{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-93140", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.088Z", "datePublished": "2026-09-17T16:11:40.099Z", "dateUpdated": "2026-10-19T09:06:12.969Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:06:12.969Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudf: Mark LVID buffer as uptodate before marking it dirty\n\nWhen an I/O error occurs while writing the Logical Volume Integrity\nDescriptor (LVID) buffer to the block device, the block layer's completion\nhandler (`end_buffer_write_sync()`) clears the `BH_Uptodate` flag on the\nbuffer. However, the buffer still contains valid LVID data in memory. If\nthe filesystem is subsequently remounted read-write or synced,\n`udf_open_lvid()` or `udf_sync_fs()` will modify the LVID buffer and call\n`mark_buffer_dirty()`. This triggers a spurious\n`WARN_ON_ONCE(!buffer_uptodate(bh))` warning in `mark_buffer_dirty()`\nbecause the buffer is not marked uptodate, even though its in-memory\ncontents are valid and are about to be overwritten.\n\nTo prevent this spurious warning, unconditionally set the `BH_Uptodate`\nflag before calling `mark_buffer_dirty()` in `udf_open_lvid()` and\n`udf_sync_fs()`. This acknowledges that the in-memory buffer is valid and\nmatches the workaround previously applied to `udf_close_lvid()` in commit\n853a0c25baf9 (\"udf: Mark LVID buffer as uptodate before marking it dirty\").\nExtending this workaround ensures consistent behavior across all LVID\nupdates.\n\nBuffer I/O error on dev loop0, logical block 128, lost sync page write\n------------[ cut here ]------------\n!buffer_uptodate(bh)\nWARNING: fs/buffer.c:1087 at mark_buffer_dirty+0x299/0x410 fs/buffer.c:1087\n...\nCall Trace:\n \n udf_open_lvid+0x369/0x5b0 fs/udf/super.c:2078\n udf_reconfigure+0x336/0x540 fs/udf/super.c:679\n reconfigure_super+0x232/0x8f0 fs/super.c:1080\n vfs_cmd_reconfigure fs/fsopen.c:268 [inline]\n vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:297\n __do_sys_fsconfig fs/fsopen.c:463 [inline]\n __se_sys_fsconfig+0x6b9/0x810 fs/fsopen.c:350\n do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94\n " } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/udf/super.c" ], "versions": [ { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "e6461ef34f91ad7dbffdf912b3d661a7dd892931", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "359cea636f4a74a96c01a8050f155e12840c079a", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "a4c4e38b356ad4c1f90478124922917489137c08", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "8034ddf4751d9143c5ef7eebe3d4f33218fdd378", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "ee477e5204f764444e60699280abf5936c2a6ae6", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "11afe1912140f79d5af3091a54b181ef72fce1a5", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "c4058355d27488a3cd31c60c032335f77c4fdcfc", "status": "affected", "versionType": "git" }, { "version": "853a0c25baf96b028de1654bea1e0c8857eadf3d", "lessThan": "fb0601134c7e51728bd098abc6909315de1e5d86", "status": "affected", "versionType": "git" }, { "version": "c7da4ed95a78e38fdaffb06eaf1a3f3318b1add6", "status": "affected", "versionType": "git" }, { "version": "c005218328597211008a4d33a91e2952798e3556", "status": "affected", "versionType": "git" }, { "version": "1357ed0b4b9db30846377febb40a847d6103c991", "status": "affected", "versionType": "git" }, { "version": "43f4a516b2f5492bc597f3753b693ad8adc62748", "status": "affected", "versionType": "git" }, { "version": "2.6.27.62", "lessThan": "2.6.28", "status": "affected", "versionType": "semver" }, { "version": "2.6.32.57", "lessThan": "2.6.33", "status": "affected", "versionType": "semver" }, { "version": "3.0.21", "lessThan": "3.1", "status": "affected", "versionType": "semver" }, { "version": "3.2.6", "lessThan": "3.3", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/udf/super.c" ], "versions": [ { "version": "3.3", "status": "affected" }, { "version": "0", "lessThan": "3.3", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "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": "3.3", "versionEndExcluding": "5.10.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "5.15.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.1.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.6.157" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.12.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.18.52" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.2.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27.62" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32.57" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0.21" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/e6461ef34f91ad7dbffdf912b3d661a7dd892931" }, { "url": "https://git.kernel.org/stable/c/359cea636f4a74a96c01a8050f155e12840c079a" }, { "url": "https://git.kernel.org/stable/c/a4c4e38b356ad4c1f90478124922917489137c08" }, { "url": "https://git.kernel.org/stable/c/8034ddf4751d9143c5ef7eebe3d4f33218fdd378" }, { "url": "https://git.kernel.org/stable/c/ee477e5204f764444e60699280abf5936c2a6ae6" }, { "url": "https://git.kernel.org/stable/c/11afe1912140f79d5af3091a54b181ef72fce1a5" }, { "url": "https://git.kernel.org/stable/c/c4058355d27488a3cd31c60c032335f77c4fdcfc" }, { "url": "https://git.kernel.org/stable/c/fb0601134c7e51728bd098abc6909315de1e5d86" } ], "title": "udf: Mark LVID buffer as uptodate before marking it dirty", 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