CVE-2025-38568

Advisory lineage Upstream: 0 Downstream: 46
Analyzed
Published: 19 Aug 2025, 17:02
Last modified:11 May 2026, 21:30

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Aug 2025, 17:02
Published
Vulnerability first disclosed
11 May 2026, 21:30
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 7%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux

    ≥ f62af20bed2d9e824f51cfc97ff01bc261f40e58, < 39491e859fd494d0b51adc5c7d54c8a7dcf1d198 | ≥ f62af20bed2d9e824f51cfc97ff01bc261f40e58, < d00e4125680f7074c4f42ce3c297336f23128e70 | ≥ f62af20bed2d9e824f51cfc97ff01bc261f40e58, < 66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86 | ≥ f62af20bed2d9e824f51cfc97ff01bc261f40e58, < f1a9dbcb7d17bf0abb325cdc984957cfabc59693 | ≥ f62af20bed2d9e824f51cfc97ff01bc261f40e58, < ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17 | 6.4

  • linux•linux_kernel

    ≥ 6.4, < 6.6.102 | ≥ 6.7, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1

References (5)