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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Add THREAD_INFO_IN_TASK implementation
- Add build salt to the vDSO
- Add some BPF JIT inline helpers
- Update DTS for I2C clocks and clock-frequency
- Some bug fixes and other small changes
* tag 'loongarch-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
selftests/bpf: Test jited inline of bpf_get_smp_processor_id() for LoongArch
selftests/bpf: Test jited inline of bpf_get_current_task() for LoongArch
selftests/bpf: Add __arch_loongarch to limit test cases for LoongArch
selftests/bpf: Add get_preempt_count() support for LoongArch
LoongArch: dts: Add i2c clocks and clock-frequency properties to LS2K2000
LoongArch: dts: Add i2c clocks and clock-frequency properties to LS2K1000
LoongArch: dts: Add i2c clocks and clock-frequency properties to LS2K0500
LoongArch: BPF: Inline bpf_get_smp_processor_id() helper
LoongArch: BPF: Inline bpf_get_current_task/_btf() helpers
LoongArch: BPF: Fix off-by-one error in tail call
LoongArch: BPF: Fix outdated tail call comments
LoongArch: Add build salt to the vDSO
LoongArch: Fix nr passing in set_direct_map_valid_noflush()
LoongArch: Fix missing dirty page tracking in {pte,pmd}_wrprotect()
LoongArch: Move struct kimage forward declaration before use
LoongArch: Report dying CPU to RCU in stop_this_cpu()
LoongArch: Add PIO for early access before ACPI PCI root register
LoongArch: Add THREAD_INFO_IN_TASK implementation
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Pull bpf fixes from Alexei Starovoitov:
- Fix effective prog array index with BPF_F_PREORDER (Amery Hung)
- Zero-initialize the fib lookup flow struct (Avinash Duduskar)
- Disable xfrm_decode_session hook attachment (Bradley Morgan)
- Allow type tag BTF records to succeed other modifier records (Emil
Tsalapatis)
- Fix build_id caching in stack_map_get_build_id_offset() (Ihor
Solodrai)
- Add missing access_ok call to copy_user_syms (Jiri Olsa)
- Fix stack slot index in nospec checks (Nuoqi Gui)
- Preserve pointer spill metadata during half-slot cleanup (Nuoqi Gui)
- Fix partial copy of non-linear test_run output (Sun Jian)
- Fix BPF_PROG_ASSOC_STRUCT_OPS last field check (Thiébaud Weksteen)
- Reset register bounds before narrowing retval range (Tristan Madani)
- Fix vmlinux BTF leak in bpftool cgroup commands (Yichong Chen)
- Guard error writes in conntrack kfuncs (Yiyang Chen)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Disable xfrm_decode_session hook attachment
selftests/bpf: Add test for stale bounds on LSM retval context load
bpf: Reset register bounds before narrowing retval range in check_mem_access()
selftests/bpf: Cover small conntrack opts error writes
bpf: Guard conntrack opts error writes
selftests/bpf: Cover half-slot cleanup of pointer spills
bpf: Preserve pointer spill metadata during half-slot cleanup
selftests/bpf: Test cgroup link replace with BPF_F_PREORDER
bpf: Fix effective prog array index with BPF_F_PREORDER
bpf: Fix BPF_PROG_ASSOC_STRUCT_OPS last field check
bpf: zero-initialize the fib lookup flow struct
bpftool: Fix vmlinux BTF leak in cgroup commands
bpf: Add missing access_ok call to copy_user_syms
bpf: Allow type tag BTF records to succeed other modifier records
bpf: Emit verbose message when prog-specific btf_struct_access rejects a write
bpf: Fix build_id caching in stack_map_get_build_id_offset()
bpf: Fix partial copy of non-linear test_run output
selftests/bpf: Cover stack nospec slot indexing
bpf: Fix stack slot index in nospec checks
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull rtla fixes from Steven Rostedt:
- Fix and cleanup .gitignore
- Fix pgrep filter in get_workload_pids.sh
Fix parsing of kernel thread names in get_workload_pids() helper
function. On some systems pgrep matches kernel thread names including
the brackets (e.g. "[osnoise/0]") and other systems brackets are not
included. Fix the tests to handle both.
* tag 'trace-tools-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rtla/tests: Fix pgrep filter in get_workload_pids.sh
rtla: Fix and clean up .gitignore
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and IPsec.
Current release - regressions:
- do not acquire dev->tx_global_lock in netdev_watchdog_up()
- ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
- fix deadlock in nested UP notifier events
Current release - new code bugs:
- eth:
- cn20k: fix subbank free list indexing for search order
- airoha: fix BQL underflow in shared QDMA TX ring
Previous releases - regressions:
- netfilter:
- flowtable: fix offloaded ct timeout never being extended
- nf_conncount: prevent connlimit drops for early confirmed ct
Previous releases - always broken:
- require CAP_NET_ADMIN in the originating netns when modifying
cross-netns devices
- report NAPI thread PID in the caller's pid namespace
- mac802154: fix dirty frag in in-place crypto for IOT radios
- sctp: hold socket lock when dumping endpoints in sctp_diag, avoid
an overflow
- eth: gve: fix header buffer corruption with header-split and HW-GRO
- af_key: initialize alg_key_len for IPComp states, prevent OOB read"
* tag 'net-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (213 commits)
selftests: bonding: add a test for VLAN propagation over a bonded real device
vlan: defer real device state propagation to netdev_work
net: add the driver-facing netdev_work scheduling API
net: turn the rx_mode work into a generic netdev_work facility
net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
rxrpc: Fix rxrpc_rotate_tx_rotate() to check there's something to rotate
rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)
rxrpc: Fix socket notification race
rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
rxrpc: Fix oob challenge leak in cleanup after notification failure
rxrpc: Fix the reception of a reply packet before data transmission
afs: Fix uncancelled rxrpc OOB message handler
afs: Fix further netns teardown to cancel the preallocation charger
rxrpc: Fix double unlock in rxrpc_recvmsg()
rxrpc: Fix leak of connection from OOB challenge
rxrpc: Fix ACKALL packet handling
net: hns3: differentiate autoneg default values between copper and fiber
net: hns3: fix permanent link down deadlock after reset
net: hns3: refactor MAC autoneg and speed configuration
net: hns3: unify copper port ksettings configuration path
...
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Pull kvm fixes from Paolo Bonzini:
"s390:
- Fix S390_USER_OPEREXEC so it can now be enabled regardless of other
unrelated capabilities
- Fix handling of the _PAGE_UNUSED pte bit that could lead to guest
memory corruption in some scenarios
- A bunch of misc gmap fixes (locking, behaviour under memory
pressure)
- Fix CMMA dirty tracking
x86:
- Tidy up some WARN_ON() and BUG_ON(), replacing them with
WARN_ON_ONCE() or KVM_BUG_ON(). All of these have obviously never
triggered, or somebody would have been annoyed earlier, but still...
- Fix missing interrupt due to stale CR8 intercept
- Add a statistic that can come in handy to debug leaks as well as
the vulnerability to a class of recently-discovered issues
- Do not ask arch/x86/kernel to export
default_cpu_present_to_apicid() just for KVM"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
x86/apic: KVM: Use cpu_physical_id() to get APIC ID of running vCPU for AVIC
KVM: x86/mmu: Expose number of shadow MMU shadow pages as a stat
KVM: x86: Unconditionally recompute CR8 intercept on PPR update
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode
KVM: x86: WARN (once) if RTC pending EOI tracking goes off the rails
KVM: x86: WARN and fail kvm_set_irq() if a PIC or I/O APIC vector is invalid
KVM: x86: Bug the VM, not the kernel, if the ISR count {under,over}flows
KVM: x86/mmu: Bug the VM, not the host kernel, if KVM write-protects upper SPTEs
KVM: x86: Replace BUG_ON() with WARN_ON_ONCE() on "bad" nested GPA translation
KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()
KVM: s390: Return failure in case of failure in kvm_s390_set_cmma_bits()
KVM: s390: selftests: Fix cmma selftest
KVM: s390: Fix cmma dirty tracking
KVM: s390: Fix locking in kvm_s390_set_mem_control()
KVM: s390: Fix handle_{sske,pfmf} under memory pressure
KVM: s390: Fix code typo in gmap_protect_asce_top_level()
KVM: s390: Do not set special large pages dirty
KVM: s390: Fix dat_peek_cmma() overflow
s390/mm: Fix handling of _PAGE_UNUSED pte bit
KVM: s390: Fix typo in UCONTROL documentation
...
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Add a regression test for the VLAN notifier handling that the netdev_work
deferral fixed.
A VLAN's real device propagates its UP/DOWN, MTU and feature changes onto
the VLANs stacked on top of it. This used to be done synchronously from the
real device's notifier and deadlocked when the real device was brought up
while enslaved to a bond (instance lock held across NETDEV_UP) and the VLAN
on top was itself a bond member: the synchronous propagation re-entered the
stack and took the same instance lock again.
The test covers both halves:
- that the deferred UP/DOWN, MTU and feature propagation actually lands on
the VLAN (link state and MTU use an ops-locked dummy, i.e. the deferral
path; features use veth, which exports vlan_features to inherit), and
- that the deadlock-prone topology - a VLAN on a dummy, with the VLAN and
the dummy each enslaved to a different bond - can be built without
hanging.
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260624182018.2445732-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux
Pull more documentation updates from Jonathan Corbet:
"A handful of late-arriving docs fixes, along with one document update
that fell through the cracks before"
* tag 'docs-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux:
docs: tools: Fix typo 'ackward' to 'awkward' in unittest.rst
kdoc: xforms: ignore special static/inline macros
kdoc: xforms_lists: handle DECLARE_PER_CPU() in kernel-doc
MAINTAINERS: Fix regex for kdoc
docs: kgdb: Fix path of driver options
Documentation: tracing: fix typo in events documentation
Docs/driver-api/uio-howto: document mmap_prepare callback
docs/mm: clarify that we are not looking for LLM generated content
kernel-doc: xforms: support __SYSFS_FUNCTION_ALTERNATIVE()
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splice_short grows its pipe with (MAX_FRAGS + 1) * 0x1000 so it can
queue one short vmsplice() buffer for each fragment before draining the
pipe. That assumes 4K pipe buffers.
On 64K-page kernels the request is rounded to 262144 bytes, which
provides only four pipe buffers. The fifth one-byte vmsplice() blocks in
pipe_wait_writable and the test times out before it reaches the TLS path.
Request enough bytes for the same number of pipe buffers using the
runtime page size, and assert that the kernel granted at least that much.
If an unprivileged run cannot raise the pipe above the system
pipe-max-size limit, skip the test because it cannot exercise the
intended path.
Fixes: 3667e9b442b9 ("selftests: tls: add test for short splice due to full skmsg")
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260624134416.3235403-1-nirmoyd@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add the testcase for the jited inline of bpf_get_smp_processor_id(),
only for LoongArch currently.
Here is the test result on LoongArch:
$ sudo ./test_progs -t verifier_jit_inline
#604/1 verifier_jit_inline/inline_bpf_get_current_task:OK
#604/2 verifier_jit_inline/inline_bpf_get_smp_processor_id:OK
#604 verifier_jit_inline:OK
Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Add the jited inline instruction of bpf_get_current_task() for LoongArch
to pass the test case.
Before:
$ sudo ./test_progs -t verifier_jit_inline
#604/1 verifier_jit_inline/inline_bpf_get_current_task:SKIP
#604 verifier_jit_inline:SKIP
Summary: 1/0 PASSED, 1 SKIPPED, 0 FAILED
After:
$ sudo ./test_progs -t verifier_jit_inline
#604/1 verifier_jit_inline/inline_bpf_get_current_task:OK
#604 verifier_jit_inline:OK
Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Make it possible to limit certain tests to LoongArch, just like it is
already done for x86_64, arm64, riscv64, and s390x.
This is a follow up patch of:
commit ee7fe84468b1 ("selftests/bpf: __arch_* macro to limit test cases to specific archs")
commit 1e4e6b9e260d ("selftests/bpf: Add __arch_s390x macro")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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There is no LoongArch support for get_preempt_count() currently and its
fallback path always returns 0, just add it so that bpf_in_interrupt(),
bpf_in_nmi(), bpf_in_hardirq(), bpf_in_serving_softirq(), bpf_in_task()
work for LoongArch as well.
The latest kernels select CONFIG_THREAD_INFO_IN_TASK, it can just read
preempt_count from the thread_info which is embedded within task_struct.
With this patch, "./test_progs -t exe_ctx" passes on LoongArch.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Add a workaround to avoid a possible crash if nf_nat and nft_chain_nat are
compiled built-in and nf_nat fails to register, allowing nft_chain_nat to
access the incorrect pernetns area. This is crash specific of all built-in
compilation. From Matias Krause.
2) Revisit conncount GC optimization for confirmed conntracks, skip GC round
if IPS_ASSURED is set on. This is addressing an issue for corner case
use case scenario involving locally generated traffic. No crash, just a
functionality fix. From Fernando F. Mancera.
3) Validate iph->ihl in flowtable IPIP tunnel support, from Lorenzo Bianconi.
This a sanity check to bounces back malformed IPIP packets to classic
forwarding path.
4) Kdoc fixes for x_tables.h, from Randy Dunlap.
5) Use info->options so nft_synproxy_tcp_options() stays on the same local
snapshot, otherwise eval path can observe inconsistent mix of mss and
timestamps. From Runyu Xiao.
6) Add conntrack_sctp_collision.sh to cover for SCTP INIT collisions.
From Yi Chen.
7) Do not allow NFPROTO_UNSPEC targets if family is NFPROTO_BRIDGE in
nft_compat. This allows to use non-sense targets such as xt_nat leading
to crash. From Florian Westphal.
8) Add a selftest queueing from bridge family. From Florian Westphal.
9) Do not allow to reset a conntrack helper via ctnetlink. This feature
antedates the creation of the conntrack-tools, and it is not used
I don't have a usecase for it, I prefer to remove than fixing it.
10) Add deprecation warning for IPv4 only conntrack helpers for PPTP
and IRC. From Florian Westphal.
11) Store the master tuple in the expectation object and use it,
otherwise SLAB_TYPESAFE_RCU rules allow to display incorrect
master tuple information through ctnetlink.
12) Run expectation eviction when inserting an expectation with no
helper, this is a fix for the nft_ct custom expectation support.
13) Fix nft_ct custom expectation timeouts, userspace provides a
timeout in milliseconds but kernel assumes this comes in seconds.
From Florian Westphal.
14) Cap maximum number of expectations per class to 255 expectations
per master conntrack at helper registration. This is a fix to
restrict the maximum number of expectations per master conntrack
which can be a issue for the new lazy GC expectation approach.
* tag 'nf-26-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_conntrack_helper: cap maximum number of expectation at helper registration
netfilter: nft_ct: expectation timeouts are passed in milliseconds
netfilter: nf_conntrack_expect: run expectation eviction with no helper
netfilter: nf_conntrack_expect: store master_tuple in expectation
netfilter: conntrack: add deprecation warnings for irc and pptp trackers
netfilter: ctnetlink: do not allow to reset helper on existing conntrack
selftests: nft_queue.sh: add a bridge queue test
netfilter: nft_compat: ebtables emulation must reject non-bridge targets
selftests: netfilter: conntrack_sctp_collision.sh: Introduce SCTP INIT collision test
netfilter: nft_synproxy: stop bypassing the priv->info snapshot
netfilter: x_tables.h: fix all kernel-doc warnings
netfilter: flowtable: Validate iph->ihl in nf_flow_ip4_tunnel_proto()
netfilter: nf_conncount: prevent connlimit drops for early confirmed ct
netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()
====================
Link: https://patch.msgid.link/20260623221548.701545-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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drm_ras includes drm/drm_ras.h, which is a relatively new header not yet
shipped in most distro kernel-header packages. Without the explicit
entry, the build might fail with a message like this:
drm_ras-user.c:19:10: error: ‘DRM_RAS_CMD_CLEAR_ERROR_COUNTER’ \
undeclared here (not in a function); did you mean \
‘DRM_RAS_CMD_GET_ERROR_COUNTER’
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://patch.msgid.link/20260623070818.2161810-1-linux@leemhuis.info
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use $(AR) to allow build system to override the archiver tool (e.g.,
when cross-compiling for a different architecture) by setting the AR
environment variable.
GNU Make defaults AR to ar, so this change will not break existing build
environments that do not explicitly set AR.
Fixes: 07c3cc51a085 ("tools: net: package libynl for use in selftests")
Fixes: 86878f14d71a ("tools: ynl: user space helpers")
Signed-off-by: Greg Thelen <gthelen@google.com>
Link: https://patch.msgid.link/20260622161659.145047-1-gthelen@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
* Fix S390_USER_OPEREXEC so it can now be enabled regardless of other
unrelated capabilities
* Fix handling of the _PAGE_UNUSED pte bit that could lead to guest
memory corruption in some scenarios
* A bunch of misc gmap fixes (locking, behaviour under memory pressure)
* Fix CMMA dirty tracking
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The existing cmma selftest depended on the host allocating page tables
for all present memslots. Since the gmap rewrite, memory that is not
accessed by the guest might not have page tables allocated yet.
This caused the test to fail due to a mismatch in the assertion.
Fix by having the guest access also the second half of the test
memslot, thus guaranteeing that its page tables are present.
Fixes: e38c884df921 ("KVM: s390: Switch to new gmap")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260623153331.233784-9-imbrenda@linux.ibm.com>
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There is a possibility that the user_operexec capability
only works if facility bit 74 is enabled. This is now fixed,
but add a selftest to demonstrate that.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260507200836.3500368-3-farman@linux.ibm.com>
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Test that an LWT encapsulation does not silently corrupt XDP metadata
sitting in the skb headroom. Exercise all three LWT dispatch paths:
- BPF LWT xmit prog reserves headroom on the LWT .xmit redirect,
- mpls pushes an MPLS label on the LWT .xmit redirect,
- seg6 in encap mode runs on the LWT .input redirect,
- ioam6 encap inserts an IOAM Hop-by-Hop option on LWT .output redirect.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://patch.msgid.link/20260619-bpf-lwt-drop-skb-metadata-v3-2-71d6a33ab76b@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c contains 7 (for
now) functions that use STATIC_IFN_KUNIT or INLINE_IFN_KUNIT macros for
function qualifiers (static or not, inline or not).
These cause parse warnings from kernel-doc:
Invalid C declaration: Expected identifier in nested name, got keyword:
struct [error at 29]
STATIC_IFN_KUNIT const struct drm_color_lut * __extract_blob_lut (const
struct drm_property_blob *blob, uint32_t *size)
Handle these in kernel-doc to prevent multiple warnings.
Fixes: 647d1fd04652 ("drm/amd/display: Add KUnit test for color helpers")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260612234458.1084156-1-rdunlap@infradead.org>
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POLL_TXQ_FULL temporarily disables shared_umem on TX to exercise the
TX timeout path in isolation.
With shared_umem enabled, TX setup expects RX UMEM to be initialized
first and fails with: "RX UMEM is not initialized before shared-UMEM TX
setup".
Save and restore shared_umem around POLL_TXQ_FULL execution, and restore
it on both success and pkt_stream_replace() failure paths.
Also add an in-code comment explaining why shared_umem is temporarily
disabled in this test.
This keeps timeout setup local and prevents cross-test state leakage.
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://patch.msgid.link/20260616154955.1492560-4-tushar.vyavahare@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Prevent workers from running before XDP program attachment completes.
The previous ordering allowed races between worker startup and setup.
Attach XDP programs before entering traffic validation.
Remove SIGUSR1-based worker termination and use pthread_join() for
thread shutdown so blocking syscalls are not interrupted.
Use barriers only for dual-thread runs so participants match and
teardown ordering stays deterministic.
This removes setup/startup races and stabilizes harness sequencing.
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://patch.msgid.link/20260616154955.1492560-3-tushar.vyavahare@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Stop inferring timeout behavior from RX UMEM initialization state.
That ties timeout semantics to setup internals and obscures intent.
Use test_spec::poll_tmout as the explicit timeout-mode selector in
TX and RX paths.
In RX, treat poll timeout as expected only in timeout mode.
In TX, let send_pkts() own loop completion in non-timeout mode
and use __send_pkts() only for progress and timeout detection.
This makes timeout logic explicit and keeps control flow predictable.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://patch.msgid.link/20260616154955.1492560-2-tushar.vyavahare@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add support for DECLARE_PER_CPU() as a var (variable) as used in
<linux/netfilter/x_tables.h>.
Warning: include/linux/netfilter/x_tables.h:345 function parameter 'seqcount_t' not described in 'DECLARE_PER_CPU'
Warning: include/linux/netfilter/x_tables.h:345 function parameter 'xt_recseq' not described in 'DECLARE_PER_CPU'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260614052452.1557987-1-rdunlap@infradead.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext tree reorg from Tejun Heo:
"Pure source reorganization with no functional change:
- the kernel/sched/ext* files move into a new kernel/sched/ext/
subdirectory
- the headers and sources are made self-contained so editor tooling
can parse each file on its own"
* tag 'sched_ext-for-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Move shared helpers from ext.c into internal.h and cid.h
sched_ext: Make kernel/sched/ext/ sources self-contained for clangd
sched_ext: Move sources under kernel/sched/ext/
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|
Add support for __SYSFS_FUNCTION_ALTERNATIVE() to create a union of its
members (as though CONFIG_CFI is unset).
Fixes these docs build warnings:
WARNING: include/linux/device.h:117 Invalid param: __SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*show)(struct device *dev, struct device_attribute *attr, char *buf)
WARNING: include/linux/device.h:117 struct member '__SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*show' not described in 'device_attribute'
WARNING: include/linux/device.h:117 Invalid param: __SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*store)(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
WARNING: include/linux/device.h:117 struct member '__SYSFS_FUNCTION_ALTERNATIVE( ssize_t (*store' not described in 'device_attribute'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260623190006.406571-1-rdunlap@infradead.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- "khugepaged: add mTHP collapse support" (Nico Pache)
Provide khugepaged with the capability to collapse anonymous memory
regions to mTHPs
- "Remove CONFIG_READ_ONLY_THP_FOR_FS and enable file THP for writable
files" (Zi Yan)
Remove the READ_ONLY_THP_FOR_FS check in file_thp_enabled(), so that
khugepaged and MADV_COLLAPSE can run on filesystems with PMD THP
pagecache support even without READ_ONLY_THP_FOR_FS enabled
- "make MM selftests more CI friendly" (Mike Rapoport)
General fixes and cleanups to the MM selftests. Also move more MM
selftests under the kselftest framework, making them more amenable to
ongoing CI testing
- "selftests/mm: fix failures and robustness improvements" and
"selftests/mm: assorted fixes for hmm-tests" (Sayali Patil)
Fix several issues in MM selftests which were revealed by powerpc 64k
pagesize
* tag 'mm-stable-2026-06-23-08-55' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (118 commits)
Revert "mm: limit filemap_fault readahead to VMA boundaries"
mm/vmscan: pass NULL to trace vmscan node reclaim
mm: use mapping_mapped to simplify the code
selftests/mm: fix exclusive_cow test fork() handling
selftests/mm: remove hardcoded THP sizing assumptions in hmm tests
selftests/mm: allow PUD-level entries in compound testcase of hmm tests
mm/gup_test: reject wrapped user ranges
mm/page_frag: reject invalid CPUs in page_frag_test
mm/damon/core: always put unsuccessfully committed target pids
mm: page_isolation: avoid unsafe folio reads while scanning compound pages
mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()
selftests: mm: fix and speedup "droppable" test
mm: merge writeout into pageout
MAINTAINERS: add Hao Ge as reviewer for codetag and alloc_tag
selftests/mm: clarify alternate unmapping in compaction_test
selftests/mm: move hwpoison setup into run_test() and silence modprobe output for memory-failure category
selftests/mm: skip uffd-stress test when nr_pages_per_cpu is zero
selftests/mm: skip uffd-wp-mremap if UFFD write-protect is unsupported
selftests/mm: ensure destination is hugetlb-backed in hugetlb-mremap
selftest/mm: register existing mapping with userfaultfd in hugetlb-mremap
...
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git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools updates from Arnaldo Carvalho de Melo:
- Introduce 'perf inject --aslr' to remap ASLR-randomized addresses in
perf.data files, enabling reproducible analysis across runs with
different address space layouts
- Refactor evsel out of sample processing paths: store evsel in struct
perf_sample and remove the redundant evsel parameter from tool APIs,
tracepoint handlers, hist entry iterators, and db-export, simplifying
the entire tool callback chain
- Switch architecture detection from string-based perf_env__arch()
comparisons to the numeric ELF e_machine field across the codebase
(capstone, print_insn, c2c, lock-contention, sort, sample-raw,
machine, header), making cross-analysis more robust
- Overhaul ARM CoreSight ETM tests: add deterministic and named_threads
workloads, speed up basic and disassembly tests, add process
attribution and concurrent threads tests, remove unused workloads and
duplicate tests, queue context packets for the frontend decoder
- Add ARM SPE IMPDEF event decoding for Arm Neoverse N1, store MIDR in
arm_spe_pkt for per-CPU event mapping, handle missing CPU IDs
gracefully
- Refactor libunwind support: remove the libunwind-local backend, make
register reading cross-platform, add RISC-V libunwind support, allow
dynamic selection between libdw and libunwind unwinding at runtime
- Extensive hardening of perf.data parsing against crafted files: add
bounds checks and byte-swap validation for session records, feature
sections, header attributes, BPF metadata, auxtrace errors,
compressed events, CPU maps, build ID notes, and ELF program headers.
Add minimum event size validation and file offset diagnostics
- Fix libdw API contract violations across dwarf-aux, libdw,
probe-finder, annotate-data, and debuginfo subsystems. Fix callchain
parent update in ORDER_CALLER mode, support DWARF line 0 in inline
lists, handle multiple address spaces in callchains
- Fix numerous 'perf sched' bugs: thread reference leaks, memory leaks,
heap overflows with cross-machine recordings, NULL dereferences,
replace BUG_ON assertions with graceful error handling, bounds-check
CPU indices, fix SIGCHLD vs pause() races in sched stats
- Overhaul the build system: move BPF skeleton generation out of
Makefile.perf into bpf_skel.mak, decouple pmu-events from the prepare
target, make beauty generated C code standalone .o files, compile BPF
skeletons with -mcpu=v3, fix continuous rebuilds, various cleanups
- Add 'perf test' JUnit XML reporting with -j/--junit option, split
monolithic test suites into sub-tests, add summary reporting,
refactor parallel poll loop, fix test failures on musl-based systems
- Fix 'perf c2c' memory leaks in hist entry and format list handling,
use-after-free in error paths, bounds-check CPU and node IDs
- Fix 'perf bpf' metadata leaks on duplicate insert and alloc failure,
bounds-check array offsets, validate event sizes and func_info
fields, add NULL checks
- Fix hwmon PMU: off-by-one null termination on sysfs reads, strlcpy
buffer overflow in parse_hwmon_filename(), fd 0 check, empty label
reads, scnprintf usage
- Fix symbols subsystem: bounds-check ELF and sysfs build ID note
iteration, validate p_filesz, fix 32-bit ELF bswap error, fix signed
overflow in size checks, bounds-check .gnu_debuglink section
- Fix tools lib api: null termination in filename__read_int/ull(),
uninitialized stack data in filename__write_int(), snprintf
truncation in mount_overload()
- Replace libbabeltrace with babeltrace2-ctf-writer for CTF conversion
in 'perf data'
- Add RISC-V SDT argument parsing for static tracepoints
- Add 'perf trace --show-cpu' option to display CPU id
- Add 'perf bench sched pipe --write-size' option
- Add a perf-specific .clang-format that overrides some kernel style
behaviors
- Update Intel vendor events for Alder Lake, Arrow Lake, Clearwater
Forest, Emerald Rapids, Granite Rapids, Grand Ridge, Lunar Lake,
Meteor Lake, Panther Lake, Sapphire Rapids, Sierra Forest
- Add IOMMU metrics for AMD and Intel
- Fix AMD event: switch l2_itlb_misses to
bp_l1_tlb_miss_l2_tlb_miss.all
- Add AMD IBS improvements: decode Streaming-store and Remote-Socket
flags, suppress bogus fields on Zen4+, skip privilege test on Zen6+
- Fix 'perf lock contention' SIGCHLD vs pause() race, allow 'mmap_lock'
in -L filter, enable end-timestamp for cgroup aggregation, fix
non-atomic data updates
- Fix 'perf stat' false NMI watchdog warning in aggregation modes,
bounds-check CPU index in topology callbacks, add aggr_nr metric
parser support for uncore scaling
- Fix 'perf timechart' memory leaks, CPU bounds checking,
use-after-free on corrupted callchains
- Fix 'perf inject' itrace branch stack synthesis, fix synthesized
sample size with branch stacks
- Fix DSO heap overflow on decompressed paths, uninitialized pathname
on fallback, set proper error codes
- Fix various snprintf/scnprintf usages to prevent buffer overflows and
truncation across the codebase
- Fix off-by-one stack buffer overflow in kallsyms__parse()
- Fix 'perf kwork' memory management, address sanitizer issues, bounds
check work->cpu
- Fix 'perf tpebs' concurrent stop races and PID reuse hazards
- Add O_CLOEXEC to open() calls and use mkostemp() for temporary files
to prevent file descriptor leaks to child processes
- Fix s390 Python extension TEXTREL by compiling as PIC
- Fix build with ASAN for jitdump
- Fix build failure due to btf_vlen() return type change
* tag 'perf-tools-for-v7.2-1-2026-06-22' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (343 commits)
perf bpf: Fix up build failure due to change of btf_vlen() return type
perf dso: Set standard errno on decompression failure
perf bpf: Validate array presence before casting BPF prog info pointers
perf c2c: Fix hist entry and format list leaks in c2c_he_free()
perf c2c: Free format list entries when c2c_hists__init() fails
perf cs-etm: Bounds-check CPU in cs_etm__get_queue()
perf cs-etm: Require full global header in auxtrace_info size check
perf cs-etm: Validate num_cpu before metadata allocation
perf machine: Use snprintf() for guestmount path construction
perf machine: Propagate machine__init() error to callers
perf trace: Guard __probe_ip suppression with evsel__is_probe()
perf evsel: Add lazy-initialized probe type detection helpers
perf evsel: Add no-libtraceevent stubs for evsel__field() and evsel__common_field()
perf cs-etm: Reject CPU IDs that would overflow signed comparison
perf c2c: Free format list entries when releasing c2c hist entries
perf bpf: Bounds-check array offsets in bpil_offs_to_addr()
perf bpf: Reject oversized BPF metadata events that truncate header.size
perf bpf: Validate func_info_rec_size and sub_id in synthesize_bpf_prog_name()
perf sched: Replace (void*)1 sentinel with proper runtime allocation
perf hwmon: Fix fd check to accept fd 0 in hwmon_pmu__describe_items()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
- amd/hfi: Add support for dynamic ranking tables (version 3)
- amd/pmc:
- Add PMC driver support for AMD 1Ah M80H SoC
- Delay suspend for some Lenovo Laptops to avoid keyboard and lid
switch problems after s2idle
- arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver
- asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR
- asus-wmi: add keystone dongle support
- dell-dw5826e: Add reset driver for DW5826e
- dell-laptop: Fix rollback path
- hp-wmi:
- Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F
- intel-hid:
- Add HP ProBook x360 440 G1 5 button array support
- Prevent racing ACPI notify handlers
- intel/pmc:
- Add Nova Lake support
- Rate-limit LTR scale-factor warning
- intel-uncore-freq:
- Expose instance ID in the sysfs
- Fix current_freq_khz after CPU hotplug
- intel/vsec: Restore BAR fallback for header walk
- ISST: Restore SST-PP control to all domains
- lenovo-wmi-*:
- Add more CPU tunable attributes
- Add GPU tunable attributes
- Add WMI battery charge limiting
- oxpec: add support for OneXPlayer Super X
- sel3350-platform: Retain LED state on load and unload
- surface: SAM: Add support for Surface Pro 12in
- uniwill-laptop: Add support for battery charge modes
- tools/power/x86/intel-speed-select: Harden daemon pidfile open
- Major refactoring efforts:
- ACPI driver to platform driver conversion
- Converting drivers to use the improved WMI API
- Miscellaneous cleanups / refactoring / improvements
* tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (115 commits)
platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery
platform/x86/intel/pmc/ssram: Make PMT registration optional
platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding
platform/x86/intel/pmc/ssram: Switch to static array with per-index probe state
platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper
platform/x86/intel/pmc/ssram: Add PCI platform data
platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency
platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S
platform/x86/intel/pmc: Add PMC SSRAM Kconfig description
platform/x86/intel/pmt: Unify header fetch and add ACPI source
platform/x86/intel/pmt: Cache the telemetry discovery header
platform/x86/intel/pmt: Pass discovery index instead of resource
platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook
platform/x86/intel/pmt/crashlog: Split init into pre-decode
platform/x86/intel/pmt: Add pre/post decode hooks around header parsing
modpost: Handle malformed WMI GUID strings
platform/wmi: Make sysfs attributes const
platform/wmi: Make wmi_bus_class const
hwmon: (dell-smm) Use new buffer-based WMI API
platform/x86: dell-ddv: Use new buffer-based WMI API
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull more kselftest updates from Shuah Khan:
"Docs:
-remove obsolete wiki link from kselftest.rst
ftrace:
- drop invalid top-level local in test_ownership
- Fix trace_marker_raw test on 64K page kernels"
* tag 'linux_kselftest-next-7.2-rc1-second' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
docs: kselftest: remove link to obsolete wiki
selftests/ftrace: Fix trace_marker_raw test on 64K page kernels
selftests/ftrace: Drop invalid top-level local in test_ownership
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Add a test queueing from bridge family.
This was lacking: we queued from inet for ipv4 and ipv6 but
we had no bridge queue test so far.
Given kernel MUST validate that in/out port are still part of
a bridge device on reinject add a test case for this before
adding this check.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
|
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collision test
The existing test covered a scenario where a delayed INIT_ACK chunk
updates the vtag in conntrack after the association has already been
established.
A similar issue can occur with a delayed SCTP INIT chunk.
Add a new simultaneous-open test case where the client's INIT is
delayed, allowing conntrack to establish the association based on
the server-initiated handshake.
When the stale INIT arrives later, it may get recorded and cause a
following INIT_ACK from the peer to be accepted instead of dropped.
This INIT_ACK overwrites the vtag in conntrack, causing subsequent
SCTP DATA chunks to be considered as invalid and then dropped by
nft rules matching on ct state invalid.
This test verifies such stale INIT chunks do not cause problems.
Signed-off-by: Yi Chen <yiche.cy@gmail.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
|
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The net-next-hw spinners on netdev.bots.linux.dev observe failing
so-txtime-py tests. A review of stdout shows most failures to be
due to exceeding the 4ms grace period. All I saw were within 8ms.
So increase to that.
Double the bounds from 4 to 8ms. This is still is small enough to
differentiate the delays programmed by the test, 10 and 20ms.
Fixes: 5c6baef3885c ("selftests: drv-net: convert so_txtime to drv-net")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20260610170651.1b644001@kernel.org/
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260621200137.1564776-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Add a verifier test that catches the stale-bounds issue fixed in the
previous patch. The test sets r6 = 0 to create known bounds, then loads
the LSM hook return value into r6 from the context. Without the fix,
the verifier intersects the retval range with the stale bounds and
incorrectly narrows r6 to a single value, pruning the fall-through
branch as dead code and missing the div-by-zero.
Suggested-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Tristan Madani <tristan@talencesecurity.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260622230123.3695446-3-tristmd@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a conntrack kfunc regression check for opts__sz values that do not
cover opts->error. The BPF program initializes opts->error with a guard
value, calls the lookup and allocation kfuncs with opts__sz set to
sizeof(opts->netns_id), and verifies that the guard is still intact
after the kfunc returns NULL.
Without the conntrack wrapper guard, the kfunc error path overwrites
that guard with -EINVAL even though the verifier checked only the first
four bytes of the options object.
Fixes: b4c2b9593a1c ("net/netfilter: Add unstable CT lookup helpers for XDP and TC-BPF")
Fixes: d7e79c97c00c ("net: netfilter: Add kfuncs to allocate and insert CT")
Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn>
Link: https://lore.kernel.org/r/007dfd0341cd84560e4795a2a951cc56d4adff1d.1781765747.git.chenyy23@mails.tsinghua.edu.cn
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a verifier regression test for a pointer spill whose high half is
cleaned dead while the low half remains live. Force checkpoint creation
with BPF_F_TEST_STATE_FREQ and assert the verifier log reaches the
checkpoint and the subsequent 32-bit fill before rejecting the partial fill
from a non-scalar spill.
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Nuoqi Gui <gnq25@mails.tsinghua.edu.cn>
Link: https://lore.kernel.org/r/20260617-f01-06-half-slot-pointer-spill-v2-2-42b9cdc3cf64@mails.tsinghua.edu.cn
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver updates from Greg KH:
"Here is the big set of char, misc, iio, fpga, and other small driver
subsystems changes for 7.2-rc1.
Lots of little stuff in here, the majority being of course the IIO
driver updates, as a list they are:
- IIO driver updates and additions
- GPIB driver bugfixes and cleanups
- Android binder driver updates (rust and C version)
- counter driver updates
- MHI driver updates
- mei driver updates
- w1 driver updates
- interconnect driver updates
- Comedi driver fixes and updates
- some obsolete char drivers removed (applicom and dtlk)
- hwtracing driver updates
- other tiny driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
w1: ds2482: Use named initializers for arrays of i2c_device_data
firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure
iio: chemical: scd30: Replace manual locking with RAII locking
iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle()
iio: dac: ad5686: create bus ops struct
iio: dac: ad5686: cleanup doc header of local structs
iio: dac: ad5686: add control_sync() for single-channel devices
iio: dac: ad5686: add helpers to handle powerdown masks
iio: dac: ad5686: add of_match table to the spi driver
iio: dac: ad5686: drop enum id
iio: dac: ad5686: remove redundant register definition
iio: dac: ad5686: refactor include headers
iio: adc: ad4080: fix AD4880 chip ID
iio: light: veml3328: add support for new device
dt-bindings: iio: light: veml6030: add veml3328
fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()
...
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Fix:
util/btf.c: In function '__btf_type__find_member_by_name':
util/btf.c:19:43: error: comparison of integer expressions of different signedness: 'int' and '__u32' {aka 'unsigned int'} [-Werror=sign-compare]
19 | for (i = 0, m = btf_members(t); i < btf_vlen(t); i++, m++) {
| ^
builtin-trace.c: In function 'syscall_arg__strtoul_btf_enum':
builtin-trace.c:967:27: error: comparison of integer expressions of different signedness: 'int' and '__u32' {aka 'unsigned int'} [-Werror=sign-compare]
967 | for (int i = 0; i < btf_vlen(bt); ++i, ++be) {
| ^
by making the variable the same type as the function.
Committer note:
Add an extra hunk from Alan Maguire, fixing btf_enum_scnprintf().
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net. This batches
fixes for real crashes with trivial/correctness fixes. There is too
a rework of the conntrack expectation timeout strategy to deal with
a possible race when removing an expectation.
1) Fix the incorrect flowtable timeout extension for entries in
hw offload, from Adrian Bente. This is correcting a defect in
the functionality, no crash.
2) Hold reference to device under the fake dst in br_netfilter,
from Haoze Xie. This is fixing a possible UaF if the device
is removed while packet is sitting in nfqueue.
3) Reject template conntrack in xt_cluster, otherwise access to
uninitialize conntrack fields are possible leading to WARN_ON
due to unset layer 3 protocol. From Wyatt Feng.
4) Make sure the IPv6 tunnel header is in the linear skb data
area before pulling. While at it remove incomplete NEXTHDR_DEST
support. From Lorenzo Bianconi. This possibly leading to crash
if IPv4 header is not in the linear area.
5) Use test_bit_acquire in ipset hash set to avoid reordering
of subsequent memory access. This is addressing a LLM related
report, no crash has been observed. From Jozsef Kadlecsik.
6) Use test_bit_acquire in ipset bitmap set too, for the same
reason as in the previous patch, from Jozsef Kadlecsik.
7) Call kfree_rcu() after rcu_assign_pointer() to address a
possible UaF if kfree_rcu() runs inmediately, which to my
understanding never happens. Never observed in practise,
reported by LLM. Also from Jozsef Kadlecsik.
8) Use disable_delayed_work_sync() instead cancel_delayed_work_sync()
to avoid that ipset GC handler re-queues work as reported by LLM.
From Jozsef Kadlecsik. This is for correctness.
9) Restore the check in nft_payload for exceeding payloda offset
over 2^16. From Florian Westphal. This fixes a silent truncation,
not a big deal, but better be assertive and reject it.
10) Validate NFT_META_BRI_IIFHWADDR can only run from bridge
prerouting. From Florian Westphal. Harmless but it could allow
to read bytes from skb->cb.
11) Zero out destination hardware address during the flowtable
path setup, also from Florian. This is a correctness fix, LLM
points that possible infoleak can happen but topology to achieve
it is not clear.
12) Skip IPv4 options if present when building the IPV4 reject reply.
Otherwise bytes in the IPv4 options header can be sent back to
origin where the ICMP header is being expected. Again from
Florian Westphal.
13) Replace timer API for expectation by GC worker approach. This
is implicitly fixing a race between nf_ct_remove_expectations()
which might fail to remove the expectation due to timer_del()
returning false because timer has expired and callback is
being run concurrently. This fix is addressing a crash that has
been already reported with a reproducer.
14) Check if br_vlan_get_pvid_rcu() fails, otherwise possible stack
infoleak of 4-bytes. From Florian Westphal.
* tag 'nf-26-06-21' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nft_meta_bridge: fix NFT_META_BRI_IIFPVID stack leak
netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
netfilter: nf_reject: skip iphdr options when looking for icmp header
netfilter: nft_flow_offload: zero device address for non-ether case
netfilter: nft_meta_bridge: add validate callback for get operations
netfilter: nft_payload: reject offsets exceeding 65535 bytes
netfilter: ipset: make sure gc is properly stopped
netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer()
netfilter: ipset: Don't use test_bit() in lockless RCU readers in bitmap types
netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types
netfilter: flowtable: fix and simplify IP6IP6 tunnel handling
netfilter: xt_cluster: reject template conntracks in hash match
netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst
netfilter: flowtable: fix offloaded ct timeout never being extended
====================
Link: https://patch.msgid.link/20260620222738.112506-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The sched_ext sources had grown to ten ext* files directly under
kernel/sched/. Move them into a new kernel/sched/ext/ subdirectory and drop
the now-redundant ext_ prefix. ext.c/h keep their names.
kernel/sched/ext.{c,h} -> kernel/sched/ext/ext.{c,h}
kernel/sched/ext_internal.h -> kernel/sched/ext/internal.h
kernel/sched/ext_types.h -> kernel/sched/ext/types.h
kernel/sched/ext_idle.{c,h} -> kernel/sched/ext/idle.{c,h}
kernel/sched/ext_cid.{c,h} -> kernel/sched/ext/cid.{c,h}
kernel/sched/ext_arena.{c,h} -> kernel/sched/ext/arena.{c,h}
The include paths in build_policy.c and sched.h, the MAINTAINERS glob, and a
few documentation and comment references are updated to match. No code or
symbol changes.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull more slab updates from Vlastimil Babka:
- Introduce and wire up a new alloc_flags parameter for modifying
slab-specific behavior without adding or reusing gfp flags. Also
introduce slab_alloc_context to keep function parameter bloat in
check. Both are similar to what the page allocator does.
kmalloc_flags() exposes alloc_flags for mm-internal users.
- SLAB_ALLOC_NOLOCK flag is used to implement kmalloc_nolock()
behavior without relying on lack of __GFP_RECLAIM, which caused
false positives with workarounds like fd3634312a04 ("debugobject:
Make it work with deferred page initialization - again").
- SLAB_ALLOC_NO_RECURSE replaces __GFP_NO_OBJ_EXT, which could have
been removed, but pending memory allocation profiling changes in
mm tree have grown a new user - there is however a work ongoing
to replace that too, so __GFP_NO_OBJ_EXT should eventually be
removed. (Vlastimil Babka)
- Add kmem_buckets_alloc_track_caller() with a user to be added in the
net tree (Pedro Falcato)
- Fixes for kernel-doc and slabinfo (Randy Dunlap, Yichong Chen)
* tag 'slab-for-7.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
tools/mm/slabinfo: fix total_objects attribute name
slab: recognize @GFP parameter as optional in kernel-doc
mm/slab: add a node-track-caller variant for kmem buckets allocation
mm/slab: replace __GFP_NO_OBJ_EXT with SLAB_ALLOC_NO_RECURSE for sheaves
mm/slab: remove __GFP_NO_OBJ_EXT usage from alloc_slab_obj_exts()
mm/slab: introduce kmalloc_flags()
mm/slab: allow __GFP_NOMEMALLOC and __GFP_NOWARN for kmalloc_nolock()
mm/slab: pass slab_alloc_context to __do_kmalloc_node()
mm/slab: allow kmem_cache_alloc_bulk() with any gfp flags
mm/slab: replace slab_alloc_node() parameters with slab_alloc_context
mm/slab: pass alloc_flags through slab_post_alloc_hook() chain
mm/slab: pass alloc_flags to new slab allocation
mm/slab: add alloc_flags to slab_alloc_context
mm/slab: replace struct partial_context with slab_alloc_context
mm/slab: introduce alloc_flags and SLAB_ALLOC_NOLOCK
mm/slab: introduce slab_alloc_context
mm/slab: stop inlining __slab_alloc_node()
mm/slab: do not init any kfence objects on allocation
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LoongArch architecture changes for 7.2 need the bpf changes to add new
features, so merge 'bpf-next-7.2' to create a base.
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Add a cgroup_preorder case that attaches a normal and a BPF_F_PREORDER
program to a cgroup (effective order [2, 1]), then replaces the normal
link's program via bpf_link_update() and checks the effective order
becomes [2, 3] — i.e. only the non-preorder slot changes. Without the
replace_effective_prog() fix the array is corrupted and the order is
wrong.
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20260619063520.2690547-3-ameryhung@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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bpftool cgroup show and tree call libbpf_find_kernel_btf() to
resolve attach_btf names, but never release the returned BTF object.
For cgroup tree, do_show_tree_fn() is called once for each cgroup
visited by nftw(). When more than one cgroup has attached programs,
each callback overwrites btf_vmlinux with a new object and loses the
previous allocation.
Load vmlinux BTF only once during a tree walk and release it when
cgroup show or tree completes. Reset btf_vmlinux_id at the same time
so batch mode starts with clean state.
Fixes: 596f5fb2ea2a ("bpftool: implement cgroup tree for BPF_LSM_CGROUP")
Signed-off-by: Yichong Chen <chenyichong@uniontech.com>
Reviewed-by: Quentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/r/24357C69B4405079+20260617090117.280222-1-chenyichong@uniontech.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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llvm commit [1] allowed attaching type tag records to modifier BTF
records. This is useful for using typedefs that encompass a base type
and a type tag, e.g.:
typedef struct rbtree __arena rbtree_t;
Modify btf_check_type_tags() so that it allows this sequence of records.
The function now only checks for record loops in BTF modifier record
chains. Rename to btf_check_modifier_chain_length to reflect this.
Also expand the BTF modifier traversal code to take into account that
type record can be interleaved with other modifier records. In effect
this means traversing all modifiers to collect the type tags.
Also modify existing selftests to now accept modifier records (const,
typedef) that point to type tag records.
[1] https://github.com/llvm/llvm-project/pull/203089
Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/r/20260616061454.7869-1-emil@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a verifier test for the fixed-offset stack write case where two 4-byte
stores initialize opposite halves of the same stack slot.
The test runs through the unprivileged loader lane and expects both
half-slot writes to emit nospec in the translated program.
Acked-by: Luis Gerhorst <luis.gerhorst@fau.de>
Signed-off-by: Nuoqi Gui <gnq25@mails.tsinghua.edu.cn>
Link: https://lore.kernel.org/r/20260618-f01-11-stack-nospec-slot-index-v3-2-780297041721@mails.tsinghua.edu.cn
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a regression test for DualPI2 GSO backlog accounting when it is
used as a child qdisc of QFQ.
The test sends one UDP GSO datagram through a QFQ class with DualPI2 as
the leaf qdisc. DualPI2 splits the skb into two segments. After the
traffic drains, both QFQ and DualPI2 must report zero backlog and zero
qlen.
On kernels with the broken accounting, QFQ can keep a stale non-zero
qlen after all real packets have been dequeued.
Signed-off-by: Xingquan Liu <b1n@b1n.io>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Link: https://patch.msgid.link/20260619151447.223640-2-b1n@b1n.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen)
Fix a taskstats TGID aggregation bug where fields added in the TGID
query path were not preserved after thread exit, and adds a kselftest
covering the regression.
- "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko)
Improve lib/tests/string_helpers_kunit.c a little
- "lib/base64: decode fixes" (Josh Law)
Address minor issues in lib/base64.c
- "selftests/filelock: Make output more kselftestish" (Mark Brown)
Make the output from the ofdlocks test a bit easier for tooling to
work with. Also ignore the generated file
- "uaccess: unify inline vs outline copy_{from,to}_user() selection"
(Yury Norov)
Simplify the usercopy code by removing the selectability of inlining
copy_{from,to}_user().
- "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang)
Fix a number of possible issues in the ocfs2 xattr code
- "lib and lib/cmdline enhancements" (Dmitry Antipov)
Provide additional robustness checking in the cmdline handling code
and its in-kernel testing and selftests
- "cleanup the RAID6 P/Q library" (Christoph Hellwig)
Clean up the RAID6 P/Q library to match the recent updates to the
RAID 5 XOR library and other CRC/crypto libraries
- "ocfs2: harden inode validators against forged metadata" (Michael
Bommarito)
Add three structural checks to OCFS2 dinode validation so malformed
on-disk fields are rejected before ocfs2_populate_inode() copies them
into the in-core inode
- "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike
Rapoport)
Clean up the lib/raid code by using kmalloc() in more places
* tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits)
ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write
ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits
lib: interval_tree_test: validate benchmark parameters
ocfs2: avoid moving extents to occupied clusters
treewide: fix transposed "sign" typos and update spelling.txt
ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec
fat: reject BPB volumes whose data area starts beyond total sectors
selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems
lib/test_firmware: allocate the configured into_buf size
fs: efs: remove unneeded debug prints
checkpatch: cuppress warnings when Reported-by: is followed by Link:
MAINTAINERS: add Alexander as a kcov reviewer
mailmap: update Alexander Sverdlin's Email addresses
fs: fat: inode: replace sprintf() with scnprintf()
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release()
ocfs2/dlm: require a ref for locking_state debugfs open
ocfs2: reject FITRIM ranges shorter than a cluster
ocfs2: validate fast symlink target during inode read
ocfs2: add journal NULL check in ocfs2_checkpoint_inode()
...
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The test ignores the return value of fork(), so both the parent and the
(newly created) child run the COW verification loops and then call
hmm_buffer_free() before returning into the kselftest harness, which
_exit()s each side. This duplicated teardown sequence has been observed
to manifest as a SIGSEGV in the test child, e.g.:
hmm-tests[360141]: segfault (11) at 0 nip 10006964 lr 1000ac3c code 1
in hmm-tests[6964,10000000+30000]
Fix this by adopting the same fork()-then-wait pattern already used by the
nearby anon_write_child / anon_write_child_shared tests in this file: the
child performs the COW verification and then _exit(0)s so it does not run
the test teardown, while the parent independently verifies COW, waits for
the child, and only then frees the buffer.
Link: https://lore.kernel.org/20260611034102.1030738-4-aboorvad@linux.ibm.com
Fixes: b659baea75469 ("mm: selftests for exclusive device memory")
Signed-off-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Sayali Patil <sayalip@linux.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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migrate_partial_unmap_fault() and migrate_remap_fault() use hardcoded
offsets based on a 2MB PMD size. Similarly, benchmark_thp_migration()
assumes a fixed 2MB THP size when generating test buffer sizes.
Derive offsets and test sizes from the runtime PMD page size returned by
read_pmd_pagesize(). If unavailable, fall back to TWOMEG. This allows
the tests to adapt correctly on systems where PMD-sized THP differs from
2MB. Also replace the fixed 1MB unmap size with a PMD-relative value
derived from the runtime PMD size.
On systems with larger PMD sizes, computed test buffer sizes can exceed
INT_MAX. Skip such test cases to avoid overflow.
Link: https://lore.kernel.org/20260611034102.1030738-3-aboorvad@linux.ibm.com
Fixes: 24c2c5b8ffbd ("selftests/mm/hmm-tests: partial unmap, mremap and anon_write tests")
Fixes: 271a7b2e3c13 ("selftests/mm/hmm-tests: new throughput tests including THP")
Signed-off-by: Sayali Patil <sayalip@linux.ibm.com>
Signed-off-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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