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CVE-2024-36006

mlxsw: spectrum_acl_tcam: Fix incorrect list API usage

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.4.275, 5.10.216, 5.15.158, 6.1.90, 6.6.30, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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>

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in 0b2c13b670b168e324e1cf109e67056a20fd610a; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in 09846c2309b150b8ce4e0ce96f058197598fc530; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in 64435b64e43d8ee60faa46c0cd04e323e8b2a7b0; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in 4526a56e02da3725db979358964df9cd9c567154; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in ab4ecfb627338e440ae11def004c524a00d93e40; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in af8b593c3dd9df82cb199be65863af004b09fd97; From 6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf · fixed in b377add0f0117409c418ddd6504bd682ebe0bf79

  • Linux Linux

    5.1

  • KernelLinux

    From 5.1.0 · fixed in 5.4.275; From 5.5.0 · fixed in 5.10.216; From 5.11.0 · fixed in 5.15.158; From 5.16.0 · fixed in 6.1.90; From 6.2.0 · fixed in 6.6.30; From 6.7.0 · fixed in 6.8.9

References 7

git.kernel.org