{"id":"CVE-2026-93109","state":"PUBLISHED","title":"RDMA/mlx5: Drain RCU callbacks during module teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Drain RCU callbacks during module teardown\n\ndevx_free_subscription() can remain queued after the last DevX event file\ndrops its module reference or an auxiliary driver detaches its devices.\nmlx5_ib can then unload before the callback runs.\n\nRegistration error unwind has the same risk because driver registration\ncan attach existing devices before failing. Wait after all drivers have\nstopped.","publishedAt":"2026-09-17T16:11:19.135Z","updatedAt":"2026-10-19T09:05:41.900Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"ca428e597f12b278bf158356e34641e6386cfa82","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"59d60e04afd012f07e996d2e34cb90a4ec6f5cff","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"2f946e7839f677fa14574b6babad14b37ae0bbbe","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"4be7810ba70291abb2f68cc6db0ae1b93ee9c76a","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"7babc25d8dd5b7642920fbc0737cfd1469e7025b","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"4664368b9bd9d5d79ebad24056b98c34b9fed20f","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"e37cdd75f8d61c1123d324ae5667ac3da562290e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/main.c"]}],"references":["https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82","https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff","https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe","https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a","https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b","https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f","https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93109.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93109","state":"PUBLISHED","datePublished":"2026-09-17T16:11:19.135Z","dateUpdated":"2026-10-19T09:05:41.900Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.085Z"},"containers":{"cna":{"title":"RDMA/mlx5: Drain RCU callbacks during module teardown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Drain RCU callbacks during module teardown\n\ndevx_free_subscription() can remain queued after the last DevX event file\ndrops its module reference or an auxiliary driver detaches its devices.\nmlx5_ib can then unload before the callback runs.\n\nRegistration error unwind has the same risk because driver registration\ncan attach existing devices before failing. Wait after all drivers have\nstopped."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"ca428e597f12b278bf158356e34641e6386cfa82","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"59d60e04afd012f07e996d2e34cb90a4ec6f5cff","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"2f946e7839f677fa14574b6babad14b37ae0bbbe","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"4be7810ba70291abb2f68cc6db0ae1b93ee9c76a","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"7babc25d8dd5b7642920fbc0737cfd1469e7025b","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"4664368b9bd9d5d79ebad24056b98c34b9fed20f","versionType":"git"},{"version":"6898d1c661d79f4707d8ba82991b2195822780ca","status":"affected","lessThan":"e37cdd75f8d61c1123d324ae5667ac3da562290e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/mlx5/main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82"},{"url":"https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff"},{"url":"https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe"},{"url":"https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a"},{"url":"https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b"},{"url":"https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f"},{"url":"https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:05:41.900Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}