CVE-2026-72036
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 3e5fd9d14f2d228e7260251f2e4a1d41ba8f705a | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | eb1a9637f0bd84b5db8803af65dfb1f44785406f | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 7a5a1582710981ef6637de9f074a60a5b1d63222 | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 86a61e46a1919e8abf4d227c204773dabb24068a | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 1b9cc255e8089606b92b2adf504e334573682821 | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 5889064919a1e5c0a9469c54895000414fc46944 | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | fffeb2ab5eeb823d4c2330571a098f63237c9049 | Unavailable | None listed |
| 77be155cba4e163e8bba9fd27222a8b6189ec4f7 | affected | git | 54f6b0c843e228d499eb4b6bbb89df68cad9ad5d | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.29 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.29 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |