{"id":"CVE-2026-90434","revision":null,"records":[{"revision":"14a35f07760d4c249dafa6c41634fb5e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90434","aliases":[],"title":"isofs: release zisofs block pointer buffer head","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nisofs: release zisofs block pointer buffer head\n\nzisofs_fill_pages() reads the compressed block pointer table. The error\npaths release the current buffer_head, the loop also releases the old\nbuffer_head when it advances. However, the success path leaves the last\nbuffer_head referenced. Release it before returning success.","state":0,"publishedAt":"2026-09-17T16:09:53.716+00:00","modifiedAt":"2026-10-19T09:03:39.223+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/isofs/compress.c\"\n ],\n \"versions\": [\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"dbcc7d1b818162aeab2e97fd217d86546d9fde15\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"ec33e6b7a1de20d7e623b12633191a855445657d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"0c2c54a7d174edc845f7bae24179fe72a926d10f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"5677737c2cedf417c0fcf61540b9cef0e62273d4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"f2a1611065c700a374b31c5cc8a7587f5e3bfe73\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"106e1a3b2b3454fbda63a59e9290cb9a253f81aa\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"3371d30a97a257b7b5f2c8009612e9d452180f0a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"59bc055211b8d266ab6089158058bf8268e02006\",\n \"lessThan\": \"2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"fs/isofs/compress.c\"\n ],\n \"versions\": [\n {\n \"version\": \"2.6.33\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"2.6.33\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.270\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.221\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.188\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.157\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.110\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.52\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2.6\",\n \"lessThanOrEqual\": \"7.2.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.3\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/dbcc7d1b818162aeab2e97fd217d86546d9fde15","https://git.kernel.org/stable/c/ec33e6b7a1de20d7e623b12633191a855445657d","https://git.kernel.org/stable/c/0c2c54a7d174edc845f7bae24179fe72a926d10f","https://git.kernel.org/stable/c/5677737c2cedf417c0fcf61540b9cef0e62273d4","https://git.kernel.org/stable/c/f2a1611065c700a374b31c5cc8a7587f5e3bfe73","https://git.kernel.org/stable/c/106e1a3b2b3454fbda63a59e9290cb9a253f81aa","https://git.kernel.org/stable/c/3371d30a97a257b7b5f2c8009612e9d452180f0a","https://git.kernel.org/stable/c/2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90434","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90434","identifiers":["CVE-2026-90434"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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