups. - drbd genl cleanup, switching to pre_doit/post_doit. - NVMe pull request via Keith: - Fabrics authentication updates - Enhanced block queue limits support - Workqueue usage updates - A new write zeroes device quirk - Tagset cleanup fix for loop device - MD pull requests via Yu Kuai: - Fix raid5 soft lockup in retry_aligned_read() - Fix raid10 deadlock with check operation and nowait requests - Fix raid1 overlapping writes on writemostly disks - Fix sysfs deadlock on array_state=clear - Proactive RAID-5 parity building with llbitmap, with write_zeroes_unmap optimization for initial sync - Fix llbitmap barrier ordering, rdev skipping, and bitmap_ops version mismatch fallback - Fix bcache use-after-free and uninitialized closure - Validate raid5 journal metadata payload size - Various cleanups - Various other fixes, improvements, and cleanups * tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (146 commits) ublk: fix tautological comparison warning in ublk_ctrl_reg_buf scsi: bsg: fix buffer overflow in scsi_bsg_uring_cmd() block: refactor blkdev_zone_mgmt_ioctl MAINTAINERS: update ublk driver maintainer email Documentation: ublk: address review comments for SHMEM_ZC docs ublk: allow buffer registration before device is started ublk: replace xarray with IDA for shmem buffer index allocation ublk: simplify PFN range loop in __ublk_ctrl_reg_buf ublk: verify all pages in multi-page bvec fall within registered range ublk: widen ublk_shmem_buf_reg.len to __u64 for 4GB buffer support xfs: use bio_await in xfs_zone_gc_reset_sync block: add a bio_submit_or_kill helper block: factor out a bio_await helper block: unify the synchronous bi_end_io callbacks xfs: fix number of GC bvecs selftests/ublk: add read-only buffer registration test selftests/ublk: add filesystem fio verify test for shmem_zc selftests/ublk: add hugetlbfs shmem_zc test for loop target selftests/ublk: add shared memory zero-copy test selftests/ublk: add UBLK_F_SHMEM_ZC support for loop target ...
2026-04-12Merge tag 'wireless-next-2026-04-10' of ↵Jakub Kicinski6-249/+0
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Final updates, notably: - crypto: move Michael MIC code into wireless (only) - mac80211: - multi-link 4-addr support - NAN data support (but no drivers yet) - ath10k: DT quirk to make it work on some devices - ath12k: IPQ5424 support - rtw89: USB improvements for performance * tag 'wireless-next-2026-04-10' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (124 commits) wifi: cfg80211: Explicitly include <linux/export.h> in michael-mic.c wifi: ath10k: Add device-tree quirk to skip host cap QMI requests dt-bindings: wireless: ath10k: Add quirk to skip host cap QMI requests crypto: Remove michael_mic from crypto_shash API wifi: ipw2x00: Use michael_mic() from cfg80211 wifi: ath12k: Use michael_mic() from cfg80211 wifi: ath11k: Use michael_mic() from cfg80211 wifi: mac80211, cfg80211: Export michael_mic() and move it to cfg80211 wifi: ipw2x00: Rename michael_mic() to libipw_michael_mic() wifi: libertas_tf: refactor endpoint lookup wifi: libertas: refactor endpoint lookup wifi: at76c50x: refactor endpoint lookup wifi: ath12k: Enable IPQ5424 WiFi device support wifi: ath12k: Add CE remap hardware parameters for IPQ5424 wifi: ath12k: add ath12k_hw_regs for IPQ5424 wifi: ath12k: add ath12k_hw_version_map entry for IPQ5424 wifi: ath12k: Add ath12k_hw_params for IPQ5424 dt-bindings: net: wireless: add ath12k wifi device IPQ5424 wifi: ath10k: fix station lookup failure during disconnect wifi: ath12k: Create symlink for each radio in a wiphy ... ==================== Link: https://patch.msgid.link/20260410064703.735099-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-12Merge tag 'v7.0-p5' of ↵Linus Torvalds4-7/+14
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Enforce rx socket buffer limit in af_alg - Fix array overflow in af_alg_pull_tsgl - Fix out-of-bounds access when parsing extensions in X.509 - Fix minimum rx size check in algif_aead * tag 'v7.0-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: algif_aead - Fix minimum RX size check for decryption X.509: Fix out-of-bounds access when parsing extensions crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: af_alg - limit RX SG extraction by receive buffer budget
2026-04-12crypto: af_alg - use sock_kmemdup in alg_setkey_by_key_serialThorsten Blum1-3/+1
Replace sock_kmalloc() followed by memcpy() with sock_kmemdup() to simplify alg_setkey_by_key_serial(). Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-12crypto: geniv - Remove unused spinlock from struct aead_geniv_ctxHerbert Xu1-2/+0
The spin lock in geniv hasn't been used in over 10 years. Remove it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-12crypto: jitterentropy - replace long-held spinlock with mutexHaixin Xu1-7/+7
jent_kcapi_random() serializes the shared jitterentropy state, but it currently holds a spinlock across the jent_read_entropy() call. That path performs expensive jitter collection and SHA3 conditioning, so parallel readers can trigger stalls as contending waiters spin for the same lock. To prevent non-preemptible lock hold, replace rng->jent_lock with a mutex so contended readers sleep instead of spinning on a shared lock held across expensive entropy generation. Fixes: bb5530e40824 ("crypto: jitterentropy - add jitterentropy RNG") Reported-by: Yifan Wu <yifanwucs@gmail.com> Reported-by: Juefei Pu <tomapufckgml@gmail.com> Reported-by: Yuan Tan <yuantan098@gmail.com> Suggested-by: Xin Liu <bird@lzu.edu.cn> Signed-off-by: Haixin Xu <jerryxucs@gmail.com> Reviewed-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-12crypto: algif_aead - Fix minimum RX size check for decryptionHerbert Xu1-1/+1
The check for the minimum receive buffer size did not take the tag size into account during decryption. Fix this by adding the required extra length. Reported-by: syzbot+aa11561819dc42ebbc7c@syzkaller.appspotmail.com Reported-by: Daniel Pouzzner <douzzer@mega.nu> Fixes: d887c52d6ae4 ("crypto: algif_aead - overhaul memory management") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-12X.509: Fix out-of-bounds access when parsing extensionsLukas Wunner1-4/+4
Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before checking its length. Fix it. The bug can be triggered by an unprivileged user by submitting a specially crafted certificate to the kernel through the keyrings(7) API. Leo has demonstrated this with a proof-of-concept program responsibly disclosed off-list. Fixes: 30eae2b037af ("KEYS: X.509: Parse Basic Constraints for CA") Fixes: 567671281a75 ("KEYS: X.509: Parse Key Usage") Reported-by: Leo Lin <leo@depthfirst.com> # off-list Signed-off-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Ignat Korchagin <ignat@linux.win> Cc: stable@vger.kernel.org # v6.4+ Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-12crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsglHerbert Xu1-2/+2
When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument. Reported-by: syzbot+d23888375c2737c17ba5@syzkaller.appspotmail.com Fixes: e870456d8e7c ("crypto: algif_skcipher - overhaul memory management") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-08crypto: Remove michael_mic from crypto_shash APIEric Biggers6-249/+0
Remove the "michael_mic" crypto_shash algorithm, since it's no longer used. Its only users were wireless drivers, which have now been converted to use the michael_mic() function instead. It makes sense that no other users ever appeared: Michael MIC is an insecure algorithm that is specific to WPA TKIP, which itself was an interim security solution to replace the broken WEP standard. Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Eric Biggers <ebiggers@kernel.org> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Link: https://patch.msgid.link/20260408030651.80336-7-ebiggers@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2026-04-03async_xor: use xor_genChristoph Hellwig1-24/+10
Replace use of the loop around xor_blocks with the easier to use xor_gen API. Link: https://lkml.kernel.org/r/20260327061704.3707577-25-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Tested-by: Eric Biggers <ebiggers@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Borislav Petkov (AMD)" <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Mason <clm@fb.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: David Sterba <dsterba@suse.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason A. Donenfeld <jason@zx2c4.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Li Nan <linan122@huawei.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Magnus Lindholm <linmag7@gmail.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Song Liu <song@kernel.org> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Ted Ts'o <tytso@mit.edu> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: WANG Xuerui <kernel@xen0n.name> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-03xor: move to lib/raid/Christoph Hellwig3-179/+0
Move the RAID XOR code to lib/raid/ as it has nothing to do with the crypto API. Link: https://lkml.kernel.org/r/20260327061704.3707577-6-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Tested-by: Eric Biggers <ebiggers@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Borislav Petkov (AMD)" <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Mason <clm@fb.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: David Sterba <dsterba@suse.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason A. Donenfeld <jason@zx2c4.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Li Nan <linan122@huawei.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Magnus Lindholm <linmag7@gmail.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Song Liu <song@kernel.org> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Ted Ts'o <tytso@mit.edu> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: WANG Xuerui <kernel@xen0n.name> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-03xor: assert that xor_blocks is not call from interrupt contextChristoph Hellwig1-0/+2
Patch series "cleanup the RAID5 XOR library", v4. The XOR library used for the RAID5 parity is a bit of a mess right now. The main file sits in crypto/ despite not being cryptography and not using the crypto API, with the generic implementations sitting in include/asm-generic and the arch implementations sitting in an asm/ header in theory. The latter doesn't work for many cases, so architectures often build the code directly into the core kernel, or create another module for the architecture code. Change this to a single module in lib/ that also contains the architecture optimizations, similar to the library work Eric Biggers has done for the CRC and crypto libraries later. After that it changes to better calling conventions that allow for smarter architecture implementations (although none is contained here yet), and uses static_call to avoid indirection function call overhead. This patch (of 27): Most of the optimized xor_blocks versions require FPU/vector registers, which generally are not supported in interrupt context. Both callers already are in user context, so enforce this at the highest level. Link: https://lkml.kernel.org/r/20260327061704.3707577-1-hch@lst.de Link: https://lkml.kernel.org/r/20260327061704.3707577-2-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Tested-by: Eric Biggers <ebiggers@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Borislav Petkov (AMD)" <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Mason <clm@fb.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: David Sterba <dsterba@suse.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason A. Donenfeld <jason@zx2c4.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Li Nan <linan122@huawei.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Magnus Lindholm <linmag7@gmail.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Song Liu <song@kernel.org> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Ted Ts'o <tytso@mit.edu> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: WANG Xuerui <kernel@xen0n.name> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-03crypto: cryptomgr - Select algorithm types only when CRYPTO_SELFTESTSEric Biggers1-8/+19
Enabling any template selects CRYPTO_MANAGER, which causes CRYPTO_MANAGER2 to enable itself, which selects every algorithm type option. However, pulling in all algorithm types is needed only when the self-tests are enabled. So condition the selections accordingly. To make this possible, also add the missing selections to various symbols that were relying on transitive selections via CRYPTO_MANAGER. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: rng - Don't pull in DRBG when CRYPTO_FIPS=nEric Biggers1-7/+0
crypto_stdrng_get_bytes() is now always available: - When CRYPTO_FIPS=n it is an inline function that always calls into the always-built-in drivers/char/random.c. - When CRYPTO_FIPS=y it is an inline function that calls into either random.c or crypto/rng.c, depending on the value of fips_enabled. The former is again always built-in. The latter is built-in as well in this case, due to CRYPTO_FIPS=y. Thus, the CRYPTO_RNG_DEFAULT symbol is no longer needed. Remove it. This makes it so that CRYPTO_DRBG_MENU (and hence also CRYPTO_DRBG, CRYPTO_JITTERENTROPY, and CRYPTO_LIB_SHA3) no longer gets unnecessarily pulled into CRYPTO_FIPS=n kernels. I.e. CRYPTO_FIPS=n kernels are no longer bloated with code that is relevant only to FIPS certifications. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: fips - Depend on CRYPTO_DRBG=yEric Biggers1-1/+1
Currently, the callers of crypto_stdrng_get_bytes() do 'select CRYPTO_RNG_DEFAULT', which does 'select CRYPTO_DRBG_MENU'. However, due to the change in how crypto_stdrng_get_bytes() is implemented, CRYPTO_DRBG_MENU is now needed only when CRYPTO_FIPS. But, 'select CRYPTO_DRBG_MENU if CRYPTO_FIPS' would cause a recursive dependency, since CRYPTO_FIPS 'depends on CRYPTO_DRBG'. Solve this by just making CRYPTO_FIPS depend on CRYPTO_DRBG=y (rather than CRYPTO_DRBG i.e. CRYPTO_DRBG=y || CRYPTO_DRBG=m). The distros that use CRYPTO_FIPS=y already set CRYPTO_DRBG=y anyway, which makes sense. This makes the CRYPTO_RNG_DEFAULT symbol (and its corresponding selection of CRYPTO_DRBG_MENU) unnecessary. A later commit removes it. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: rng - Make crypto_stdrng_get_bytes() use normal RNG in non-FIPS modeEric Biggers1-2/+2
"stdrng" is needed only in "FIPS mode". Therefore, make crypto_stdrng_get_bytes() delegate to either the normal Linux RNG or to "stdrng", depending on the current mode. This will eliminate the need to built the SP800-90A DRBG and its dependencies into CRYPTO_FIPS=n kernels. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: rng - Unexport "default RNG" symbolsEric Biggers1-6/+3
Now that crypto_default_rng, crypto_get_default_rng(), and crypto_put_default_rng() have no users outside crypto/rng.c itself, unexport them and make them static. Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: geniv - Use crypto_stdrng_get_bytes()Eric Biggers1-7/+1
Replace the sequence of crypto_get_default_rng(), crypto_rng_get_bytes(), and crypto_put_default_rng() with the equivalent helper function crypto_stdrng_get_bytes(). Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-04-03crypto: ecc - Use crypto_stdrng_get_bytes()Eric Biggers1-8/+3
Replace the sequence of crypto_get_default_rng(), crypto_rng_get_bytes(), and crypto_put_default_rng() with the equivalent helper function crypto_stdrng_get_bytes(). Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>