{"id":"CVE-2024-53155","state":"PUBLISHED","title":"ocfs2: fix uninitialized value in ocfs2_file_read_iter()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix uninitialized value in ocfs2_file_read_iter()\n\nSyzbot has reported the following KMSAN splat:\n\nBUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80\n ocfs2_file_read_iter+0x9a4/0xf80\n __io_read+0x8d4/0x20f0\n io_read+0x3e/0xf0\n io_issue_sqe+0x42b/0x22c0\n io_wq_submit_work+0xaf9/0xdc0\n io_worker_handle_work+0xd13/0x2110\n io_wq_worker+0x447/0x1410\n ret_from_fork+0x6f/0x90\n ret_from_fork_asm+0x1a/0x30\n\nUninit was created at:\n __alloc_pages_noprof+0x9a7/0xe00\n alloc_pages_mpol_noprof+0x299/0x990\n alloc_pages_noprof+0x1bf/0x1e0\n allocate_slab+0x33a/0x1250\n ___slab_alloc+0x12ef/0x35e0\n kmem_cache_alloc_bulk_noprof+0x486/0x1330\n __io_alloc_req_refill+0x84/0x560\n io_submit_sqes+0x172f/0x2f30\n __se_sys_io_uring_enter+0x406/0x41c0\n __x64_sys_io_uring_enter+0x11f/0x1a0\n x64_sys_call+0x2b54/0x3ba0\n do_syscall_64+0xcd/0x1e0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nSince an instance of 'struct kiocb' may be passed from the block layer\nwith 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()'\nand use it from where 'ocfs2_dio_end_io()' might take care, i.e. in\n'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'.","publishedAt":"2024-12-24T11:28:54.241Z","updatedAt":"2026-05-11T20:51:55.233Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"6c8f8d1e595dabd5389817f6d798cc8bd95c40ab","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"f4078ef38d3163e6be47403a619558b19c4bfccd","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"8c966150d5abff58c3c2bdb9a6e63fd773782905","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"83f8713a0ef1d55d6a287bcfadcaab8245ac5098","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"8e0de82ed18ba0e71f817adbd81317fd1032ca5a","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"366c933c2ab34dd6551acc03b4872726b7605143","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"dc78efe556fed162d48736ef24066f42e463e27c","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"adc77b19f62d7e80f98400b2fca9d700d2afdd6f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/aops.h","fs/ocfs2/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.22","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.22","versionType":"semver"},{"version":"4.19.325","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/aops.h","fs/ocfs2/file.c"]}],"references":["https://git.kernel.org/stable/c/6c8f8d1e595dabd5389817f6d798cc8bd95c40ab","https://git.kernel.org/stable/c/f4078ef38d3163e6be47403a619558b19c4bfccd","https://git.kernel.org/stable/c/66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f","https://git.kernel.org/stable/c/8c966150d5abff58c3c2bdb9a6e63fd773782905","https://git.kernel.org/stable/c/83f8713a0ef1d55d6a287bcfadcaab8245ac5098","https://git.kernel.org/stable/c/8e0de82ed18ba0e71f817adbd81317fd1032ca5a","https://git.kernel.org/stable/c/366c933c2ab34dd6551acc03b4872726b7605143","https://git.kernel.org/stable/c/dc78efe556fed162d48736ef24066f42e463e27c","https://git.kernel.org/stable/c/adc77b19f62d7e80f98400b2fca9d700d2afdd6f","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"],"weaknesses":["CWE-908"],"ingestedAt":"2026-10-29T20:08:04.920Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/53xxx/CVE-2024-53155.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-53155","state":"PUBLISHED","datePublished":"2024-12-24T11:28:54.241Z","dateUpdated":"2026-05-11T20:51:55.233Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-11-19T17:17:25.001Z"},"containers":{"cna":{"title":"ocfs2: fix uninitialized value in ocfs2_file_read_iter()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix uninitialized value in ocfs2_file_read_iter()\n\nSyzbot has reported the following KMSAN splat:\n\nBUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80\n ocfs2_file_read_iter+0x9a4/0xf80\n __io_read+0x8d4/0x20f0\n io_read+0x3e/0xf0\n io_issue_sqe+0x42b/0x22c0\n io_wq_submit_work+0xaf9/0xdc0\n io_worker_handle_work+0xd13/0x2110\n io_wq_worker+0x447/0x1410\n ret_from_fork+0x6f/0x90\n ret_from_fork_asm+0x1a/0x30\n\nUninit was created at:\n __alloc_pages_noprof+0x9a7/0xe00\n alloc_pages_mpol_noprof+0x299/0x990\n alloc_pages_noprof+0x1bf/0x1e0\n allocate_slab+0x33a/0x1250\n ___slab_alloc+0x12ef/0x35e0\n kmem_cache_alloc_bulk_noprof+0x486/0x1330\n __io_alloc_req_refill+0x84/0x560\n io_submit_sqes+0x172f/0x2f30\n __se_sys_io_uring_enter+0x406/0x41c0\n __x64_sys_io_uring_enter+0x11f/0x1a0\n x64_sys_call+0x2b54/0x3ba0\n do_syscall_64+0xcd/0x1e0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nSince an instance of 'struct kiocb' may be passed from the block layer\nwith 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()'\nand use it from where 'ocfs2_dio_end_io()' might take care, i.e. in\n'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"6c8f8d1e595dabd5389817f6d798cc8bd95c40ab","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"f4078ef38d3163e6be47403a619558b19c4bfccd","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"8c966150d5abff58c3c2bdb9a6e63fd773782905","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"83f8713a0ef1d55d6a287bcfadcaab8245ac5098","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"8e0de82ed18ba0e71f817adbd81317fd1032ca5a","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"366c933c2ab34dd6551acc03b4872726b7605143","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"dc78efe556fed162d48736ef24066f42e463e27c","versionType":"git"},{"version":"7cdfc3a1c3971c9125c317cb8c2525745851798e","status":"affected","lessThan":"adc77b19f62d7e80f98400b2fca9d700d2afdd6f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/aops.h","fs/ocfs2/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.22","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.22","versionType":"semver"},{"version":"4.19.325","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/aops.h","fs/ocfs2/file.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6c8f8d1e595dabd5389817f6d798cc8bd95c40ab"},{"url":"https://git.kernel.org/stable/c/f4078ef38d3163e6be47403a619558b19c4bfccd"},{"url":"https://git.kernel.org/stable/c/66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f"},{"url":"https://git.kernel.org/stable/c/8c966150d5abff58c3c2bdb9a6e63fd773782905"},{"url":"https://git.kernel.org/stable/c/83f8713a0ef1d55d6a287bcfadcaab8245ac5098"},{"url":"https://git.kernel.org/stable/c/8e0de82ed18ba0e71f817adbd81317fd1032ca5a"},{"url":"https://git.kernel.org/stable/c/366c933c2ab34dd6551acc03b4872726b7605143"},{"url":"https://git.kernel.org/stable/c/dc78efe556fed162d48736ef24066f42e463e27c"},{"url":"https://git.kernel.org/stable/c/adc77b19f62d7e80f98400b2fca9d700d2afdd6f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:51:55.233Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"4.19.325"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"5.4.287"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"6.11.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"6.12.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.22","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.1,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-53155","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:09:39.803725Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-908","lang":"en","type":"CWE","description":"CWE-908 Use of Uninitialized Resource"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T20:17:08.814Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:46:41.159Z"}}]}}}