CVEvulnerability

CVE-2022-49084

5.5 MEDIUM Published 2025-02-26 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2025-02-26
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: qede: confirm skb is allocated before using qede_build_skb() assumes build_skb() always works and goes straight to skb_reserve(). However, build_skb() can fail under memory pressure. This results in a kernel panic because the skb to reserve is NULL. Add a check in case build_skb() failed to allocate and return NULL. The NULL return is handled correctly in callers to qede_build_skb().

Affected configurations

• linux linux kernel (>= 4.18 < 4.19.238) • linux linux kernel (>= 4.20 < 5.4.189) • linux linux kernel (>= 5.5 < 5.10.111) • linux linux kernel (>= 5.11 < 5.15.34) • linux linux kernel (>= 5.16 < 5.16.20) • linux linux kernel (>= 5.17 < 5.17.3) • linux linux kernel 5.18

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References