{"id":"CVE-2022-50205","state":"PUBLISHED","title":"ext2: Add more validity checks for inode counts","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next2: Add more validity checks for inode counts\n\nAdd checks verifying number of inodes stored in the superblock matches\nthe number computed from number of inodes per group. Also verify we have\nat least one block worth of inodes per group. This prevents crashes on\ncorrupted filesystems.","publishedAt":"2025-06-18T11:03:45.889Z","updatedAt":"2026-05-11T19:14:49.790Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"0bcdc31094a12b4baf59e241feabc9787cf635fa","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"07303a9abe3a997d9864fb4315e34b5acfe8fc25","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"b3f423683818cfe15de14d5d9dff44148ff16bbf","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"d08bb199a406424a8ed0009efdf41710e6d849ee","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"96b18d3a1be0354ccce43f0ef61b5a3d7e432552","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"7a48fdc88a3c35e046a6a0a38eba00f21c65b16e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"5e63c5fe9123fa76ffaeff26c211308736ec3a07","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"fa78f336937240d1bc598db817d638086060e7e9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.14.291","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.256","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.211","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.137","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.61","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.18","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19.2","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/super.c"]}],"references":["https://git.kernel.org/stable/c/0bcdc31094a12b4baf59e241feabc9787cf635fa","https://git.kernel.org/stable/c/07303a9abe3a997d9864fb4315e34b5acfe8fc25","https://git.kernel.org/stable/c/b3f423683818cfe15de14d5d9dff44148ff16bbf","https://git.kernel.org/stable/c/d08bb199a406424a8ed0009efdf41710e6d849ee","https://git.kernel.org/stable/c/96b18d3a1be0354ccce43f0ef61b5a3d7e432552","https://git.kernel.org/stable/c/7a48fdc88a3c35e046a6a0a38eba00f21c65b16e","https://git.kernel.org/stable/c/5e63c5fe9123fa76ffaeff26c211308736ec3a07","https://git.kernel.org/stable/c/fa78f336937240d1bc598db817d638086060e7e9"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50205.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50205","state":"PUBLISHED","datePublished":"2025-06-18T11:03:45.889Z","dateUpdated":"2026-05-11T19:14:49.790Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-06-18T10:57:27.428Z"},"containers":{"cna":{"title":"ext2: Add more validity checks for inode counts","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next2: Add more validity checks for inode counts\n\nAdd checks verifying number of inodes stored in the superblock matches\nthe number computed from number of inodes per group. Also verify we have\nat least one block worth of inodes per group. This prevents crashes on\ncorrupted filesystems."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"0bcdc31094a12b4baf59e241feabc9787cf635fa","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"07303a9abe3a997d9864fb4315e34b5acfe8fc25","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"b3f423683818cfe15de14d5d9dff44148ff16bbf","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"d08bb199a406424a8ed0009efdf41710e6d849ee","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"96b18d3a1be0354ccce43f0ef61b5a3d7e432552","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"7a48fdc88a3c35e046a6a0a38eba00f21c65b16e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"5e63c5fe9123fa76ffaeff26c211308736ec3a07","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"fa78f336937240d1bc598db817d638086060e7e9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.14.291","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.256","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.211","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.137","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.61","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.18.18","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19.2","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/super.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0bcdc31094a12b4baf59e241feabc9787cf635fa"},{"url":"https://git.kernel.org/stable/c/07303a9abe3a997d9864fb4315e34b5acfe8fc25"},{"url":"https://git.kernel.org/stable/c/b3f423683818cfe15de14d5d9dff44148ff16bbf"},{"url":"https://git.kernel.org/stable/c/d08bb199a406424a8ed0009efdf41710e6d849ee"},{"url":"https://git.kernel.org/stable/c/96b18d3a1be0354ccce43f0ef61b5a3d7e432552"},{"url":"https://git.kernel.org/stable/c/7a48fdc88a3c35e046a6a0a38eba00f21c65b16e"},{"url":"https://git.kernel.org/stable/c/5e63c5fe9123fa76ffaeff26c211308736ec3a07"},{"url":"https://git.kernel.org/stable/c/fa78f336937240d1bc598db817d638086060e7e9"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:14:49.790Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.14.291"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.19.256"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.4.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.137"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.61"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.19.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}