CVE-2025-37798
HIGH severity · CVSS 7.8
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue().
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1Patch
- https://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaefPatch
- https://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619dPatch
- https://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58ePatch
- https://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30Patch
- https://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31Patch
- https://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2Patch
- https://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483Patch