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2016-05-17Merge branch 'linus' of ↵Linus Torvalds5-46/+273
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Crypto self tests can now be disabled at boot/run time. - Add async support to algif_aead. Algorithms: - A large number of fixes to MPI from Nicolai Stange. - Performance improvement for HMAC DRBG. Drivers: - Use generic crypto engine in omap-des. - Merge ppc4xx-rng and crypto4xx drivers. - Fix lockups in sun4i-ss driver by disabling IRQs. - Add DMA engine support to ccp. - Reenable talitos hash algorithms. - Add support for Hisilicon SoC RNG. - Add basic crypto driver for the MXC SCC. Others: - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits) crypto: qat - change the adf_ctl_stop_devices to void crypto: caam - fix caam_jr_alloc() ret code crypto: vmx - comply with ABIs that specify vrsave as reserved. crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime. crypto: ccp - constify ccp_actions structure crypto: marvell/cesa - Use dma_pool_zalloc crypto: qat - make adf_vf_isr.c dependant on IOV config crypto: qat - Fix typo in comments lib: asn1_decoder - add MODULE_LICENSE("GPL") crypto: omap-sham - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Use dma_request_chan() for requesting DMA channel crypto: omap-aes - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Integrate with the crypto engine framework crypto: s5p-sss - fix incorrect usage of scatterlists api crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks crypto: s5p-sss - Use common BIT macro crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register() crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init() crypto: talitos - fix ahash algorithms registration crypto: ccp - Ensure all dependencies are specified ...
2016-05-09crypto: testmgr - Use kmalloc memory for RSA inputHerbert Xu1-5/+22
As akcipher uses an SG interface, you must not use vmalloc memory as input for it. This patch fixes testmgr to copy the vmalloc test vectors to kmalloc memory before running the test. This patch also removes a superfluous sg_virt call in do_test_rsa. Cc: <stable@vger.kernel.org> Reported-by: Anatoly Pugachev <matorola@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-05crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime.Richard W.M. Jones1-0/+9
Running self-tests for a short-lived KVM VM takes 28ms on my laptop. This commit adds a flag 'cryptomgr.notests' which allows them to be disabled. However if fips=1 as well, we ignore this flag as FIPS mode mandates that the self-tests are run. Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-05crypto: rsa - select crypto mgr dependencyTadeusz Struk1-0/+1
The pkcs1pad template needs CRYPTO_MANAGER so it needs to be explicitly selected by CRYPTO_RSA. Reported-by: Jamie Heilman <jamie@audible.transient.net> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-05crypto: hash - Fix page length clamping in hash walkHerbert Xu1-1/+2
The crypto hash walk code is broken when supplied with an offset greater than or equal to PAGE_SIZE. This patch fixes it by adjusting walk->pg and walk->offset when this happens. Cc: <stable@vger.kernel.org> Reported-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Herbert Xu1-6/+6
Merge the crypto tree to pull in the qat adf_init_pf_wq change.
2016-04-15crypto: lzo - get rid of superfluous __GFP_REPEATMichal Hocko1-1/+1
__GFP_REPEAT has a rather weak semantic but since it has been introduced around 2.6.12 it has been ignored for low order allocations. lzo_init uses __GFP_REPEAT to allocate LZO1X_MEM_COMPRESS 16K. This is order 3 allocation request and __GFP_REPEAT is ignored for this size as well as all <= PAGE_ALLOC_COSTLY requests. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-crypto@vger.kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-15crypto: rsa-pkcs1pad - fix dst lenTadeusz Struk1-6/+6
The output buffer length has to be at least as big as the key_size. It is then updated to the actual output size by the implementation. Cc: <stable@vger.kernel.org> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05crypto: drbg - set HMAC key only when alteredStephan Mueller1-14/+25
The HMAC implementation allows setting the HMAC key independently from the hashing operation. Therefore, the key only needs to be set when a new key is generated. This patch increases the speed of the HMAC DRBG by at least 35% depending on the use case. The patch is fully CAVS tested. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05PKCS#7: fix missing break on OID_sha224 caseColin Ian King1-0/+1
The OID_sha224 case is missing a break and it falls through to the -ENOPKG error default. Since HASH_ALGO_SHA224 seems to be supported, this looks like an unintentional missing break. Fixes: 07f081fb5057 ("PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them") Cc: <stable@vger.kernel.org> # 4.2+ Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05crypto: af_alg - add async support to algif_aeadTadeusz Struk1-31/+237
Following the async change for algif_skcipher this patch adds similar async read to algif_aead. changes in v3: - add call to aead_reset_ctx directly from aead_put_sgl instead of calling them separatelly one after the other - remove wait from aead_sock_destruct function as it is not needed when sock_hold is used changes in v2: - change internal data structures from fixed size arrays, limited to RSGL_MAX_ENTRIES, to linked list model with no artificial limitation. - use sock_kmalloc instead of kmalloc for memory allocation - use sock_hold instead of separate atomic ctr to wait for outstanding request Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-03-30Merge branch 'linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fix from Herbert Xu: "This fixes a bug in pkcs7_validate_trust and its users where the output value may in fact be taken from uninitialised memory" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument
2016-03-23PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argumentNicolai Stange1-0/+2
Despite what the DocBook comment to pkcs7_validate_trust() says, the *_trusted argument is never set to false. pkcs7_validate_trust() only positively sets *_trusted upon encountering a trusted PKCS#7 SignedInfo block. This is quite unfortunate since its callers, system_verify_data() for example, depend on pkcs7_validate_trust() clearing *_trusted on non-trust. Indeed, UBSAN splats when attempting to load the uninitialized local variable 'trusted' from system_verify_data() in pkcs7_validate_trust(): UBSAN: Undefined behaviour in crypto/asymmetric_keys/pkcs7_trust.c:194:14 load of value 82 is not a valid value for type '_Bool' [...] Call Trace: [<ffffffff818c4d35>] dump_stack+0xbc/0x117 [<ffffffff818c4c79>] ? _atomic_dec_and_lock+0x169/0x169 [<ffffffff8194113b>] ubsan_epilogue+0xd/0x4e [<ffffffff819419fa>] __ubsan_handle_load_invalid_value+0x111/0x158 [<ffffffff819418e9>] ? val_to_string.constprop.12+0xcf/0xcf [<ffffffff818334a4>] ? x509_request_asymmetric_key+0x114/0x370 [<ffffffff814b83f0>] ? kfree+0x220/0x370 [<ffffffff818312c2>] ? public_key_verify_signature_2+0x32/0x50 [<ffffffff81835e04>] pkcs7_validate_trust+0x524/0x5f0 [<ffffffff813c391a>] system_verify_data+0xca/0x170 [<ffffffff813c3850>] ? top_trace_array+0x9b/0x9b [<ffffffff81510b29>] ? __vfs_read+0x279/0x3d0 [<ffffffff8129372f>] mod_verify_sig+0x1ff/0x290 [...] The implication is that pkcs7_validate_trust() effectively grants trust when it really shouldn't have. Fix this by explicitly setting *_trusted to false at the very beginning of pkcs7_validate_trust(). Cc: <stable@vger.kernel.org> Signed-off-by: Nicolai Stange <nicstange@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-03-19Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-1/+1
Merge second patch-bomb from Andrew Morton: - a couple of hotfixes - the rest of MM - a new timer slack control in procfs - a couple of procfs fixes - a few misc things - some printk tweaks - lib/ updates, notably to radix-tree. - add my and Nick Piggin's old userspace radix-tree test harness to tools/testing/radix-tree/. Matthew said it was a godsend during the radix-tree work he did. - a few code-size improvements, switching to __always_inline where gcc screwed up. - partially implement character sets in sscanf * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits) sscanf: implement basic character sets lib/bug.c: use common WARN helper param: convert some "on"/"off" users to strtobool lib: add "on"/"off" support to kstrtobool lib: update single-char callers of strtobool() lib: move strtobool() to kstrtobool() include/linux/unaligned: force inlining of byteswap operations include/uapi/linux/byteorder, swab: force inlining of some byteswap operations include/asm-generic/atomic-long.h: force inlining of some atomic_long operations usb: common: convert to use match_string() helper ide: hpt366: convert to use match_string() helper ata: hpt366: convert to use match_string() helper power: ab8500: convert to use match_string() helper power: charger_manager: convert to use match_string() helper drm/edid: convert to use match_string() helper pinctrl: convert to use match_string() helper device property: convert to use match_string() helper lib/string: introduce match_string() helper radix-tree tests: add test for radix_tree_iter_next radix-tree tests: add regression3 test ...
2016-03-18mm/page_ref: add tracepoint to track down page reference manipulationJoonsoo Kim1-1/+1
CMA allocation should be guaranteed to succeed by definition, but, unfortunately, it would be failed sometimes. It is hard to track down the problem, because it is related to page reference manipulation and we don't have any facility to analyze it. This patch adds tracepoints to track down page reference manipulation. With it, we can find exact reason of failure and can fix the problem. Following is an example of tracepoint output. (note: this example is stale version that printing flags as the number. Recent version will print it as human readable string.) <...>-9018 [004] 92.678375: page_ref_set: pfn=0x17ac9 flags=0x0 count=1 mapcount=0 mapping=(nil) mt=4 val=1 <...>-9018 [004] 92.678378: kernel_stack: => get_page_from_freelist (ffffffff81176659) => __alloc_pages_nodemask (ffffffff81176d22) => alloc_pages_vma (ffffffff811bf675) => handle_mm_fault (ffffffff8119e693) => __do_page_fault (ffffffff810631ea) => trace_do_page_fault (ffffffff81063543) => do_async_page_fault (ffffffff8105c40a) => async_page_fault (ffffffff817581d8) [snip] <...>-9018 [004] 92.678379: page_ref_mod: pfn=0x17ac9 flags=0x40048 count=2 mapcount=1 mapping=0xffff880015a78dc1 mt=4 val=1 [snip] ... ... <...>-9131 [001] 93.174468: test_pages_isolated: start_pfn=0x17800 end_pfn=0x17c00 fin_pfn=0x17ac9 ret=fail [snip] <...>-9018 [004] 93.174843: page_ref_mod_and_test: pfn=0x17ac9 flags=0x40068 count=0 mapcount=0 mapping=0xffff880015a78dc1 mt=4 val=-1 ret=1 => release_pages (ffffffff8117c9e4) => free_pages_and_swap_cache (ffffffff811b0697) => tlb_flush_mmu_free (ffffffff81199616) => tlb_finish_mmu (ffffffff8119a62c) => exit_mmap (ffffffff811a53f7) => mmput (ffffffff81073f47) => do_exit (ffffffff810794e9) => do_group_exit (ffffffff81079def) => SyS_exit_group (ffffffff81079e74) => entry_SYSCALL_64_fastpath (ffffffff817560b6) This output shows that problem comes from exit path. In exit path, to improve performance, pages are not freed immediately. They are gathered and processed by batch. During this process, migration cannot be possible and CMA allocation is failed. This problem is hard to find without this page reference tracepoint facility. Enabling this feature bloat kernel text 30 KB in my configuration. text data bss dec hex filename 12127327 2243616 1507328 15878271 f2487f vmlinux_disabled 12157208 2258880 1507328 15923416 f2f8d8 vmlinux_enabled Note that, due to header file dependency problem between mm.h and tracepoint.h, this feature has to open code the static key functions for tracepoints. Proposed by Steven Rostedt in following link. https://lkml.org/lkml/2015/12/9/699 [arnd@arndb.de: crypto/async_pq: use __free_page() instead of put_page()] [iamjoonsoo.kim@lge.com: fix build failure for xtensa] [akpm@linux-foundation.org: tweak Kconfig text, per Vlastimil] Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-17Merge branch 'next' of ↵Linus Torvalds15-515/+327
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security layer updates from James Morris: "There are a bunch of fixes to the TPM, IMA, and Keys code, with minor fixes scattered across the subsystem. IMA now requires signed policy, and that policy is also now measured and appraised" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (67 commits) X.509: Make algo identifiers text instead of enum akcipher: Move the RSA DER encoding check to the crypto layer crypto: Add hash param to pkcs1pad sign-file: fix build with CMS support disabled MAINTAINERS: update tpmdd urls MODSIGN: linux/string.h should be #included to get memcpy() certs: Fix misaligned data in extra certificate list X.509: Handle midnight alternative notation in GeneralizedTime X.509: Support leap seconds Handle ISO 8601 leap seconds and encodings of midnight in mktime64() X.509: Fix leap year handling again PKCS#7: fix unitialized boolean 'want' firmware: change kernel read fail to dev_dbg() KEYS: Use the symbol value for list size, updated by scripts/insert-sys-cert KEYS: Reserve an extra certificate symbol for inserting without recompiling modsign: hide openssl output in silent builds tpm_tis: fix build warning with tpm_tis_resume ima: require signed IMA policy ima: measure and appraise the IMA policy itself ima: load policy using path ...
2016-03-17Merge branch 'linus' of ↵Linus Torvalds18-1354/+585
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "Here is the crypto update for 4.6: API: - Convert remaining crypto_hash users to shash or ahash, also convert blkcipher/ablkcipher users to skcipher. - Remove crypto_hash interface. - Remove crypto_pcomp interface. - Add crypto engine for async cipher drivers. - Add akcipher documentation. - Add skcipher documentation. Algorithms: - Rename crypto/crc32 to avoid name clash with lib/crc32. - Fix bug in keywrap where we zero the wrong pointer. Drivers: - Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver. - Add PIC32 hwrng driver. - Support BCM6368 in bcm63xx hwrng driver. - Pack structs for 32-bit compat users in qat. - Use crypto engine in omap-aes. - Add support for sama5d2x SoCs in atmel-sha. - Make atmel-sha available again. - Make sahara hashing available again. - Make ccp hashing available again. - Make sha1-mb available again. - Add support for multiple devices in ccp. - Improve DMA performance in caam. - Add hashing support to rockchip" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits) crypto: qat - remove redundant arbiter configuration crypto: ux500 - fix checks of error code returned by devm_ioremap_resource() crypto: atmel - fix checks of error code returned by devm_ioremap_resource() crypto: qat - Change the definition of icp_qat_uof_regtype hwrng: exynos - use __maybe_unused to hide pm functions crypto: ccp - Add abstraction for device-specific calls crypto: ccp - CCP versioning support crypto: ccp - Support for multiple CCPs crypto: ccp - Remove check for x86 family and model crypto: ccp - memset request context to zero during import lib/mpi: use "static inline" instead of "extern inline" lib/mpi: avoid assembler warning hwrng: bcm63xx - fix non device tree compatibility crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode. crypto: qat - The AE id should be less than the maximal AE number lib/mpi: Endianness fix crypto: rockchip - add hash support for crypto engine in rk3288 crypto: xts - fix compile errors crypto: doc - add skcipher API documentation crypto: doc - update AEAD AD handling ...
2016-03-04X.509: Make algo identifiers text instead of enumDavid Howells8-67/+46
Make the identifier public key and digest algorithm fields text instead of enum. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-03-04akcipher: Move the RSA DER encoding check to the crypto layerDavid Howells4-243/+93
Move the RSA EMSA-PKCS1-v1_5 encoding from the asymmetric-key public_key subtype to the rsa crypto module's pkcs1pad template. This means that the public_key subtype no longer has any dependencies on public key type. To make this work, the following changes have been made: (1) The rsa pkcs1pad template is now used for RSA keys. This strips off the padding and returns just the message hash. (2) In a previous patch, the pkcs1pad template gained an optional second parameter that, if given, specifies the hash used. We now give this, and pkcs1pad checks the encoded message E(M) for the EMSA-PKCS1-v1_5 encoding and verifies that the correct digest OID is present. (3) The crypto driver in crypto/asymmetric_keys/rsa.c is now reduced to something that doesn't care about what the encryption actually does and and has been merged into public_key.c. (4) CONFIG_PUBLIC_KEY_ALGO_RSA is gone. Module signing must set CONFIG_CRYPTO_RSA=y instead. Thoughts: (*) Should the encoding style (eg. raw, EMSA-PKCS1-v1_5) also be passed to the padding template? Should there be multiple padding templates registered that share most of the code? Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-03-04crypto: Add hash param to pkcs1padTadeusz Struk1-26/+156
This adds hash param to pkcs1pad. The pkcs1pad template can work with or without the hash. When hash param is provided then the verify operation will also verify the output against the known digest. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-29X.509: Handle midnight alternative notation in GeneralizedTimeDavid Howells1-1/+1
The ASN.1 GeneralizedTime object carries an ISO 8601 format date and time. The time is permitted to show midnight as 00:00 or 24:00 (the latter being equivalent of 00:00 of the following day). The permitted value is checked in x509_decode_time() but the actual handling is left to mktime64(). Without this patch, certain X.509 certificates will be rejected and could lead to an unbootable kernel. Note that with this patch we also permit any 24:mm:ss time and extend this to UTCTime, which whilst not strictly correct don't permit much leeway in fiddling date strings. Reported-by: Rudolf Polzer <rpolzer@google.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> cc: David Woodhouse <David.Woodhouse@intel.com> cc: John Stultz <john.stultz@linaro.org>
2016-02-29X.509: Support leap secondsDavid Howells1-1/+1
The format of ASN.1 GeneralizedTime seems to be specified by ISO 8601 [X.680 46.3] and this apparently supports leap seconds (ie. the seconds field is 60). It's not entirely clear that ASN.1 expects it, but we can relax the seconds check slightly for GeneralizedTime. This results in us passing a time with sec as 60 to mktime64(), which handles it as being a duplicate of the 0th second of the next minute. We can't really do otherwise without giving the kernel much greater knowledge of where all the leap seconds are. Unfortunately, this would require change the mapping of the kernel's current-time-in-seconds. UTCTime, however, only supports a seconds value in the range 00-59, but for the sake of simplicity allow this with UTCTime also. Without this patch, certain X.509 certificates will be rejected, potentially making a kernel unbootable. Reported-by: Rudolf Polzer <rpolzer@google.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> cc: David Woodhouse <David.Woodhouse@intel.com> cc: John Stultz <john.stultz@linaro.org>
2016-02-29X.509: Fix leap year handling againDavid Howells1-4/+4
There are still a couple of minor issues in the X.509 leap year handling: (1) To avoid doing a modulus-by-400 in addition to a modulus-by-100 when determining whether the year is a leap year or not, I divided the year by 100 after doing the modulus-by-100, thereby letting the compiler do one instruction for both, and then did a modulus-by-4. Unfortunately, I then passed the now-modified year value to mktime64() to construct a time value. Since this isn't a fast path and since mktime64() does a bunch of divisions, just condense down to "% 400". It's also easier to read. (2) The default month length for any February where the year doesn't divide by four exactly is obtained from the month_length[] array where the value is 29, not 28. This is fixed by altering the table. Reported-by: Rudolf Polzer <rpolzer@google.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> cc: stable@vger.kernel.org
2016-02-29PKCS#7: fix unitialized boolean 'want'Colin Ian King1-1/+1
The boolean want is not initialized and hence garbage. The default should be false (later it is only set to true on tne sinfo->authattrs check). Found with static analysis using CoverityScan Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David Howells <dhowells@redhat.com>
2016-02-27crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode.Marcus Meissner1-0/+16
RFC 3686 CTR in various authenc methods. rfc3686(ctr(aes)) is already marked fips compliant, so these should be fine. Signed-off-by: Marcus Meissner <meissner@suse.de> Acked-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-16crypto: xts - consolidate sanity check for keysStephan Mueller1-8/+3
The patch centralizes the XTS key check logic into the service function xts_check_key which is invoked from the different XTS implementations. With this, the XTS implementations in ARM, ARM64, PPC and S390 have now a sanity check for the XTS keys similar to the other arches. In addition, this service function received a check to ensure that the key != the tweak key which is mandated by FIPS 140-2 IG A.9. As the check is not present in the standards defining XTS, it is only enforced in FIPS mode of the kernel. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-16crypto: testmgr - mark authenticated ctr(aes) also as FIPS ableMarcus Meissner1-0/+16
(2nd try that adds missing , to build.) Signed-off-by: Marcus Meissner <meissner@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-10crypto: KEYS: convert public key and digsig asym to the akcipher apiTadeusz Struk11-271/+124
This patch converts the module verification code to the new akcipher API. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David Howells <dhowells@redhat.com>
2016-02-09crypto: keys - Revert "convert public key to akcipher api"Herbert Xu11-124/+272
This needs to go through the security tree so I'm reverting the patches for now. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: testmgr - mark more algorithms as FIPS compliantMarcus Meissner1-0/+7
Some more authenc() wrapped algorithms are FIPS compliant, tag them as such. Signed-off-by: Marcus Meissner <meissner@suse.de> Acked-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: testmgr - fix out of bound read in __test_aead()Jerome Marchand1-2/+3
__test_aead() reads MAX_IVLEN bytes from template[i].iv, but the actual length of the initialisation vector can be shorter. The length of the IV is already calculated earlier in the function. Let's just reuses that. Also the IV length is currently calculated several time for no reason. Let's fix that too. This fix an out-of-bound error detected by KASan. Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: testmgr - Add a test case for import()/export()Wang, Rui Y1-0/+133
Modify __test_hash() so that hash import/export can be tested from within the kernel. The test is unconditionally done when a struct hash_testvec has its .np > 1. v3: make the test unconditional v2: Leverage template[i].np as suggested by Tim Chen Signed-off-by: Rui Wang <rui.y.wang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: asymmetric_keys - convert public key and digsig asym to the akcipher apiTadeusz Struk11-272/+124
This patch converts the module verification code to the new akcipher API. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: hash - Remove crypto_hash interfaceHerbert Xu2-165/+0
This patch removes all traces of the crypto_hash interface, now that everyone has switched over to shash or ahash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: tcrypt - Use ahashHerbert Xu1-224/+15
This patch removes the last user of the obsolete crypto_hash interface, tcrypt, by simply switching it over to ahash. In fact it already has all the code there so it's just a matter of calling the ahash speed test code with the right mask. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: algif_skcipher - Do not set MAY_BACKLOG on the async pathHerbert Xu1-2/+3
The async path cannot use MAY_BACKLOG because it is not meant to block, which is what MAY_BACKLOG does. On the other hand, both the sync and async paths can make use of MAY_SLEEP. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: algif_skcipher - Do not dereference ctx without socket lockHerbert Xu1-4/+11
Any access to non-constant bits of the private context must be done under the socket lock, in particular, this includes ctx->req. This patch moves such accesses under the lock, and fetches the tfm from the parent socket which is guaranteed to be constant, rather than from ctx->req. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-06crypto: algif_skcipher - Do not assume that req is unchangedHerbert Xu1-32/+28
The async path in algif_skcipher assumes that the crypto completion function will be called with the original request. This is not necessarily the case. In fact there is no need for this anyway since we already embed information into the request with struct skcipher_async_req. This patch adds a pointer to that struct and then passes it as the data to the callback function. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
2016-02-06crypto: user - lock crypto_alg_list on alg dumpMathias Krause1-1/+5
We miss to take the crypto_alg_sem semaphore when traversing the crypto_alg_list for CRYPTO_MSG_GETALG dumps. This allows a race with crypto_unregister_alg() removing algorithms from the list while we're still traversing it, thereby leading to a use-after-free as show below: [ 3482.071639] general protection fault: 0000 [#1] SMP [ 3482.075639] Modules linked in: aes_x86_64 glue_helper lrw ablk_helper cryptd gf128mul ipv6 pcspkr serio_raw virtio_net microcode virtio_pci virtio_ring virtio sr_mod cdrom [last unloaded: aesni_intel] [ 3482.075639] CPU: 1 PID: 11065 Comm: crconf Not tainted 4.3.4-grsec+ #126 [ 3482.075639] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 3482.075639] task: ffff88001cd41a40 ti: ffff88001cd422c8 task.ti: ffff88001cd422c8 [ 3482.075639] RIP: 0010:[<ffffffff93722bd3>] [<ffffffff93722bd3>] strncpy+0x13/0x30 [ 3482.075639] RSP: 0018:ffff88001f713b60 EFLAGS: 00010202 [ 3482.075639] RAX: ffff88001f6c4430 RBX: ffff88001f6c43a0 RCX: ffff88001f6c4430 [ 3482.075639] RDX: 0000000000000040 RSI: fefefefefefeff16 RDI: ffff88001f6c4430 [ 3482.075639] RBP: ffff88001f713b60 R08: ffff88001f6c4470 R09: ffff88001f6c4480 [ 3482.075639] R10: 0000000000000002 R11: 0000000000000246 R12: ffff88001ce2aa28 [ 3482.075639] R13: ffff880000093700 R14: ffff88001f5e4bf8 R15: 0000000000003b20 [ 3482.075639] FS: 0000033826fa2700(0000) GS:ffff88001e900000(0000) knlGS:0000000000000000 [ 3482.075639] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3482.075639] CR2: ffffffffff600400 CR3: 00000000139ec000 CR4: 00000000001606f0 [ 3482.075639] Stack: [ 3482.075639] ffff88001f713bd8 ffffffff936ccd00 ffff88001e5c4200 ffff880000093700 [ 3482.075639] ffff88001f713bd0 ffffffff938ef4bf 0000000000000000 0000000000003b20 [ 3482.075639] ffff88001f5e4bf8 ffff88001f5e4848 0000000000000000 0000000000003b20 [ 3482.075639] Call Trace: [ 3482.075639] [<ffffffff936ccd00>] crypto_report_alg+0xc0/0x3e0 [ 3482.075639] [<ffffffff938ef4bf>] ? __alloc_skb+0x16f/0x300 [ 3482.075639] [<ffffffff936cd08a>] crypto_dump_report+0x6a/0x90 [ 3482.075639] [<ffffffff93935707>] netlink_dump+0x147/0x2e0 [ 3482.075639] [<ffffffff93935f99>] __netlink_dump_start+0x159/0x190 [ 3482.075639] [<ffffffff936ccb13>] crypto_user_rcv_msg+0xc3/0x130 [ 3482.075639] [<ffffffff936cd020>] ? crypto_report_alg+0x3e0/0x3e0 [ 3482.075639] [<ffffffff936cc4b0>] ? alg_test_crc32c+0x120/0x120 [ 3482.075639] [<ffffffff93933145>] ? __netlink_lookup+0xd5/0x120 [ 3482.075639] [<ffffffff936cca50>] ? crypto_add_alg+0x1d0/0x1d0 [ 3482.075639] [<ffffffff93938141>] netlink_rcv_skb+0xe1/0x130 [ 3482.075639] [<ffffffff936cc4f8>] crypto_netlink_rcv+0x28/0x40 [ 3482.075639] [<ffffffff939375a8>] netlink_unicast+0x108/0x180 [ 3482.075639] [<ffffffff93937c21>] netlink_sendmsg+0x541/0x770 [ 3482.075639] [<ffffffff938e31e1>] sock_sendmsg+0x21/0x40 [ 3482.075639] [<ffffffff938e4763>] SyS_sendto+0xf3/0x130 [ 3482.075639] [<ffffffff93444203>] ? bad_area_nosemaphore+0x13/0x20 [ 3482.075639] [<ffffffff93444470>] ? __do_page_fault+0x80/0x3a0 [ 3482.075639] [<ffffffff939d80cb>] entry_SYSCALL_64_fastpath+0x12/0x6e [ 3482.075639] Code: 88 4a ff 75 ed 5d 48 0f ba 2c 24 3f c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 85 d2 48 89 f8 48 89 f9 4c 8d 04 17 48 89 e5 74 15 <0f> b6 16 80 fa 01 88 11 48 83 de ff 48 83 c1 01 4c 39 c1 75 eb [ 3482.075639] RIP [<ffffffff93722bd3>] strncpy+0x13/0x30 To trigger the race run the following loops simultaneously for a while: $ while : ; do modprobe aesni-intel; rmmod aesni-intel; done $ while : ; do crconf show all > /dev/null; done Fix the race by taking the crypto_alg_sem read lock, thereby preventing crypto_unregister_alg() from modifying the algorithm list during the dump. This bug has been detected by the PaX memory sanitize feature. Cc: stable@vger.kernel.org Signed-off-by: Mathias Krause <minipli@googlemail.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: PaX Team <pageexec@freemail.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-01crypto: keywrap - memzero the correct memoryDan Carpenter1-2/+2
We're clearing the wrong memory. The memory corruption is likely harmless because we weren't going to use that stack memory again but not zeroing is a potential information leak. Fixes: e28facde3c39 ('crypto: keywrap - add key wrapping block chaining mode') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-01crypto: engine - Introduce the block request crypto engine frameworkBaolin Wang3-0/+359
Now block cipher engines need to implement and maintain their own queue/thread for processing requests, moreover currently helpers provided for only the queue itself (in crypto_enqueue_request() and crypto_dequeue_request()) but they don't help with the mechanics of driving the hardware (things like running the request immediately, DMA map it or providing a thread to process the queue in) even though a lot of that code really shouldn't vary that much from device to device. Thus this patch provides a mechanism for pushing requests to the hardware as it becomes free that drivers could use. And this framework is patterned on the SPI code and has worked out well there. (https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ drivers/spi/spi.c?id=ffbbdd21329f3e15eeca6df2d4bc11c04d9d91c0) Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-30crypto: crc32 - Rename generic implementationHerbert Xu2-2/+3
The generic crc32 implementation is currently called crc32. This is a problem because it clashes with the lib implementation of crc32. This patch renames the crypto crc32 to crc32_generic so that it is consistent with crc32c. An alias for the driver is also added. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-30crypto: mcryptd - Fix load failureWang, Rui Y1-0/+1
mcryptd_create_hash() fails by returning -EINVAL, causing any driver using mcryptd to fail to load. It is because it needs to set its statesize properly. Signed-off-by: Rui Wang <rui.y.wang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-30crypto: algif_hash - wait for crypto_ahash_init() to completeWang, Rui Y1-1/+3
hash_sendmsg/sendpage() need to wait for the completion of crypto_ahash_init() otherwise it can cause panic. Cc: stable@vger.kernel.org Signed-off-by: Rui Wang <rui.y.wang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-27crypto: jitterentropy - always select CRYPTO_RNGArnd Bergmann1-0/+1
When building the jitterentropy driver by itself, we get a link error when CRYPTO_RNG is not enabled as well: crypto/built-in.o: In function `jent_mod_init': jitterentropy-kcapi.c:(.init.text+0x98): undefined reference to `crypto_register_rng' crypto/built-in.o: In function `jent_mod_exit': jitterentropy-kcapi.c:(.exit.text+0x60): undefined reference to `crypto_unregister_rng' This adds a 'select CRYPTO_RNG' to CRYPTO_JITTERENTROPY to ensure the API is always there when it's used, not just when DRBG is also enabled. CRYPTO_DRBG would set it implicitly through CRYPTO_JITTERENTROPY now, but this leaves it in place to make it explicit what the driver does. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-27crypto: compress - remove unused pcomp interfaceJoonsoo Kim6-884/+0
It is unused now, so remove it. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-27crypto: shash - Fix has_key settingHerbert Xu1-4/+3
The has_key logic is wrong for shash algorithms as they always have a setkey function. So we should instead be testing against shash_no_setkey. Fixes: a5596d633278 ("crypto: hash - Add crypto_ahash_has_setkey") Cc: stable@vger.kernel.org Reported-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Stephan Mueller <smueller@chronox.de>
2016-01-26crypto: ghash,poly1305 - select CRYPTO_HASH where neededArnd Bergmann1-0/+2
The ghash and poly1305 hash implementations can be enabled when CONFIG_CRYPTO_HASH is turned off, causing a link error: crypto/built-in.o: In function `ghash_mod_init': (.init.text+0xd0): undefined reference to `crypto_register_shash' crypto/built-in.o: In function `ghash_mod_exit': (.exit.text+0xb4): undefined reference to `crypto_unregister_shash' crypto/built-in.o: In function `poly1305_mod_init': (.init.text+0xb4): undefined reference to `crypto_register_shash' crypto/built-in.o: In function `poly1305_mod_exit': (.exit.text+0x98): undefined reference to `crypto_unregister_shash' This adds an explicit 'select', like all other hashes have it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-25crypto: hash - Add crypto_has_ahash helperHerbert Xu1-0/+6
This patch adds the helper crypto_has_ahash which should replace crypto_has_hash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-25crypto: api - Add crypto_type_has_alg helperHerbert Xu2-0/+18
This patch adds the helper crypto_type_has_alg which is meant to replace crypto_has_alg for new-style crypto types. Rather than hard-coding type/mask information they're now retrieved from the crypto_type object. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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