In the Linux kernel, the following vulnerability has been resolved: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() When enqueuing the first packet to an HFSC class, hfsc_enqueu…
High CVSS 7.8
Summary
In the Linux kernel, the following vulnerability has been resolved: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() When enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the child qdisc's peek() operation before incrementing sch->q.qlen and sch->qstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may trigger an immediate dequeue and potential packet drop. In such cases, qdisc_tree_reduce_backlog() is called, but the HFSC qdisc's qlen and ba…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
- :
Sources
- NVD DATABASE
Original Links
- https://git.kernel.org/stable/c/1034e3310752e8675e313f7271b348914008719a Patch
- https://git.kernel.org/stable/c/3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335 Patch
- https://git.kernel.org/stable/c/3f981138109f63232a5fb7165938d4c945cc1b9d Patch
- https://git.kernel.org/stable/c/49b21795b8e5654a7df3d910a12e1060da4c04cf Patch
- https://git.kernel.org/stable/c/89c301e929a0db14ebd94b4d97764ce1d6981653 Patch
- https://git.kernel.org/stable/c/93c276942e75de0e5bc91576300d292e968f5a02 Patch
- https://git.kernel.org/stable/c/f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4 Patch
- https://git.kernel.org/stable/c/f9f593e34d2fb67644372c8f7b033bdc622ad228 Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
Timeline
- nvd_ingest NVD