{"id":"CVE-2026-90428","state":"PUBLISHED","title":"iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array.\n\nRequest the IRQ only after cmdqv->vintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips.","publishedAt":"2026-09-17T16:09:49.783Z","updatedAt":"2026-10-19T09:03:31.894Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"b1605a56745f22670205f6561df5771bbbb62a99","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"2f627118b668659c6b195ac48beedb1bf8f53368","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","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/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"]}],"references":["https://git.kernel.org/stable/c/b1605a56745f22670205f6561df5771bbbb62a99","https://git.kernel.org/stable/c/2f627118b668659c6b195ac48beedb1bf8f53368","https://git.kernel.org/stable/c/a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d","https://git.kernel.org/stable/c/5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90428.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90428","state":"PUBLISHED","datePublished":"2026-09-17T16:09:49.783Z","dateUpdated":"2026-10-19T09:03:31.894Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.814Z"},"containers":{"cna":{"title":"iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array.\n\nRequest the IRQ only after cmdqv->vintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"b1605a56745f22670205f6561df5771bbbb62a99","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"2f627118b668659c6b195ac48beedb1bf8f53368","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d","versionType":"git"},{"version":"918eb5c856f6ce4cf93b4b38e4b5e156905c5943","status":"affected","lessThan":"5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","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/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b1605a56745f22670205f6561df5771bbbb62a99"},{"url":"https://git.kernel.org/stable/c/2f627118b668659c6b195ac48beedb1bf8f53368"},{"url":"https://git.kernel.org/stable/c/a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d"},{"url":"https://git.kernel.org/stable/c/5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:03:31.894Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}