SB2025072210 - Use-after-free in Linux kernel sched
Published: July 22, 2025
Security Bulletin ID
SB2025072210
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-38350)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the qdisc_alloc_handle() and qdisc_tree_reduce_backlog() functions in net/sched/sch_api.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/103406b38c600fec1fe375a77b27d87e314aea09
- https://git.kernel.org/stable/c/3b290923ad2b23596208c1e29520badef4356a43
- https://git.kernel.org/stable/c/7874c9c132e906a52a187d045995b115973c93fb
- https://git.kernel.org/stable/c/a44acdd9e84a211989ff4b9b92bf3545d8456ad5
- https://git.kernel.org/stable/c/a553afd91f55ff39b1e8a1c4989a29394c9e0472
- https://git.kernel.org/stable/c/e269f29e9395527bc00c213c6b15da04ebb35070
- https://git.kernel.org/stable/c/e9921b57dca05ac5f4fa1fa8e993d4f0ee52e2b7
- https://git.kernel.org/stable/c/f680a4643c6f71e758d8fe0431a958e9a6a4f59d