CVE-2021-46949

MEDIUM

Linux Kernel 5.10.0-5.10.35 - NULL Pointer Dereference in TX Queue Lookup

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: sfc: farch: fix TX queue lookup in TX flush done handling We're starting from a TXQ instance number ('qid'), not a TXQ type, so efx_get_tx_queue() is inappropriate (and could return NULL, leading to panics).

References (4)

Core 4

Core References

Patch

https://git.kernel.org/stable/c/fb791572d6747ef385f628450f8d57cd132e6e5a

Patch

https://git.kernel.org/stable/c/a1570985ec04116cc665b760faf666a104154170

Patch

https://git.kernel.org/stable/c/98d91180748986bfb6dfb3e72765f3225719a647

Patch

https://git.kernel.org/stable/c/5b1faa92289b53cad654123ed2bc8e10f6ddd4ac

Scores

CVSS v3 5.5

EPSS 0.0022

EPSS Percentile 12.6%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (11)

Linux/Linux < 5.10

Linux/Linux 12804793b17c0e19115a90d98f2f3df0cb79e233 - 5b1faa92289b53cad654123ed2bc8e10f6ddd4ac

Linux/Linux 12804793b17c0e19115a90d98f2f3df0cb79e233 - 98d91180748986bfb6dfb3e72765f3225719a647

Linux/Linux 12804793b17c0e19115a90d98f2f3df0cb79e233 - a1570985ec04116cc665b760faf666a104154170

Linux/Linux 12804793b17c0e19115a90d98f2f3df0cb79e233 - fb791572d6747ef385f628450f8d57cd132e6e5a

Linux/Linux 5.10

Linux/Linux 5.10.36 - 5.10.*

Linux/Linux 5.11.20 - 5.11.*

Linux/Linux 5.12.3 - 5.12.*

Linux/Linux 5.13

... and 1 more

Published Feb 27, 2024

Tracked Since Feb 18, 2026