CVE-2025-38477High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other thr…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
0.1% → 0.1%
In the Linux kernel, the following vulnerability has been resolved:
net/sched: sch_qfq: Fix race condition on qfq_aggregate
A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free.
This patch addresses the issue by:
Moved qfq_destroy_class into the critical section.
Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.
Linux >= 462dbc9101acd38e92eda93c0726857517a24bbd < aa7a22c4d678bf649fd3a1d27debec583563414dLinux >= 462dbc9101acd38e92eda93c0726857517a24bbd < d841aa5518508ab195b6781ad0d73ee378d713ddLinux >= 462dbc9101acd38e92eda93c0726857517a24bbd < c6df794000147a3a02f79984aada4ce83f8d0a1eLinux >= 462dbc9101acd38e92eda93c0726857517a24bbd < 466e10194ab81caa2ee6a332d33ba16bcceeeba6Linux >= 462dbc9101acd38e92eda93c0726857517a24bbd < fbe48f06e64134dfeafa89ad23387f66ebca3527Linux >= 462dbc9101acd38e92eda93c0726857517a24bbd < a6d735100f602c830c16d69fb6d780eebd8c9ae1Linux >= 462dbc9101acd38e92eda93c0726857517a24bbd < c000a3a330d97f6c073ace5aa5faf94b9adb4b79Linux >= 462dbc9101acd38e92eda93c0726857517a24bbd < 5e28d5a3f774f118896aec17a3a20a9c5c9dfc64Linux 3.8Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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