{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49414", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.568Z", "datePublished": "2025-02-26T02:12:35.083Z", "dateUpdated": "2026-05-11T18:59:21.432Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:59:21.432Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix race condition between ext4_write and ext4_convert_inline_data\n\nHulk Robot reported a BUG_ON:\n ==================================================================\n EXT4-fs error (device loop3): ext4_mb_generate_buddy:805: group 0,\n block bitmap and bg descriptor inconsistent: 25 vs 31513 free clusters\n kernel BUG at fs/ext4/ext4_jbd2.c:53!\n invalid opcode: 0000 [#1] SMP KASAN PTI\n CPU: 0 PID: 25371 Comm: syz-executor.3 Not tainted 5.10.0+ #1\n RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline]\n RIP: 0010:__ext4_journal_stop+0x10e/0x110 fs/ext4/ext4_jbd2.c:116\n [...]\n Call Trace:\n ext4_write_inline_data_end+0x59a/0x730 fs/ext4/inline.c:795\n generic_perform_write+0x279/0x3c0 mm/filemap.c:3344\n ext4_buffered_write_iter+0x2e3/0x3d0 fs/ext4/file.c:270\n ext4_file_write_iter+0x30a/0x11c0 fs/ext4/file.c:520\n do_iter_readv_writev+0x339/0x3c0 fs/read_write.c:732\n do_iter_write+0x107/0x430 fs/read_write.c:861\n vfs_writev fs/read_write.c:934 [inline]\n do_pwritev+0x1e5/0x380 fs/read_write.c:1031\n [...]\n ==================================================================\n\nAbove issue may happen as follows:\n cpu1 cpu2\n__________________________|__________________________\ndo_pwritev\n vfs_writev\n do_iter_write\n ext4_file_write_iter\n ext4_buffered_write_iter\n generic_perform_write\n ext4_da_write_begin\n vfs_fallocate\n ext4_fallocate\n ext4_convert_inline_data\n ext4_convert_inline_data_nolock\n ext4_destroy_inline_data_nolock\n clear EXT4_STATE_MAY_INLINE_DATA\n ext4_map_blocks\n ext4_ext_map_blocks\n ext4_mb_new_blocks\n ext4_mb_regular_allocator\n ext4_mb_good_group_nolock\n ext4_mb_init_group\n ext4_mb_init_cache\n ext4_mb_generate_buddy --> error\n ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)\n ext4_restore_inline_data\n set EXT4_STATE_MAY_INLINE_DATA\n ext4_block_write_begin\n ext4_da_write_end\n ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)\n ext4_write_inline_data_end\n handle=NULL\n ext4_journal_stop(handle)\n __ext4_journal_stop\n ext4_put_nojournal(handle)\n ref_cnt = (unsigned long)handle\n BUG_ON(ref_cnt == 0) ---> BUG_ON\n\nThe lock held by ext4_convert_inline_data is xattr_sem, but the lock\nheld by generic_perform_write is i_rwsem. Therefore, the two locks can\nbe concurrent.\n\nTo solve above issue, we add inode_lock() for ext4_convert_inline_data().\nAt the same time, move ext4_convert_inline_data() in front of\next4_punch_hole(), remove similar handling from ext4_punch_hole()." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ext4/extents.c", "fs/ext4/inode.c" ], "versions": [ { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "18881d7e517169193d9ef6c89c7f322e3e164277", "status": "affected", "versionType": "git" }, { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "91f90b571f1a23f5b8a9c2b68a9aa5d6981a3c3d", "status": "affected", "versionType": "git" }, { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "14602353b350950b551eccc6b46411aa3b12ffe2", "status": "affected", "versionType": "git" }, { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "725e00cb7039eae291890f1bb19bc867176745f6", "status": "affected", "versionType": "git" }, { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "ccc6639f831bee91aa8b41c8a1cdd020ecfb9f32", "status": "affected", "versionType": "git" }, { "version": "0c8d414f163f5d35e43a4de7a6e5ee8c253fcccf", "lessThan": "f87c7a4b084afc13190cbb263538e444cb2b392a", "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/ext4/extents.c", "fs/ext4/inode.c" ], "versions": [ { "version": "3.8", "status": "affected" }, { "version": "0", "lessThan": "3.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.207", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.132", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.46", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "3.8", "versionEndExcluding": "5.4.207" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.10.132" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.15.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.17.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.18.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.8", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/18881d7e517169193d9ef6c89c7f322e3e164277" }, { "url": "https://git.kernel.org/stable/c/91f90b571f1a23f5b8a9c2b68a9aa5d6981a3c3d" }, { "url": "https://git.kernel.org/stable/c/14602353b350950b551eccc6b46411aa3b12ffe2" }, { "url": "https://git.kernel.org/stable/c/725e00cb7039eae291890f1bb19bc867176745f6" }, { "url": "https://git.kernel.org/stable/c/ccc6639f831bee91aa8b41c8a1cdd020ecfb9f32" }, { "url": "https://git.kernel.org/stable/c/f87c7a4b084afc13190cbb263538e444cb2b392a" } ], "title": "ext4: fix race condition between ext4_write and ext4_convert_inline_data", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49414", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:41:09.175529Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-362", "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:50.027Z" } } ] } }