{"id":"CVE-2026-99058","published":"2026-10-23T13:17:29.503","lastModified":"2026-10-23T13:17:29.503","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: Fix NULL current_pwq deref in chained work check\n\ncurrent_wq_worker() only tells us that %current is a kworker. It does\nnot guarantee that the worker is currently executing a work item, as\nworker->current_pwq is populated only while process_one_work() is running\nthe work function.\n\nis_chained_work() can be reached while queueing on a draining or\ndestroying workqueue. If a kworker outside work-item execution reaches\nthat path, current_wq_worker() returns a worker but worker->current_pwq is\nNULL, and the chained-work test can fault before it emits the intended\nwarning.\n\nGuard the chained-work test with worker->current_pwq. A kworker without\ncurrent_pwq is not executing work on the target workqueue, so the helper\nshould return false and let the draining/destroying warning fire.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/1a2668682e998039a027796b236319b380078a6a","tags":[]},{"url":"https://git.kernel.org/stable/c/3dc61af2998cfc7312d6e59bbdcd5eed074483f2","tags":[]},{"url":"https://git.kernel.org/stable/c/729d576df89c7e4341e58c452f8890620a610ac2","tags":[]},{"url":"https://git.kernel.org/stable/c/980db94e3eeefdd8a1c46f86412c33a7f7806f51","tags":[]},{"url":"https://git.kernel.org/stable/c/b12a25fb2b9d5dac80e419d695450cc17a51fdfd","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}