kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-10 20:48:12 +00:00
Code Issues Releases Packages Activity
No description
1,322,773 commits 117 branches 5,827 tags 6.3 GiB
  • C 96.8%
  • Assembly 0.9%
  • Rust 0.7%
  • Shell 0.6%
  • Python 0.5%
  • Other 0.3%
Find a file
Wang Liang 6f3af8055e bonding: check xdp prog when set bond mode 
[ Upstream commit 094ee6017e ]

Following operations can trigger a warning[1]:

    ip netns add ns1
    ip netns exec ns1 ip link add bond0 type bond mode balance-rr
    ip netns exec ns1 ip link set dev bond0 xdp obj af_xdp_kern.o sec xdp
    ip netns exec ns1 ip link set bond0 type bond mode broadcast
    ip netns del ns1

When delete the namespace, dev_xdp_uninstall() is called to remove xdp
program on bond dev, and bond_xdp_set() will check the bond mode. If bond
mode is changed after attaching xdp program, the warning may occur.

Some bond modes (broadcast, etc.) do not support native xdp. Set bond mode
with xdp program attached is not good. Add check for xdp program when set
bond mode.

    [1]
    ------------[ cut here ]------------
    WARNING: CPU: 0 PID: 11 at net/core/dev.c:9912 unregister_netdevice_many_notify+0x8d9/0x930
    Modules linked in:
    CPU: 0 UID: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.14.0-rc4 #107
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
    Workqueue: netns cleanup_net
    RIP: 0010:unregister_netdevice_many_notify+0x8d9/0x930
    Code: 00 00 48 c7 c6 6f e3 a2 82 48 c7 c7 d0 b3 96 82 e8 9c 10 3e ...
    RSP: 0018:ffffc90000063d80 EFLAGS: 00000282
    RAX: 00000000ffffffa1 RBX: ffff888004959000 RCX: 00000000ffffdfff
    RDX: 0000000000000000 RSI: 00000000ffffffea RDI: ffffc90000063b48
    RBP: ffffc90000063e28 R08: ffffffff82d39b28 R09: 0000000000009ffb
    R10: 0000000000000175 R11: ffffffff82d09b40 R12: ffff8880049598e8
    R13: 0000000000000001 R14: dead000000000100 R15: ffffc90000045000
    FS:  0000000000000000(0000) GS:ffff888007a00000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 000000000d406b60 CR3: 000000000483e000 CR4: 00000000000006f0
    Call Trace:
     <TASK>
     ? __warn+0x83/0x130
     ? unregister_netdevice_many_notify+0x8d9/0x930
     ? report_bug+0x18e/0x1a0
     ? handle_bug+0x54/0x90
     ? exc_invalid_op+0x18/0x70
     ? asm_exc_invalid_op+0x1a/0x20
     ? unregister_netdevice_many_notify+0x8d9/0x930
     ? bond_net_exit_batch_rtnl+0x5c/0x90
     cleanup_net+0x237/0x3d0
     process_one_work+0x163/0x390
     worker_thread+0x293/0x3b0
     ? __pfx_worker_thread+0x10/0x10
     kthread+0xec/0x1e0
     ? __pfx_kthread+0x10/0x10
     ? __pfx_kthread+0x10/0x10
     ret_from_fork+0x2f/0x50
     ? __pfx_kthread+0x10/0x10
     ret_from_fork_asm+0x1a/0x30
     </TASK>
    ---[ end trace 0000000000000000 ]---

Fixes: 9e2ee5c7e7 ("net, bonding: Add XDP support to the bonding driver")
Signed-off-by: Wang Liang <wangliang74@huawei.com>
Acked-by: Jussi Maki <joamaki@gmail.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250321044852.1086551-1-wangliang74@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Rajani Kantha <681739313@139.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-11-02 22:15:22 +09:00
arch arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c 2025-11-02 22:15:22 +09:00
block blk-crypto: fix missing blktrace bio split events 2025-10-19 16:33:48 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: essiv - Check ssize for decryption and in-place encryption 2025-10-19 16:33:42 +02:00
Documentation docs: kdoc: handle the obsolescensce of docutils.ErrorString() 2025-11-02 22:15:22 +09:00
drivers bonding: check xdp prog when set bond mode 2025-11-02 22:15:22 +09:00
fs f2fs: fix to avoid panic once fallocation fails for pinfile 2025-11-02 22:15:22 +09:00
include bonding: check xdp prog when set bond mode 2025-11-02 22:15:22 +09:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:33:50 +02:00
io_uring io_uring/sqpoll: be smarter on when to update the stime usage 2025-10-29 14:08:59 +01:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:11:22 +01:00
kernel cpuset: Use new excpus for nocpu error check when enabling root partition 2025-11-02 22:15:21 +09:00
lib lib/crypto/curve25519-hacl64: Disable KASAN with clang-17 and older 2025-10-19 16:34:00 +02:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm: prevent poison consumption when splitting THP 2025-10-29 14:08:57 +01:00
net wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() 2025-11-02 22:15:22 +09:00
rust mm/ksm: fix flag-dropping behavior in ksm_madvise 2025-10-23 16:20:47 +02:00
samples ftrace/samples: Fix function size computation 2025-09-19 16:35:44 +02:00
scripts gcc-plugins: Remove TODO_verify_il for GCC >= 16 2025-10-06 11:17:52 +02:00
security KEYS: trusted_tpm1: Compare HMAC values in constant time 2025-10-19 16:33:51 +02:00
sound ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails 2025-10-23 16:20:37 +02:00
tools selftests: mptcp: join: mark 'delete re-add signal' as skipped if not supported 2025-11-02 22:15:22 +09:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-13 13:02:18 +01:00
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-07-17 18:37:08 +02:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-08-01 09:48:44 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: introduce .clippy.toml 2025-03-13 13:01:42 +01:00
.mailmap mailmap: add entry for Thorsten Blum 2024-11-07 14:14:59 -08:00
.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 MAINTAINERS: Remove self from DSA entry 2024-11-03 12:52:38 -08:00
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 MAINTAINERS: Update Alexey Makhalov's email address 2025-05-22 14:29:46 +02:00
Makefile Linux 6.12.56 2025-10-29 14:09:02 +01:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.