๐Ÿ›ก๏ธ CVE-2025-38107
๐ŸŸ  CVSS 7.0 โ€” High โœ… No Known Exploit CWE-362 NVD
7.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: fix a race in ets_qdisc_change() Gerrard Tai reported a race condition in ETS, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.

Details

Severity HIGH
CVSS Score 7.0
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-362
Public Exploit โœ… No
Source NVD
Published 2025-07-03
Updated 2026-06-02
Modified 2025-12-16

Affected Packages

Software From version Fixed in
debian-linux โ€” โ€”
linux-kernel โ€” โ€”

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