{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93150","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T16:02:15.089Z","datePublished":"2026-09-17T16:11:46.799Z","dateUpdated":"2026-09-17T16:11:46.799Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:46.799Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: Make nr_deadline_tasks an atomic_t\n\nThe nr_deadline_tasks variable in the cpuset structure was introduced by\ncommit 6c24849f5515 (\"sched/cpuset: Keep track of SCHED_DEADLINE task\nin cpusets\"). It is reported by sashiko [1] that nr_deadline_tasks\ncan currently be modified by inc_dl_tasks_cs() under rq->lock and\nby cpuset_attach() under cpuset_mutex. So if both updates happen\nsimultaneously, the nr_deadline_tasks variable can be corrupted leading\nto incorrect operations down the road.\n\nFix that by changing its type to atomic_t so that nr_deadline_tasks\nare always atomically updated. This fix patch is a low hanging fruit.\nIt can handle some of the races between a concurrent sched_setscheduler()\nand cpuset_can_attach()/cpuset_attach() calls, but not all of them like\nthe other issue raised by sashiko [2]. This will be handled hopefully\nin a future follow up patch.\n\n[1] https://sashiko.dev/#/patchset/20260626181923.133658-1-longman%40redhat.com\n[2] https://sashiko.dev/#/patchset/20260630033344.352702-1-longman%40redhat.com"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/cgroup/cpuset-internal.h","kernel/cgroup/cpuset.c"],"versions":[{"version":"6c24849f5515e4966d94fa5279bdff4acf2e9489","lessThan":"e422b32e6a57269ca8164c60674a78bee85cf5fb","status":"affected","versionType":"git"},{"version":"6c24849f5515e4966d94fa5279bdff4acf2e9489","lessThan":"e5965ae3f7c918151b87e5c925b7978afbeaf638","status":"affected","versionType":"git"},{"version":"6c24849f5515e4966d94fa5279bdff4acf2e9489","lessThan":"78d9daf5e13ad1448b7dfebac949936710ec7565","status":"affected","versionType":"git"},{"version":"6c24849f5515e4966d94fa5279bdff4acf2e9489","lessThan":"95220e1f18f6321008f021abc7d6f581f64bcb82","status":"affected","versionType":"git"},{"version":"5ac05ce5684315d0e71194a63febaf33921c3268","status":"affected","versionType":"git"},{"version":"43d8cbfefa7c59bd3b5fe184535eca476d45304e","status":"affected","versionType":"git"},{"version":"d1b4262b78cc7638642833252ae92fc586854ffb","status":"affected","versionType":"git"},{"version":"74fac5bb0d375d6b8f5e7997925063c509089c9c","status":"affected","versionType":"git"},{"version":"5.10.193","lessThan":"5.11","status":"affected","versionType":"semver"},{"version":"5.15.129","lessThan":"5.16","status":"affected","versionType":"semver"},{"version":"6.1.50","lessThan":"6.2","status":"affected","versionType":"semver"},{"version":"6.4.13","lessThan":"6.5","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/cgroup/cpuset-internal.h","kernel/cgroup/cpuset.c"],"versions":[{"version":"6.5","status":"affected"},{"version":"0","lessThan":"6.5","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.5","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.193"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.129"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e422b32e6a57269ca8164c60674a78bee85cf5fb"},{"url":"https://git.kernel.org/stable/c/e5965ae3f7c918151b87e5c925b7978afbeaf638"},{"url":"https://git.kernel.org/stable/c/78d9daf5e13ad1448b7dfebac949936710ec7565"},{"url":"https://git.kernel.org/stable/c/95220e1f18f6321008f021abc7d6f581f64bcb82"}],"title":"cgroup/cpuset: Make nr_deadline_tasks an atomic_t","x_generator":{"engine":"bippy-1.2.0"}}}}