CVE-2024-40940

HIGH

Linux Kernel 5.19-6.1.95, 6.2-6.6.35, 6.7-6.9.6 - Use-After-Free in Flow Rule Creation

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix tainted pointer delete is case of flow rules creation fail In case of flow rule creation fail in mlx5_lag_create_port_sel_table(), instead of previously created rules, the tainted pointer is deleted deveral times. Fix this bug by using correct flow rules pointers. Found by Linux Verification Center (linuxtesting.org) with SVACE.

References (5)

Core 5

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Patch

https://git.kernel.org/stable/c/531eab2da27dd42d68dfb841d82e987f4a6738b8

Patch

https://git.kernel.org/stable/c/d857df86837ac1c30592e8a068204d16feac9930

Patch

https://git.kernel.org/stable/c/a03a3fa12769e25f4385bee587afe1445aee7f7a

Patch

https://git.kernel.org/stable/c/229bedbf62b13af5aba6525ad10b62ad38d9ccb5

Scores

CVSS v3 7.8

EPSS 0.0026

EPSS Percentile 17.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-415

Status published

Products (15)

linux/Kernel 5.19.0 - 6.1.95linux

linux/Kernel 6.2.0 - 6.6.35linux

linux/Kernel 6.7.0 - 6.9.6linux

Linux/Linux < 5.19

Linux/Linux 352899f384d4aefa77ede6310d08c1b515612a8f - 229bedbf62b13af5aba6525ad10b62ad38d9ccb5

Linux/Linux 352899f384d4aefa77ede6310d08c1b515612a8f - 531eab2da27dd42d68dfb841d82e987f4a6738b8

Linux/Linux 352899f384d4aefa77ede6310d08c1b515612a8f - a03a3fa12769e25f4385bee587afe1445aee7f7a

Linux/Linux 352899f384d4aefa77ede6310d08c1b515612a8f - d857df86837ac1c30592e8a068204d16feac9930

Linux/Linux 5.19

Linux/Linux 6.1.95 - 6.1.*

... and 5 more

Published Jul 12, 2024

Tracked Since Feb 18, 2026