CVE-2024-53155ocfs2: fix uninitialized value in ocfs2_file_read_iter()
- 7.1HighCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix uninitialized value in ocfs2_file_read_iter() Syzbot has reported the following KMSAN splat: BUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80 ocfs2_file_read_iter+0x9a4/0xf80 __io_read+0x8d4/0x20f0 io_read+0x3e/0xf0 io_issue_sqe+0x42b/0x22c0 io_wq_submit_work+0xaf9/0xdc0 io_worker_handle_work+0xd13/0x2110 io_wq_worker+0x447/0x1410 ret_from_fork+0x6f/0x90 ret_from_fork_asm+0x1a/0x30 Uninit was created at: __alloc_pages_noprof+0x9a7/0xe00 alloc_pages_mpol_noprof+0x299/0x990 alloc_pages_noprof+0x1bf/0x1e0 allocate_slab+0x33a/0x1250 ___slab_alloc+0x12ef/0x35e0 kmem_cache_alloc_bulk_noprof+0x486/0x1330 __io_alloc_req_refill+0x84/0x560 io_submit_sqes+0x172f/0x2f30 __se_sys_io_uring_enter+0x406/0x41c0 __x64_sys_io_uring_enter+0x11f/0x1a0 x64_sys_call+0x2b54/0x3ba0 do_syscall_64+0xcd/0x1e0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Since an instance of 'struct kiocb' may be passed from the block layer with 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()' and use it from where 'ocfs2_dio_end_io()' might take care, i.e. in 'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'.
Timeline
ID reserved
By Linux
- 35 days later
· 35 days later
Published
- 17 months later
· 17 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 6c8f8d1e595dabd5389817f6d798cc8bd95c40ab
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < f4078ef38d3163e6be47403a619558b19c4bfccd
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 8c966150d5abff58c3c2bdb9a6e63fd773782905
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 83f8713a0ef1d55d6a287bcfadcaab8245ac5098
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 8e0de82ed18ba0e71f817adbd81317fd1032ca5a
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < 366c933c2ab34dd6551acc03b4872726b7605143
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < dc78efe556fed162d48736ef24066f42e463e27c
- affected 7cdfc3a1c3971c9125c317cb8c2525745851798e – < adc77b19f62d7e80f98400b2fca9d700d2afdd6f
- affected 2.6.22
- unaffected < 2.6.22
- unaffected 4.19.325 – ≤ 4.19.*
- unaffected 5.4.287 – ≤ 5.4.*
- unaffected 5.10.231 – ≤ 5.10.*
- unaffected 5.15.174 – ≤ 5.15.*
- unaffected 6.1.120 – ≤ 6.1.*
- unaffected 6.6.64 – ≤ 6.6.*
- unaffected 6.11.11 – ≤ 6.11.*
- unaffected 6.12.2 – ≤ 6.12.*
- unaffected 6.13 – ≤ *
References
References11
- https://git.kernel.org/stable/c/6c8f8d1e595dabd5389817f6d798cc8bd95c40ab (opens in a new tab)
- https://git.kernel.org/stable/c/f4078ef38d3163e6be47403a619558b19c4bfccd (opens in a new tab)
- https://git.kernel.org/stable/c/66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f (opens in a new tab)
- https://git.kernel.org/stable/c/8c966150d5abff58c3c2bdb9a6e63fd773782905 (opens in a new tab)
- https://git.kernel.org/stable/c/83f8713a0ef1d55d6a287bcfadcaab8245ac5098 (opens in a new tab)
- https://git.kernel.org/stable/c/8e0de82ed18ba0e71f817adbd81317fd1032ca5a (opens in a new tab)
- https://git.kernel.org/stable/c/366c933c2ab34dd6551acc03b4872726b7605143 (opens in a new tab)
- https://git.kernel.org/stable/c/dc78efe556fed162d48736ef24066f42e463e27c (opens in a new tab)
- https://git.kernel.org/stable/c/adc77b19f62d7e80f98400b2fca9d700d2afdd6f (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-51827 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-53155)Record last updated .