linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-28 20:03:05 +00:00

No description

C 96.8%
Assembly 0.9%
Rust 0.7%
Shell 0.6%
Python 0.5%
Other 0.3%

Find a file

Pablo Neira Ayuso 4f49349c19 netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext [ Upstream commit `542ed8145e` ] Access to genmask field in struct nft_set_ext results in unaligned atomic read: [ 72.130109] Unable to handle kernel paging request at virtual address ffff0000c2bb708c [ 72.131036] Mem abort info: [ 72.131213] ESR = 0x0000000096000021 [ 72.131446] EC = 0x25: DABT (current EL), IL = 32 bits [ 72.132209] SET = 0, FnV = 0 [ 72.133216] EA = 0, S1PTW = 0 [ 72.134080] FSC = 0x21: alignment fault [ 72.135593] Data abort info: [ 72.137194] ISV = 0, ISS = 0x00000021, ISS2 = 0x00000000 [ 72.142351] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 72.145989] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 72.150115] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000237d27000 [ 72.154893] [ffff0000c2bb708c] pgd=0000000000000000, p4d=180000023ffff403, pud=180000023f84b403, pmd=180000023f835403, +pte=0068000102bb7707 [ 72.163021] Internal error: Oops: 0000000096000021 [#1] SMP [...] [ 72.170041] CPU: 7 UID: 0 PID: 54 Comm: kworker/7:0 Tainted: G E 6.13.0-rc3+ #2 [ 72.170509] Tainted: [E]=UNSIGNED_MODULE [ 72.170720] Hardware name: QEMU QEMU Virtual Machine, BIOS edk2-stable202302-for-qemu 03/01/2023 [ 72.171192] Workqueue: events_power_efficient nft_rhash_gc [nf_tables] [ 72.171552] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 72.171915] pc : nft_rhash_gc+0x200/0x2d8 [nf_tables] [ 72.172166] lr : nft_rhash_gc+0x128/0x2d8 [nf_tables] [ 72.172546] sp : ffff800081f2bce0 [ 72.172724] x29: ffff800081f2bd40 x28: ffff0000c2bb708c x27: 0000000000000038 [ 72.173078] x26: ffff0000c6780ef0 x25: ffff0000c643df00 x24: ffff0000c6778f78 [ 72.173431] x23: 000000000000001a x22: ffff0000c4b1f000 x21: ffff0000c6780f78 [ 72.173782] x20: ffff0000c2bb70dc x19: ffff0000c2bb7080 x18: 0000000000000000 [ 72.174135] x17: ffff0000c0a4e1c0 x16: 0000000000003000 x15: 0000ac26d173b978 [ 72.174485] x14: ffffffffffffffff x13: 0000000000000030 x12: ffff0000c6780ef0 [ 72.174841] x11: 0000000000000000 x10: ffff800081f2bcf8 x9 : ffff0000c3000000 [ 72.175193] x8 : 00000000000004be x7 : 0000000000000000 x6 : 0000000000000000 [ 72.175544] x5 : 0000000000000040 x4 : ffff0000c3000010 x3 : 0000000000000000 [ 72.175871] x2 : 0000000000003a98 x1 : ffff0000c2bb708c x0 : 0000000000000004 [ 72.176207] Call trace: [ 72.176316] nft_rhash_gc+0x200/0x2d8 [nf_tables] (P) [ 72.176653] process_one_work+0x178/0x3d0 [ 72.176831] worker_thread+0x200/0x3f0 [ 72.176995] kthread+0xe8/0xf8 [ 72.177130] ret_from_fork+0x10/0x20 [ 72.177289] Code: 54fff984 d503201f d2800080 91003261 (f820303f) [ 72.177557] ---[ end trace 0000000000000000 ]--- Align struct nft_set_ext to word size to address this and documentation it. pahole reports that this increases the size of elements for rhash and pipapo in 8 bytes on x86_64. Fixes: `7ffc748115` ("netfilter: nft_set_hash: skip duplicated elements pending gc run") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-01-09 13:32:01 +01:00
arch	powerpc: Remove initialisation of readpos	2025-01-09 13:31:55 +01:00
block	block: avoid to reuse `hctx` not removed from cpuhp callback list	2025-01-02 10:32:11 +01:00
certs	certs: Reference revocation list for all keyrings	2023-08-17 20:12:41 +00:00
crypto	crypto: ecc - Prevent ecc_digits_from_bytes from reading too many bytes	2025-01-09 13:31:52 +01:00
Documentation	ACPI/IORT: Add PMCG platform information for HiSilicon HIP09A	2025-01-09 13:31:51 +01:00
drivers	drm/i915/dg1: Fix power gate sequence.	2025-01-09 13:32:01 +01:00
fs	ceph: give up on paths longer than PATH_MAX	2025-01-09 13:31:54 +01:00
include	netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext	2025-01-09 13:32:01 +01:00
init	Compiler Attributes: disable __counted_by for clang < 19.1.3	2024-12-09 10:32:46 +01:00
io_uring	io_uring/sqpoll: fix sqpoll error handling races	2025-01-02 10:32:10 +01:00
ipc	ipc: fix memleak if msg_init_ns failed in create_ipc_ns	2024-12-09 10:32:54 +01:00
kernel	tracing: Check "%s" dereference via the field and not the TP_printk format	2025-01-09 13:31:55 +01:00
lib	seq_buf: Introduce DECLARE_SEQ_BUF and seq_buf_str()	2025-01-09 13:31:55 +01:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	memblock: allow zero threshold in validate_numa_converage()	2025-01-09 13:31:40 +01:00
net	netrom: check buffer length before accessing it	2025-01-09 13:32:00 +01:00
rust	rust: macros: fix documentation of the paste! macro	2024-12-09 10:32:25 +01:00
samples	samples/bpf: Fix a resource leak	2024-12-14 20:00:03 +01:00
scripts	setlocalversion: work around "git describe" performance	2024-12-14 20:00:17 +01:00
security	selinux: ignore unknown extended permissions	2025-01-09 13:31:54 +01:00
sound	ALSA: ump: Shut up truncated string warning	2025-01-09 13:31:53 +01:00
tools	stddef: make __struct_group() UAPI C++-friendly	2025-01-02 10:32:03 +01:00
usr	initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP	2023-06-06 17:54:49 +09:00
virt	KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock	2024-10-04 16:29:47 +02:00
.clang-format	iommu: Add for_each_group_device()	2023-05-23 08:15:51 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	Remove *.orig pattern from .gitignore	2024-10-04 16:29:44 +02:00
.mailmap	20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues	2023-10-24 09:52:16 -10:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	USB: Remove Wireless USB and UWB documentation	2023-08-09 14:17:32 +02:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	membarrier: riscv: Add full memory barrier in switch_mm()	2024-09-12 11:11:45 +02:00
Makefile	Linux 6.6.69	2025-01-02 10:32:11 +01:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.