{"id":"CVE-2026-99087","state":"PUBLISHED","title":"dm-integrity: fix NULL pointer dereference when the 'R' flag is used","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix NULL pointer dereference when the 'R' flag is used\n\nIf the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the\nuser activates the device in the 'R' mode, a crash in dm_integrity_resume\nhappens because the function attempts to read the journal containing the\nbitmap.\n\nThis patch makes dm-integrity skip any writes to the device in\ndm_integrity_resume if the device is activated in the 'R' mode.","publishedAt":"2026-10-23T12:45:05.714Z","updatedAt":"2026-10-23T12:45:05.714Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"2e25842f0e4423e0efb243f56153d842ed6b933f","versionType":"git"},{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"69ed43ed8a174465fca1ba6bfbde53e4618c8956","versionType":"git"},{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-integrity.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.18.58","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.12","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/md/dm-integrity.c"]}],"references":["https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f","https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956","https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/99xxx/CVE-2026-99087.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99087","state":"PUBLISHED","datePublished":"2026-10-23T12:45:05.714Z","dateUpdated":"2026-10-23T12:45:05.714Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.390Z"},"containers":{"cna":{"title":"dm-integrity: fix NULL pointer dereference when the 'R' flag is used","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-integrity: fix NULL pointer dereference when the 'R' flag is used\n\nIf the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the\nuser activates the device in the 'R' mode, a crash in dm_integrity_resume\nhappens because the function attempts to read the journal containing the\nbitmap.\n\nThis patch makes dm-integrity skip any writes to the device in\ndm_integrity_resume if the device is activated in the 'R' mode."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"2e25842f0e4423e0efb243f56153d842ed6b933f","versionType":"git"},{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"69ed43ed8a174465fca1ba6bfbde53e4618c8956","versionType":"git"},{"version":"468dfca38b1a6fbdccd195d875599cb7c8875cd9","status":"affected","lessThan":"7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-integrity.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.18.58","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.12","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/md/dm-integrity.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f"},{"url":"https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956"},{"url":"https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-23T12:45:05.714Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.18.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.2.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}