Answer in brief
CVE-2026-72035 records a Unknown severity vulnerability in net/sched: sch_taprio: 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.
A CVSS score is not reported in the current record. 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 | >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <6ee5a7665a9080bcb05d703bf981a579436fd05e || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <18d580cb00c55805633bae45e90cf22ed6b8e424 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <e2b7ee61989f2d39df6c2cc06f9db1aea69bdb09 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <2dcebbd1ad2e180fe7b98bf346ced69a872e11e6 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <e056e1dfcddca877dd46d704e8ec9860cfc9ec44 | 6ee5a7665a9080bcb05d703bf981a579436fd05e, 18d580cb00c55805633bae45e90cf22ed6b8e424, e2b7ee61989f2d39df6c2cc06f9db1aea69bdb09, 2dcebbd1ad2e180fe7b98bf346ced69a872e11e6, e056e1dfcddca877dd46d704e8ec9860cfc9ec44 |
| Linux/Linuxgeneric | 4.20 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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_taprio: Replace direct dequeue call with peek and qdisc_dequeue_peeked When taprio's software path peeks a non-work-conserving child qdisc, the child stashes the peeked skb in its gso_skb; taprio_dequeue_from_txq() then takes the packet with a direct child ->dequeue() call, which ignores that stash, orphans the peeked skb and desyncs the child's qlen/backlog. With a qfq child 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_red and sch_sfb now do. The helper returns the child's stashed skb first and is a no-op when there is none, so a work-conserving child is unaffected and the gated path now consumes the skb whose length was charged to the budget.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72035 records a Unknown severity vulnerability in net/sched: sch_taprio: 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.
A CVSS score is not reported in the current record. 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 | >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <6ee5a7665a9080bcb05d703bf981a579436fd05e || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <18d580cb00c55805633bae45e90cf22ed6b8e424 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <e2b7ee61989f2d39df6c2cc06f9db1aea69bdb09 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <2dcebbd1ad2e180fe7b98bf346ced69a872e11e6 || >=5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 <e056e1dfcddca877dd46d704e8ec9860cfc9ec44 | 6ee5a7665a9080bcb05d703bf981a579436fd05e, 18d580cb00c55805633bae45e90cf22ed6b8e424, e2b7ee61989f2d39df6c2cc06f9db1aea69bdb09, 2dcebbd1ad2e180fe7b98bf346ced69a872e11e6, e056e1dfcddca877dd46d704e8ec9860cfc9ec44 |
| Linux/Linuxgeneric | 4.20 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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_taprio: Replace direct dequeue call with peek and qdisc_dequeue_peeked When taprio's software path peeks a non-work-conserving child qdisc, the child stashes the peeked skb in its gso_skb; taprio_dequeue_from_txq() then takes the packet with a direct child ->dequeue() call, which ignores that stash, orphans the peeked skb and desyncs the child's qlen/backlog. With a qfq child 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_red and sch_sfb now do. The helper returns the child's stashed skb first and is a no-op when there is none, so a work-conserving child is unaffected and the gated path now consumes the skb whose length was charged to the budget.
Quoted source text, attributed separately from HOL analysis.