UBUNTU-CVE-2024-53155
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()'.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
43 explicit affected versions
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6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
69 explicit affected versions
21 explicit affected versions
54 explicit affected versions
72 explicit affected versions
62 explicit affected versions
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10 explicit affected versions
12 explicit affected versions
19 explicit affected versions
61 explicit affected versions
191 explicit affected versions
7 explicit affected versions
60 explicit affected versions
16 explicit affected versions
100 explicit affected versions
13 explicit affected versions
72 explicit affected versions
18 explicit affected versions
35 explicit affected versions
21 explicit affected versions
19 explicit affected versions
18 explicit affected versions
20 explicit affected versions
103 explicit affected versions
64 explicit affected versions
21 explicit affected versions
102 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
108 explicit affected versions
26 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
57 explicit affected versions
22 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
52 explicit affected versions
12 explicit affected versions
14 explicit affected versions
7 explicit affected versions
2 explicit affected versions
89 explicit affected versions
12 explicit affected versions
105 explicit affected versions
113 explicit affected versions
12 explicit affected versions
16 explicit affected versions
100 explicit affected versions
107 explicit affected versions
15 explicit affected versions
13 explicit affected versions
8 explicit affected versions
10 explicit affected versions
175 explicit affected versions
37 explicit affected versions
1 explicit affected versions
13 explicit affected versions
14 explicit affected versions
10 explicit affected versions
1 explicit affected versions
37 explicit affected versions
26 explicit affected versions
13 explicit affected versions
12 explicit affected versions
1 explicit affected versions
29 explicit affected versions
93 explicit affected versions
13 explicit affected versions
66 explicit affected versions
15 explicit affected versions
16 explicit affected versions
1 explicit affected versions
87 explicit affected versions
61 explicit affected versions
105 explicit affected versions
24 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
1 explicit affected versions
101 explicit affected versions
11 explicit affected versions
12 explicit affected versions
124 explicit affected versions
7 explicit affected versions
12 explicit affected versions
103 explicit affected versions
2 explicit affected versions
52 explicit affected versions
46 explicit affected versions
117 explicit affected versions
62 explicit affected versions
152 explicit affected versions
138 explicit affected versions
10 explicit affected versions
26 explicit affected versions
20 explicit affected versions
38 explicit affected versions
1 explicit affected versions
11 explicit affected versions
23 explicit affected versions
13 explicit affected versions
21 explicit affected versions
124 explicit affected versions
63 explicit affected versions
16 explicit affected versions
63 explicit affected versions
24 explicit affected versions
53 explicit affected versions
3 explicit affected versions
78 explicit affected versions
1 explicit affected versions
1 explicit affected versions
2 explicit affected versions
70 explicit affected versions
51 explicit affected versions
77 explicit affected versions
7 explicit affected versions
20 explicit affected versions
12 explicit affected versions
49 explicit affected versions
27 explicit affected versions
36 explicit affected versions
1 explicit affected versions
1 explicit affected versions
82 explicit affected versions
17 explicit affected versions
8 explicit affected versions
26 explicit affected versions
5 explicit affected versions
8 explicit affected versions
1 explicit affected versions
10 explicit affected versions
20 explicit affected versions
13 explicit affected versions
92 explicit affected versions
13 explicit affected versions
56 explicit affected versions
7 explicit affected versions
2 explicit affected versions
79 explicit affected versions
54 explicit affected versions
10 explicit affected versions
12 explicit affected versions
15 explicit affected versions
91 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
25 explicit affected versions
14 explicit affected versions
38 explicit affected versions
53 explicit affected versions
9 explicit affected versions
51 explicit affected versions
11 explicit affected versions
15 explicit affected versions
7 explicit affected versions
62 explicit affected versions
7 explicit affected versions
33 explicit affected versions
85 explicit affected versions
64 explicit affected versions
128 explicit affected versions
107 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
60 explicit affected versions
100 explicit affected versions
13 explicit affected versions
43 explicit affected versions
58 explicit affected versions
131 explicit affected versions
152 explicit affected versions
10 explicit affected versions
8 explicit affected versions
19 explicit affected versions
14 explicit affected versions
92 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
54 explicit affected versions
14 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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()'.
05 / REFERENCES
Further evidence
- https://git.kernel.org/stable/c/366c933c2ab34dd6551acc03b4872726b7605143
- https://git.kernel.org/stable/c/66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f
- https://git.kernel.org/stable/c/6c8f8d1e595dabd5389817f6d798cc8bd95c40ab
- https://git.kernel.org/stable/c/83f8713a0ef1d55d6a287bcfadcaab8245ac5098
- https://git.kernel.org/stable/c/8c966150d5abff58c3c2bdb9a6e63fd773782905
- https://git.kernel.org/stable/c/8e0de82ed18ba0e71f817adbd81317fd1032ca5a
- https://git.kernel.org/stable/c/adc77b19f62d7e80f98400b2fca9d700d2afdd6f
- https://git.kernel.org/stable/c/dc78efe556fed162d48736ef24066f42e463e27c
- https://git.kernel.org/stable/c/f4078ef38d3163e6be47403a619558b19c4bfccd
- https://ubuntu.com/security/CVE-2024-53155
- https://ubuntu.com/security/notices/USN-7276-1
- https://ubuntu.com/security/notices/USN-7277-1
- https://ubuntu.com/security/notices/USN-7310-1
- https://ubuntu.com/security/notices/USN-7387-1
- https://ubuntu.com/security/notices/USN-7387-2
- https://ubuntu.com/security/notices/USN-7387-3
- https://ubuntu.com/security/notices/USN-7388-1
- https://ubuntu.com/security/notices/USN-7389-1
- https://ubuntu.com/security/notices/USN-7390-1
- https://ubuntu.com/security/notices/USN-7391-1
- https://ubuntu.com/security/notices/USN-7392-1
- https://ubuntu.com/security/notices/USN-7392-2
- https://ubuntu.com/security/notices/USN-7392-3
- https://ubuntu.com/security/notices/USN-7392-4
- https://ubuntu.com/security/notices/USN-7393-1
- https://ubuntu.com/security/notices/USN-7401-1
- https://ubuntu.com/security/notices/USN-7407-1
- https://ubuntu.com/security/notices/USN-7413-1
- https://ubuntu.com/security/notices/USN-7421-1
- https://ubuntu.com/security/notices/USN-7449-1
- https://ubuntu.com/security/notices/USN-7449-2
- https://ubuntu.com/security/notices/USN-7450-1
- https://ubuntu.com/security/notices/USN-7451-1
- https://ubuntu.com/security/notices/USN-7452-1
- https://ubuntu.com/security/notices/USN-7453-1
- https://ubuntu.com/security/notices/USN-7458-1
- https://ubuntu.com/security/notices/USN-7459-1
- https://ubuntu.com/security/notices/USN-7459-2
- https://ubuntu.com/security/notices/USN-7463-1
- https://ubuntu.com/security/notices/USN-7468-1
- https://ubuntu.com/security/notices/USN-7523-1
- https://ubuntu.com/security/notices/USN-7524-1
- https://ubuntu.com/security/notices/USN-7539-1
- https://ubuntu.com/security/notices/USN-7540-1
- https://ubuntu.com/security/notices/USN-7553-1
- https://ubuntu.com/security/notices/USN-7553-2
- https://ubuntu.com/security/notices/USN-7553-3
- https://ubuntu.com/security/notices/USN-7553-4
- https://ubuntu.com/security/notices/USN-7553-5
- https://ubuntu.com/security/notices/USN-7553-6
- https://ubuntu.com/security/notices/USN-7554-1
- https://ubuntu.com/security/notices/USN-7554-2
- https://ubuntu.com/security/notices/USN-7554-3
- https://www.cve.org/CVERecord?id=CVE-2024-53155