Answer in brief
CVE-2026-72036 records a High severity (CVSS 7.8) vulnerability in net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <3e5fd9d14f2d228e7260251f2e4a1d41ba8f705a || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <eb1a9637f0bd84b5db8803af65dfb1f44785406f || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <7a5a1582710981ef6637de9f074a60a5b1d63222 || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <86a61e46a1919e8abf4d227c204773dabb24068a || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <1b9cc255e8089606b92b2adf504e334573682821 || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <5889064919a1e5c0a9469c54895000414fc46944 || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <fffeb2ab5eeb823d4c2330571a098f63237c9049 || >=77be155cba4e163e8bba9fd27222a8b6189ec4f7 <54f6b0c843e228d499eb4b6bbb89df68cad9ad5d | 3e5fd9d14f2d228e7260251f2e4a1d41ba8f705a, eb1a9637f0bd84b5db8803af65dfb1f44785406f, 7a5a1582710981ef6637de9f074a60a5b1d63222, 86a61e46a1919e8abf4d227c204773dabb24068a, 1b9cc255e8089606b92b2adf504e334573682821, 5889064919a1e5c0a9469c54895000414fc46944, fffeb2ab5eeb823d4c2330571a098f63237c9049, 54f6b0c843e228d499eb4b6bbb89df68cad9ad5d |
| Linux/Linuxgeneric | 2.6.29 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.