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Florian Westphal cd38d9cdf4 netfilter: nf_tables: avoid false-positive lockdep splat on rule deletion
[ Upstream commit 9adbb4198bf6cf3634032871118a7052aeaa573f ]

On rule delete we get:
 WARNING: suspicious RCU usage
 net/netfilter/nf_tables_api.c:3420 RCU-list traversed in non-reader section!!
 1 lock held by iptables/134:
   #0: ffff888008c4fcc8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (include/linux/jiffies.h:101) nf_tables

Code is fine, no other CPU can change the list because we're holding
transaction mutex.

Pass the needed lockdep annotation to the iterator and fix
two comments for functions that are no longer restricted to rcu-only
context.

This is enough to resolve rule delete, but there are several other
missing annotations, added in followup-patches.

Fixes: 28875945ba ("rcu: Add support for consolidated-RCU reader checking")
Reported-by: Matthieu Baerts <matttbe@kernel.org>
Tested-by: Matthieu Baerts <matttbe@kernel.org>
Closes: https://lore.kernel.org/netfilter-devel/da27f17f-3145-47af-ad0f-7fd2a823623e@kernel.org/
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-09 10:32:08 +01:00
Documentation ASoC: dt-bindings: mt6359: Update generic node name and dmic-mode 2024-12-09 10:32:01 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch bpf, arm64: Remove garbage frame for struct_ops trampoline 2024-12-09 10:32:06 +01:00
block block: fix bio_split_rw_at to take zone_write_granularity into account 2024-12-09 10:31:45 +01:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY 2024-12-09 10:31:48 +01:00
drivers drm: use ATOMIC64_INIT() for atomic64_t 2024-12-09 10:32:07 +01:00
fs ext4: fix race in buffer_head read fault injection 2024-12-09 10:31:46 +01:00
include virtchnl: Add CRC stripping capability 2024-12-09 10:32:02 +01:00
init initramfs: avoid filename buffer overrun 2024-12-09 10:31:44 +01:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:08:58 +01:00
ipc sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table) 2024-08-11 12:47:13 +02:00
kernel cgroup/bpf: only cgroup v2 can be attached by bpf programs 2024-12-09 10:31:54 +01:00
lib lib/buildid: Fix build ID parsing logic 2024-11-22 15:38:36 +01:00
mm mm/damon/core: copy nr_accesses when splitting region 2024-11-22 15:38:37 +01:00
net netfilter: nf_tables: avoid false-positive lockdep splat on rule deletion 2024-12-09 10:32:08 +01:00
rust rust: sync: require `T: Sync` for `LockedBy::access` 2024-10-10 11:57:44 +02:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-09 10:32:02 +01:00
scripts kconfig: qconf: fix buffer overflow in debug links 2024-10-10 11:58:01 +02:00
security ima: fix buffer overrun in ima_eventdigest_init_common 2024-11-22 15:38:34 +01:00
sound ASoC: rt722-sdca: Remove logically deadcode in rt722-sdca.c 2024-12-09 10:32:03 +01:00
tools bpf, bpftool: Fix incorrect disasm pc 2024-12-09 10:32:07 +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
.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 6.6.63 2024-11-22 15:38:37 +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.