{"api_version":"1","generated_at":"2026-09-04T11:59:01+00:00","cve":"CVE-2026-72316","urls":{"html":"https://cve.report/CVE-2026-72316","api":"https://cve.report/api/cve/CVE-2026-72316.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72316","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72316"},"summary":{"title":"dm era: fix NULL pointer dereference in metadata_open()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm era: fix NULL pointer dereference in metadata_open()\n\nmetadata_open() returns NULL when kzalloc_obj() fails, but the\ncaller era_ctr() only checks IS_ERR(md).  Since IS_ERR(NULL)\nreturns false, the NULL pointer is treated as a valid result\nand later assigned to era->md, leading to a NULL pointer\ndereference when the metadata is accessed.\n\nFix this by returning ERR_PTR(-ENOMEM) on allocation failure,\nconsistent with dm-cache-metadata.c, dm-thin-metadata.c, and\ndm-clone-metadata.c which all use ERR_PTR(-ENOMEM) for the\nsame pattern.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:04","updated_at":"2026-08-17 06:18:34"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3","name":"https://git.kernel.org/stable/c/889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b69ea153d30ce19ca8997eeeca1e2219fae5a29b","name":"https://git.kernel.org/stable/c/b69ea153d30ce19ca8997eeeca1e2219fae5a29b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9ae672606c17891d90b282e3490b817620549599","name":"https://git.kernel.org/stable/c/9ae672606c17891d90b282e3490b817620549599","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd5a80128bdfc93b1cae935a70da000b8c483e6e","name":"https://git.kernel.org/stable/c/bd5a80128bdfc93b1cae935a70da000b8c483e6e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/01c49eae7c6256f2d8cc08210a2bac3ee070e43a","name":"https://git.kernel.org/stable/c/01c49eae7c6256f2d8cc08210a2bac3ee070e43a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/14e03ecd3b1b5fc03c082b27a2f8889f8290c30e","name":"https://git.kernel.org/stable/c/14e03ecd3b1b5fc03c082b27a2f8889f8290c30e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a705e056c2f3dd067fb2ff414f0537530baa090b","name":"https://git.kernel.org/stable/c/a705e056c2f3dd067fb2ff414f0537530baa090b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8","name":"https://git.kernel.org/stable/c/17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72316","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72316","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eec40579d84873dfb7021eb24c50360f073237c5 a705e056c2f3dd067fb2ff414f0537530baa090b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eec40579d84873dfb7021eb24c50360f073237c5 bd5a80128bdfc93b1cae935a70da000b8c483e6e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eec40579d84873dfb7021eb24c50360f073237c5 17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eec40579d84873dfb7021eb24c50360f073237c5 889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72316","cve":"CVE-2026-72316","epss":"0.002200000","percentile":"0.127050000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/md/dm-era-target.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a705e056c2f3dd067fb2ff414f0537530baa090b","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"bd5a80128bdfc93b1cae935a70da000b8c483e6e","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"01c49eae7c6256f2d8cc08210a2bac3ee070e43a","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"14e03ecd3b1b5fc03c082b27a2f8889f8290c30e","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"b69ea153d30ce19ca8997eeeca1e2219fae5a29b","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"},{"lessThan":"9ae672606c17891d90b282e3490b817620549599","status":"affected","version":"eec40579d84873dfb7021eb24c50360f073237c5","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/md/dm-era-target.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.15"},{"lessThan":"3.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"3.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"3.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm era: fix NULL pointer dereference in metadata_open()\n\nmetadata_open() returns NULL when kzalloc_obj() fails, but the\ncaller era_ctr() only checks IS_ERR(md).  Since IS_ERR(NULL)\nreturns false, the NULL pointer is treated as a valid result\nand later assigned to era->md, leading to a NULL pointer\ndereference when the metadata is accessed.\n\nFix this by returning ERR_PTR(-ENOMEM) on allocation failure,\nconsistent with dm-cache-metadata.c, dm-thin-metadata.c, and\ndm-clone-metadata.c which all use ERR_PTR(-ENOMEM) for the\nsame pattern."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:12:21.813Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a705e056c2f3dd067fb2ff414f0537530baa090b"},{"url":"https://git.kernel.org/stable/c/bd5a80128bdfc93b1cae935a70da000b8c483e6e"},{"url":"https://git.kernel.org/stable/c/17eb2ab13edd0b06ce6f996c5fd450d7efabb2e8"},{"url":"https://git.kernel.org/stable/c/889374b8e4a60d13fe4a5a8ae3a311ca93d1a2c3"},{"url":"https://git.kernel.org/stable/c/01c49eae7c6256f2d8cc08210a2bac3ee070e43a"},{"url":"https://git.kernel.org/stable/c/14e03ecd3b1b5fc03c082b27a2f8889f8290c30e"},{"url":"https://git.kernel.org/stable/c/b69ea153d30ce19ca8997eeeca1e2219fae5a29b"},{"url":"https://git.kernel.org/stable/c/9ae672606c17891d90b282e3490b817620549599"}],"title":"dm era: fix NULL pointer dereference in metadata_open()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72316","datePublished":"2026-08-15T05:55:30.399Z","dateReserved":"2026-08-09T03:40:39.919Z","dateUpdated":"2026-08-17T05:12:21.813Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:04","lastModifiedDate":"2026-08-17 06:18:34","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72316","Ordinal":"1","Title":"dm era: fix NULL pointer dereference in metadata_open()","CVE":"CVE-2026-72316","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72316","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm era: fix NULL pointer dereference in metadata_open()\n\nmetadata_open() returns NULL when kzalloc_obj() fails, but the\ncaller era_ctr() only checks IS_ERR(md).  Since IS_ERR(NULL)\nreturns false, the NULL pointer is treated as a valid result\nand later assigned to era->md, leading to a NULL pointer\ndereference when the metadata is accessed.\n\nFix this by returning ERR_PTR(-ENOMEM) on allocation failure,\nconsistent with dm-cache-metadata.c, dm-thin-metadata.c, and\ndm-clone-metadata.c which all use ERR_PTR(-ENOMEM) for the\nsame pattern.","Type":"Description","Title":"dm era: fix NULL pointer dereference in metadata_open()"}]}}}