{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23388","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:46.008Z","datePublished":"2026-03-25T10:28:06.224Z","dateUpdated":"2026-05-11T22:05:54.748Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:05:54.748Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nSquashfs: check metadata block offset is within range\n\nSyzkaller reports a \"general protection fault in squashfs_copy_data\"\n\nThis is ultimately caused by a corrupted index look-up table, which\nproduces a negative metadata block offset.\n\nThis is subsequently passed to squashfs_copy_data (via\nsquashfs_read_metadata) where the negative offset causes an out of bounds\naccess.\n\nThe fix is to check that the offset is within range in\nsquashfs_read_metadata.  This will trap this and other cases."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/squashfs/cache.c"],"versions":[{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"60f679f643f3f36a8571ea585e4ce5d93ef952b5","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"3f68a9457a6190814377577374da75f872e0a013","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"0c8ab092aec3ac4294940054772d30b511b16713","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"6b847d65f5b0065e02080c61fad93d57d6686383","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"01ee0bcc29864b78249308e8b35042b09bbf5fe3","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"3b9499e7d677dd4366239a292238489a804936b2","status":"affected","versionType":"git"},{"version":"f400e12656ab518be107febfe2315fb1eab5a342","lessThan":"fdb24a820a5832ec4532273282cbd4f22c291a0d","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/squashfs/cache.c"],"versions":[{"version":"2.6.29","status":"affected"},{"version":"0","lessThan":"2.6.29","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.77","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.17","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.7","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.12.77"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.18.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"6.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/60f679f643f3f36a8571ea585e4ce5d93ef952b5"},{"url":"https://git.kernel.org/stable/c/3f68a9457a6190814377577374da75f872e0a013"},{"url":"https://git.kernel.org/stable/c/0c8ab092aec3ac4294940054772d30b511b16713"},{"url":"https://git.kernel.org/stable/c/6b847d65f5b0065e02080c61fad93d57d6686383"},{"url":"https://git.kernel.org/stable/c/9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c"},{"url":"https://git.kernel.org/stable/c/01ee0bcc29864b78249308e8b35042b09bbf5fe3"},{"url":"https://git.kernel.org/stable/c/3b9499e7d677dd4366239a292238489a804936b2"},{"url":"https://git.kernel.org/stable/c/fdb24a820a5832ec4532273282cbd4f22c291a0d"}],"title":"Squashfs: check metadata block offset is within range","x_generator":{"engine":"bippy-1.2.0"}}}}