{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98872","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.377Z","datePublished":"2026-10-23T11:37:11.214Z","dateUpdated":"2026-10-26T06:55:53.758Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-26T06:55:53.758Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfreevxfs: don't BUG() on unknown typed-extent type\n\nvxfs_bmap_typed() handles four typed-extent types and calls BUG() in\nits default case, so an on-disk typed extent with any other type value\ncrashes the kernel. It is reachable from ioctl(FIBMAP) on a regular\nfile:\n\n  kernel BUG at fs/freevxfs/vxfs_bmap.c:230!\n  RIP: vxfs_bmap_typed fs/freevxfs/vxfs_bmap.c:230 [inline]\n       vxfs_bmap1+0x128a/0x12d0 fs/freevxfs/vxfs_bmap.c:257\n\nReplace the BUG() with WARN_ON_ONCE() and return 0 -- the value\nvxfs_bmap_typed() already returns on failure (and from the DEV4 case\nabove); vxfs_getblk() maps 0 to -EIO, so the ioctl fails cleanly."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/freevxfs/vxfs_bmap.c"],"versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"fe40a19d571cbb584eea46038ee919d8712b2d2c","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"500e9d5bf9eff2096a21b7ac25a0a06ca46ab821","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f1f2d54a576f0e4133b979e545abcfefd439c300","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"7ada9807e37103b41f586d34e3075e1209182b65","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"1284d687d46953fff9c0d969df108114611aca8b","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"405f13d7b270913e06e8e2b4de568985f94ef7d6","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"704d48d81dc41470e108811c32c577ada66192d4","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/freevxfs/vxfs_bmap.c"],"versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"2.6.12","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/fe40a19d571cbb584eea46038ee919d8712b2d2c"},{"url":"https://git.kernel.org/stable/c/500e9d5bf9eff2096a21b7ac25a0a06ca46ab821"},{"url":"https://git.kernel.org/stable/c/f1f2d54a576f0e4133b979e545abcfefd439c300"},{"url":"https://git.kernel.org/stable/c/7ada9807e37103b41f586d34e3075e1209182b65"},{"url":"https://git.kernel.org/stable/c/1284d687d46953fff9c0d969df108114611aca8b"},{"url":"https://git.kernel.org/stable/c/405f13d7b270913e06e8e2b4de568985f94ef7d6"},{"url":"https://git.kernel.org/stable/c/704d48d81dc41470e108811c32c577ada66192d4"}],"title":"freevxfs: don't BUG() on unknown typed-extent type","x_generator":{"engine":"bippy-1.2.0"}}}}