CVEvulnerability

CVE-2025-38568

7.8 HIGH Published 2025-08-19 Modified 2026-07-30 Official page ↗
Status
Modified
Published
2025-08-19
Last modified
2026-07-30
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value TC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack write in the fp[] array, which only has room for 16 elements (0–15). Fix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.

Affected configurations

• linux linux kernel (>= 6.4 < 6.6.102) • linux linux kernel (>= 6.7 < 6.12.42) • linux linux kernel (>= 6.13 < 6.15.10) • linux linux kernel (>= 6.16 < 6.16.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References