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Paolo Abeni bba7909b51 ip6mr: fix tables suspicious RCU usage 
[ Upstream commit f1553c9894 ]

Several places call ip6mr_get_table() with no RCU nor RTNL lock.
Add RCU protection inside such helper and provide a lockless variant
for the few callers that already acquired the relevant lock.

Note that some users additionally reference the table outside the RCU
lock. That is actually safe as the table deletion can happen only
after all table accesses are completed.

Fixes: e2d57766e6 ("net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.")
Fixes: d7c31cbde4 ("net: ip6mr: add RTM_GETROUTE netlink op")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-09 10:32:36 +01:00
arch LoongArch: BPF: Sign-extend return values 2024-12-09 10:32:31 +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
Documentation fs_parser: update mount_api doc to match function signature 2024-12-09 10:32:31 +01:00
drivers bnxt_en: Unregister PTP during PCI shutdown and suspend 2024-12-09 10:32:35 +01:00
fs NFSD: Fix nfsd4_shutdown_copy() 2024-12-09 10:32:30 +01:00
include netpoll: Use rcu_access_pointer() in netpoll_poll_lock 2024-12-09 10:32:12 +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 trace/trace_event_perf: remove duplicate samples on the first tracepoint event 2024-12-09 10:32:12 +01:00
lib lib/buildid: Fix build ID parsing logic 2024-11-22 15:38:36 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/damon/core: copy nr_accesses when splitting region 2024-11-22 15:38:37 +01:00
net ip6mr: fix tables suspicious RCU usage 2024-12-09 10:32:36 +01:00
rust rust: macros: fix documentation of the paste! macro 2024-12-09 10:32:25 +01:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-09 10:32:02 +01:00
scripts checkpatch: always parse orig_commit in fixes tag 2024-12-09 10:32:18 +01:00
security ima: fix buffer overrun in ima_eventdigest_init_common 2024-11-22 15:38:34 +01:00
sound ALSA: 6fire: Release resources at card release 2024-12-09 10:32:11 +01:00
tools selftests/mount_setattr: Fix failures on 64K PAGE_SIZE kernels 2024-12-09 10:32:30 +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 6.6.63 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.