Description
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix incorrect list API usage Both the function that migrates all the chunks within a region and the function that migrates all the entries within a chunk call list_first_entry() on the respective lists without checking that the lists are not empty. This is incorrect usage of the API, which leads to the following warning [1]. Fix by returning if the lists are empty as there is nothing to migrate in this case. [1] WARNING: CPU: 0 PID: 6437 at drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c:1266 mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0> Modules linked in: CPU: 0 PID: 6437 Comm: kworker/0:37 Not tainted 6.9.0-rc3-custom-00883-g94a65f079ef6 #39 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:mlxsw_sp_acl_tcam_vchunk_migrate_all+0x1f1/0x2c0 [...] Call Trace: <TASK> mlxsw_sp_acl_tcam_vregion_rehash_work+0x6c/0x4a0 process_one_work+0x151/0x370 worker_thread+0x2cb/0x3e0 kthread+0xd0/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK>
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < 0b2c13b670b168e324e1cf109e67056a20fd610aaffected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < 09846c2309b150b8ce4e0ce96f058197598fc530affected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < 64435b64e43d8ee60faa46c0cd04e323e8b2a7b0affected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < 4526a56e02da3725db979358964df9cd9c567154affected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < ab4ecfb627338e440ae11def004c524a00d93e40affected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < af8b593c3dd9df82cb199be65863af004b09fd97affected6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf to < b377add0f0117409c418ddd6504bd682ebe0bf79affected
Linux Linux
Default version status: affected
5.1affected0 to < 5.1unaffected5.4.275 to ≤ 5.4.*unaffected5.10.216 to ≤ 5.10.*unaffected5.15.158 to ≤ 5.15.*unaffected6.1.90 to ≤ 6.1.*unaffected6.6.30 to ≤ 6.6.*unaffected6.8.9 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0b2c13b670b168e324e1cf109e67056a20fd610a ↗
- https://git.kernel.org/stable/c/09846c2309b150b8ce4e0ce96f058197598fc530 ↗
- https://git.kernel.org/stable/c/64435b64e43d8ee60faa46c0cd04e323e8b2a7b0 ↗
- https://git.kernel.org/stable/c/4526a56e02da3725db979358964df9cd9c567154 ↗
- https://git.kernel.org/stable/c/ab4ecfb627338e440ae11def004c524a00d93e40 ↗
- https://git.kernel.org/stable/c/af8b593c3dd9df82cb199be65863af004b09fd97 ↗
- https://git.kernel.org/stable/c/b377add0f0117409c418ddd6504bd682ebe0bf79 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html ↗