{"id":"CVE-2022-50236","state":"PUBLISHED","title":"iommu/mediatek: Fix crash on isr after kexec()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix crash on isr after kexec()\n\nIf the system is rebooted via isr(), the IRQ handler might\nbe triggered before the domain is initialized. Resulting on\nan invalid memory access error.\n\nFix:\n[    0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070\n[    0.501166] Call trace:\n[    0.501174]  report_iommu_fault+0x28/0xfc\n[    0.501180]  mtk_iommu_isr+0x10c/0x1c0\n\n[ joro: Fixed spelling in commit message ]","publishedAt":"2025-09-15T14:01:42.983Z","updatedAt":"2026-05-11T19:15:26.705Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"f13acee780cedb3e06a6dadf64d9104cccd2b9fc","versionType":"git"},{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"85cc8a187f2de7a91e2cea522e9406fa12999269","versionType":"git"},{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"00ef8885a945c37551547d8ac8361cacd20c4e42","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.0.17","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.3","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]}],"references":["https://git.kernel.org/stable/c/f13acee780cedb3e06a6dadf64d9104cccd2b9fc","https://git.kernel.org/stable/c/85cc8a187f2de7a91e2cea522e9406fa12999269","https://git.kernel.org/stable/c/00ef8885a945c37551547d8ac8361cacd20c4e42"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50236.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50236","state":"PUBLISHED","datePublished":"2025-09-15T14:01:42.983Z","dateUpdated":"2026-05-11T19:15:26.705Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-06-18T10:57:27.433Z"},"containers":{"cna":{"title":"iommu/mediatek: Fix crash on isr after kexec()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix crash on isr after kexec()\n\nIf the system is rebooted via isr(), the IRQ handler might\nbe triggered before the domain is initialized. Resulting on\nan invalid memory access error.\n\nFix:\n[    0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070\n[    0.501166] Call trace:\n[    0.501174]  report_iommu_fault+0x28/0xfc\n[    0.501180]  mtk_iommu_isr+0x10c/0x1c0\n\n[ joro: Fixed spelling in commit message ]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"f13acee780cedb3e06a6dadf64d9104cccd2b9fc","versionType":"git"},{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"85cc8a187f2de7a91e2cea522e9406fa12999269","versionType":"git"},{"version":"0df4fabe208d9576f2671d31e77cf46d20fdcd01","status":"affected","lessThan":"00ef8885a945c37551547d8ac8361cacd20c4e42","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.0.17","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.3","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f13acee780cedb3e06a6dadf64d9104cccd2b9fc"},{"url":"https://git.kernel.org/stable/c/85cc8a187f2de7a91e2cea522e9406fa12999269"},{"url":"https://git.kernel.org/stable/c/00ef8885a945c37551547d8ac8361cacd20c4e42"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:15:26.705Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.0.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}