CVE-2023-54074
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use correct encap attribute during invalidation With introduction of post action infrastructure most of the users of encap attribute had been modified in order to obtain the correct attribute by calling mlx5e_tc_get_encap_attr() helper instead of assuming encap action is always on default attribute. However, the cited commit didn't modify mlx5e_invalidate_encap() which prevents it from destroying correct modify header action which leads to a warning [0]. Fix the issue by using correct attribute. [0]: Feb 21 09:47:35 c-237-177-40-045 kernel: WARNING: CPU: 17 PID: 654 at drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:684 mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: RIP: 0010:mlx5e_tc_attach_mod_hdr+0x1cc/0x230 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: Call Trace: Feb 21 09:47:35 c-237-177-40-045 kernel: <TASK> Feb 21 09:47:35 c-237-177-40-045 kernel: mlx5e_tc_fib_event_work+0x8e3/0x1f60 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: ? mlx5e_take_all_encap_flows+0xe0/0xe0 [mlx5_core] Feb 21 09:47:35 c-237-177-40-045 kernel: ? lock_downgrade+0x6d0/0x6d0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x273/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: process_one_work+0x7c2/0x1310 Feb 21 09:47:35 c-237-177-40-045 kernel: ? lockdep_hardirqs_on_prepare+0x3f0/0x3f0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? pwq_dec_nr_in_flight+0x230/0x230 Feb 21 09:47:35 c-237-177-40-045 kernel: ? rwlock_bug.part.0+0x90/0x90 Feb 21 09:47:35 c-237-177-40-045 kernel: worker_thread+0x59d/0xec0 Feb 21 09:47:35 c-237-177-40-045 kernel: ? __kthread_parkme+0xd9/0x1d0
How to fix
- Linux Linux00959a1bad58e4b6c14a2729f84d354255073609, b8b4292fdd8818ab43b943b6717811651f51e39f, be071cdb167fc3e25fe81922166b3d499d23e8ac or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 8300f225268be9ee2c0daf5a3f23929fcdcbf213 ≤ v < 00959a1bad58e4b6c14a2729f84d354255073609, 8300f225268be9ee2c0daf5a3f23929fcdcbf213 ≤ v < b8b4292fdd8818ab43b943b6717811651f51e39f, 8300f225268be9ee2c0daf5a3f23929fcdcbf213 ≤ v < be071cdb167fc3e25fe81922166b3d499d23e8ac, 5.18 | 00959a1bad58e4b6c14a2729f84d354255073609, b8b4292fdd8818ab43b943b6717811651f51e39f, be071cdb167fc3e25fe81922166b3d499d23e8ac |
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