{"api_version":"1","generated_at":"2026-04-19T01:15:27+00:00","cve":"CVE-2026-23388","urls":{"html":"https://cve.report/CVE-2026-23388","api":"https://cve.report/api/cve/CVE-2026-23388.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23388","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23388"},"summary":{"title":"Squashfs: check metadata block offset is within range","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-03-25 11:16:39","updated_at":"2026-04-18 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23388","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f400e12656ab518be107febfe2315fb1eab5a342 60f679f643f3f36a8571ea585e4ce5d93ef952b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f400e12656ab518be107febfe2315fb1eab5a342 3f68a9457a6190814377577374da75f872e0a013 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f400e12656ab518be107febfe2315fb1eab5a342 0c8ab092aec3ac4294940054772d30b511b16713 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f400e12656ab518be107febfe2315fb1eab5a342 6b847d65f5b0065e02080c61fad93d57d6686383 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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."}],"providerMetadata":{"dateUpdated":"2026-04-18T08:58:25.502Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23388","datePublished":"2026-03-25T10:28:06.224Z","dateReserved":"2026-01-13T15:37:46.008Z","dateUpdated":"2026-04-18T08:58:25.502Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-25 11:16:39","lastModifiedDate":"2026-04-18 09:16:22","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23388","Ordinal":"1","Title":"Squashfs: check metadata block offset is within range","CVE":"CVE-2026-23388","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23388","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Squashfs: check metadata block offset is within range"}]}}}