PT-2024-11066 · Linux · Linux Kernel

Published 2021-04-20 · Updated 2024-04-10 · CVE-2021-46948

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the sfc driver in the Linux kernel, specifically with the farch module. The problem arises from using a TXQ label instead of a TXQ type, making the efx channel get tx queue() function inappropriate and potentially leading to NULL returns and panics.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-02871

CVE-2021-46948

Affected Products

Linux Kernel

References · 23

• https://osv.dev/vulnerability/DEBIAN-CVE-2021-46948 · Vendor Advisory
• https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46948 · Vendor Advisory
• https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052 · Patch
• https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253 · Patch
• https://cve.org/CVERecord?id=CVE-2021-46948 · Security Note
• https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-46948 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46948 · Security Note
• https://bdu.fstec.ru/vul/2025-02871 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46948 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-46948 · Vendor Advisory
• https://twitter.com/CVEnew/status/1762551318797758968 · Twitter Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46948 · Note
• https://lore.kernel.org/linux-cve-announce/[e-mail] · Note