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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-72036 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked multiq_dequeue() takes a packet from a band's child with a direct ->dequeue() call after multiq_peek() peeked it. When the child is non-work-conserving the peek stashes the skb in the child's gso_skb, so the direct dequeue returns a different skb and orphans the stash, desyncing the child's qlen/backlog. With a qfq child reached through a peeking parent (e.g. tbf) this re-enters the child on an emptied list and dereferences NULL, panicking the kernel from softirq on ordinary egress. Take the packet through qdisc_dequeue_peeked(), as sch_prio already does and as sch_red and sch_sfb were just fixed to do. The helper is a no-op when the child has no stash, so a work-conserving child is unaffected.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1b9cc255e8089606b92b2adf504e334573682821 kernel.org
https://git.kernel.org/stable/c/3e5fd9d14f2d228e7260251f2e4a1d41ba8f705a kernel.org
https://git.kernel.org/stable/c/54f6b0c843e228d499eb4b6bbb89df68cad9ad5d kernel.org
https://git.kernel.org/stable/c/5889064919a1e5c0a9469c54895000414fc46944 kernel.org
https://git.kernel.org/stable/c/7a5a1582710981ef6637de9f074a60a5b1d63222 kernel.org
https://git.kernel.org/stable/c/86a61e46a1919e8abf4d227c204773dabb24068a kernel.org
https://git.kernel.org/stable/c/eb1a9637f0bd84b5db8803af65dfb1f44785406f kernel.org
https://git.kernel.org/stable/c/fffeb2ab5eeb823d4c2330571a098f63237c9049 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-72036
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org