{"id":"CVE-2026-98005","state":"PUBLISHED","title":"erofs: delimit inode_share cache key components","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: delimit inode_share cache key components\n\nPreviously, inode_share keys were encoded as follows:\n\n  fingerprint || domain_id\n\nIt would be better to have a separator between the fingerprint and domain\nID so that the fingerprint won't be parsed as part of a domain ID.\n\nChange the key encoding as follows:\n\n  domain_id || '\\0' || fingerprint\n\nSince domain_id is a NUL-terminated string, this makes the in-memory key\nindices unambiguous.","publishedAt":"2026-09-25T10:23:31.722Z","updatedAt":"2026-10-19T09:12:10.872Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0bf7d1c074dc4252223ae897560345ccc24100d","status":"affected","lessThan":"16322a67336cfeea0af4b05206ef8d0e0eda55bb","versionType":"git"},{"version":"e0bf7d1c074dc4252223ae897560345ccc24100d","status":"affected","lessThan":"96bf9831fbf423b8104f7948cd8fe7007ecfb46c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/xattr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/xattr.c"]}],"references":["https://git.kernel.org/stable/c/16322a67336cfeea0af4b05206ef8d0e0eda55bb","https://git.kernel.org/stable/c/96bf9831fbf423b8104f7948cd8fe7007ecfb46c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98005.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98005","state":"PUBLISHED","datePublished":"2026-09-25T10:23:31.722Z","dateUpdated":"2026-10-19T09:12:10.872Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:19:56.068Z"},"containers":{"cna":{"title":"erofs: delimit inode_share cache key components","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: delimit inode_share cache key components\n\nPreviously, inode_share keys were encoded as follows:\n\n  fingerprint || domain_id\n\nIt would be better to have a separator between the fingerprint and domain\nID so that the fingerprint won't be parsed as part of a domain ID.\n\nChange the key encoding as follows:\n\n  domain_id || '\\0' || fingerprint\n\nSince domain_id is a NUL-terminated string, this makes the in-memory key\nindices unambiguous."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0bf7d1c074dc4252223ae897560345ccc24100d","status":"affected","lessThan":"16322a67336cfeea0af4b05206ef8d0e0eda55bb","versionType":"git"},{"version":"e0bf7d1c074dc4252223ae897560345ccc24100d","status":"affected","lessThan":"96bf9831fbf423b8104f7948cd8fe7007ecfb46c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/xattr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.0","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/xattr.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/16322a67336cfeea0af4b05206ef8d0e0eda55bb"},{"url":"https://git.kernel.org/stable/c/96bf9831fbf423b8104f7948cd8fe7007ecfb46c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:12:10.872Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}