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CVE-2024-36006

mlxsw: spectrum_acl_tcam: Fix incorrect list API usage

MEDIUM
5.5
CVSS Score
Published: May 20, 2024 at 09:48 AM UTC
Updated: October 15, 2026 at 01:18 AM UTC
8 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC S7-1500 TM MFP

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.0
Linux Kernel· Linux
95%
5.1 ≤ v < 5.4.2755.11 ≤ v < 5.15.1585.16 ≤ v < 6.1.905.5 ≤ v < 5.10.2166.2 ≤ v < 6.6.306.7 ≤ v < 6.8.95.16.96.9 rc16.9 rc26.9 rc36.9 rc46.9 rc56f9579d4e3021b17b0a4cde6b04a6c94c9575cdf
Vendor states this is fixed in 09846c2309b150b8ce4e0ce96f058197598fc530 (fixed)
Vendor states this is fixed in 0b2c13b670b168e324e1cf109e67056a20fd610a (fixed)
Vendor states this is fixed in 4526a56e02da3725db979358964df9cd9c567154 (fixed)
Vendor states this is fixed in 64435b64e43d8ee60faa46c0cd04e323e8b2a7b0 (fixed)
Vendor states this is fixed in ab4ecfb627338e440ae11def004c524a00d93e40 (fixed)
Vendor states this is fixed in af8b593c3dd9df82cb199be65863af004b09fd97 (fixed)
Vendor states this is fixed in b377add0f0117409c418ddd6504bd682ebe0bf79 (fixed)
Vendor states this is fixed in 5.1 (unaffected)
Vendor states this is fixed in 5.10.216 (unaffected)
Vendor states this is fixed in 5.15.158 (unaffected)
Vendor states this is fixed in 5.4.275 (unaffected)
Vendor states this is fixed in 6.1.90 (unaffected)
Vendor states this is fixed in 6.6.30 (unaffected)
Vendor states this is fixed in 6.8.9 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)
RUGGEDCOM RST2428P Firmware· Siemens
60%
v < V3.1
Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement
SCALANCE XCH-300· Siemens
60%
v < V3.1
Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement
SCALANCE XCM-300· Siemens
60%
v < V3.1
Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement
SCALANCE XRH-300· Siemens
60%
v < V3.1
Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement
SCALANCE XRM-300· Siemens
60%
v < V3.1
Affected range stops below V3.1, so it looks safe — our inference, not a vendor statement
SIMATIC S7-1500 TM MFP· Siemens
60%
All versions

References (10)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/09846c2309b150b8ce4e0ce96f058197598fc530
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0b2c13b670b168e324e1cf109e67056a20fd610a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4526a56e02da3725db979358964df9cd9c567154
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/64435b64e43d8ee60faa46c0cd04e323e8b2a7b0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ab4ecfb627338e440ae11def004c524a00d93e40
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/af8b593c3dd9df82cb199be65863af004b09fd97
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b377add0f0117409c418ddd6504bd682ebe0bf79
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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