{"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":"2026-09-17T16:11:40.099Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:40.099Z"},"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 <TASK>\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 </TASK>"}],"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-rc1","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-rc1"},{"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","x_generator":{"engine":"bippy-1.2.0"}}}}