{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99058","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.388Z","datePublished":"2026-10-23T12:22:45.920Z","dateUpdated":"2026-10-30T12:41:24.511Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-30T12:41:24.511Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/workqueue.c"],"versions":[{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"73bec442f913855907b63225306dd162c18e5c71","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"6877de2c75f0dd342099a1357856e6c8d474abc3","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"54361e4924c2c52a501b74ef10217c32f45fccfa","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"3dc61af2998cfc7312d6e59bbdcd5eed074483f2","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"729d576df89c7e4341e58c452f8890620a610ac2","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"b12a25fb2b9d5dac80e419d695450cc17a51fdfd","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"1a2668682e998039a027796b236319b380078a6a","status":"affected","versionType":"git"},{"version":"8d03ecfe471802d6afe97da97722b6924533aa82","lessThan":"980db94e3eeefdd8a1c46f86412c33a7f7806f51","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/workqueue.c"],"versions":[{"version":"3.9","status":"affected"},{"version":"0","lessThan":"3.9","status":"unaffected","versionType":"semver"},{"version":"5.10.273","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.224","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.191","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.11","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/73bec442f913855907b63225306dd162c18e5c71"},{"url":"https://git.kernel.org/stable/c/6877de2c75f0dd342099a1357856e6c8d474abc3"},{"url":"https://git.kernel.org/stable/c/54361e4924c2c52a501b74ef10217c32f45fccfa"},{"url":"https://git.kernel.org/stable/c/3dc61af2998cfc7312d6e59bbdcd5eed074483f2"},{"url":"https://git.kernel.org/stable/c/729d576df89c7e4341e58c452f8890620a610ac2"},{"url":"https://git.kernel.org/stable/c/b12a25fb2b9d5dac80e419d695450cc17a51fdfd"},{"url":"https://git.kernel.org/stable/c/1a2668682e998039a027796b236319b380078a6a"},{"url":"https://git.kernel.org/stable/c/980db94e3eeefdd8a1c46f86412c33a7f7806f51"}],"title":"workqueue: Fix NULL current_pwq deref in chained work check","x_generator":{"engine":"bippy-1.2.0"}}}}