Answer in brief
CVE-2026-99058 records a Unknown severity vulnerability in workqueue: Fix NULL current_pwq deref in chained work check. 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 | >=8d03ecfe471802d6afe97da97722b6924533aa82 <3dc61af2998cfc7312d6e59bbdcd5eed074483f2 || >=8d03ecfe471802d6afe97da97722b6924533aa82 <729d576df89c7e4341e58c452f8890620a610ac2 || >=8d03ecfe471802d6afe97da97722b6924533aa82 <b12a25fb2b9d5dac80e419d695450cc17a51fdfd || >=8d03ecfe471802d6afe97da97722b6924533aa82 <1a2668682e998039a027796b236319b380078a6a || >=8d03ecfe471802d6afe97da97722b6924533aa82 <980db94e3eeefdd8a1c46f86412c33a7f7806f51 | 3dc61af2998cfc7312d6e59bbdcd5eed074483f2, 729d576df89c7e4341e58c452f8890620a610ac2, b12a25fb2b9d5dac80e419d695450cc17a51fdfd, 1a2668682e998039a027796b236319b380078a6a, 980db94e3eeefdd8a1c46f86412c33a7f7806f51 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: workqueue: Fix NULL current_pwq deref in chained work check current_wq_worker() only tells us that %current is a kworker. It does not guarantee that the worker is currently executing a work item, as worker->current_pwq is populated only while process_one_work() is running the work function. is_chained_work() can be reached while queueing on a draining or destroying workqueue. If a kworker outside work-item execution reaches that path, current_wq_worker() returns a worker but worker->current_pwq is NULL, and the chained-work test can fault before it emits the intended warning. Guard the chained-work test with worker->current_pwq. A kworker without current_pwq is not executing work on the target workqueue, so the helper should return false and let the draining/destroying warning fire.
Quoted source text, attributed separately from HOL analysis.