CVE-2025-38568

HIGH EPSS 4.9%
Published Aug 19, 202510mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Aug 19, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥6.4  –  <6.6.102
linuxlinux_kernel*≥6.7  –  <6.12.42
linuxlinux_kernel*≥6.13  –  <6.15.10
linuxlinux_kernel*≥6.16  –  <6.16.1

References 5

  • git.kernel.org https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17
    Patch