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CVE-2025-38107

גבוהה 7.0

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
7.0 (HIGH) מקור הציון: NVD CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-21/9/2026
CWE
CWE-362

מוצרים מושפעים

linux: linux kernel; debian: debian linux

קישורים