CVE-2024-53155: linux Use of Uninitialized Resource
Vulnerability summary
CVE-2024-53155 is a high (CVSS 7.1) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 52 · Related 52Timeline
- 24-12-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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()'.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu134 products
- linuxAll versions (No fix recorded) | < 4.4.0-269.303 | < 4.15.0-238.250 | < 5.4.0-211.231 | < 5.15.0-135.146 | < 6.8.0-58.60
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1144.150 | < 4.4.0-1182.197 | < 4.15.0-1181.194 | < 5.4.0-1142.152 | < 5.15.0-1080.87 | < 6.8.0-1027.29
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 6c8f8d1e595dabd5389817f6d798cc8bd95c40ab | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < f4078ef38d3163e6be47403a619558b19c4bfccd | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 8c966150d5abff58c3c2bdb9a6e63fd773782905 | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 83f8713a0ef1d55d6a287bcfadcaab8245ac5098 | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 8e0de82ed18ba0e71f817adbd81317fd1032ca5a | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < 366c933c2ab34dd6551acc03b4872726b7605143 | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < dc78efe556fed162d48736ef24066f42e463e27c | ≥ 7cdfc3a1c3971c9125c317cb8c2525745851798e, < adc77b19f62d7e80f98400b2fca9d700d2afdd6f | 2.6.22
- linux_kernel≥ 2.6.22, < 4.19.325 | ≥ 4.20, < 5.4.287 | ≥ 5.5, < 5.10.231 | ≥ 5.11, < 5.15.174 | ≥ 5.16, < 6.1.120 | ≥ 6.2, < 6.6.64 | ≥ 6.7, < 6.11.11 | ≥ 6.12, < 6.12.2
Debian1 product
- linux< 6.1.123-1 | < 6.12.3-1
3 vendors · 137 products
