UBUNTU-CVE-2024-50060
In the Linux kernel, the following vulnerability has been resolved: io_uring: check if we need to reschedule during overflow flush In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while. Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
84 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
12 explicit affected versions
14 explicit affected versions
40 explicit affected versions
12 explicit affected versions
71 explicit affected versions
1 explicit affected versions
13 explicit affected versions
12 explicit affected versions
10 explicit affected versions
86 explicit affected versions
10 explicit affected versions
1 explicit affected versions
85 explicit affected versions
2 explicit affected versions
51 explicit affected versions
1 explicit affected versions
63 explicit affected versions
10 explicit affected versions
23 explicit affected versions
75 explicit affected versions
75 explicit affected versions
13 explicit affected versions
43 explicit affected versions
1 explicit affected versions
13 explicit affected versions
26 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
94 explicit affected versions
19 explicit affected versions
79 explicit affected versions
79 explicit affected versions
82 explicit affected versions
73 explicit affected versions
10 explicit affected versions
24 explicit affected versions
11 explicit affected versions
17 explicit affected versions
86 explicit affected versions
7 explicit affected versions
1 explicit affected versions
81 explicit affected versions
14 explicit affected versions
13 explicit affected versions
16 explicit affected versions
35 explicit affected versions
21 explicit affected versions
16 explicit affected versions
46 explicit affected versions
44 explicit affected versions
18 explicit affected versions
38 explicit affected versions
10 explicit affected versions
64 explicit affected versions
19 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
20 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
12 explicit affected versions
14 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
11 explicit affected versions
6 explicit affected versions
10 explicit affected versions
37 explicit affected versions
61 explicit affected versions
26 explicit affected versions
13 explicit affected versions
33 explicit affected versions
29 explicit affected versions
13 explicit affected versions
91 explicit affected versions
13 explicit affected versions
14 explicit affected versions
49 explicit affected versions
33 explicit affected versions
23 explicit affected versions
55 explicit affected versions
1 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
87 explicit affected versions
10 explicit affected versions
26 explicit affected versions
18 explicit affected versions
3 explicit affected versions
13 explicit affected versions
19 explicit affected versions
16 explicit affected versions
85 explicit affected versions
22 explicit affected versions
7 explicit affected versions
20 explicit affected versions
12 explicit affected versions
68 explicit affected versions
74 explicit affected versions
27 explicit affected versions
60 explicit affected versions
15 explicit affected versions
8 explicit affected versions
51 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
18 explicit affected versions
13 explicit affected versions
7 explicit affected versions
2 explicit affected versions
10 explicit affected versions
12 explicit affected versions
33 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
45 explicit affected versions
37 explicit affected versions
23 explicit affected versions
14 explicit affected versions
1 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
13 explicit affected versions
7 explicit affected versions
87 explicit affected versions
7 explicit affected versions
4 explicit affected versions
76 explicit affected versions
1 explicit affected versions
10 explicit affected versions
8 explicit affected versions
17 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
14 explicit affected versions
74 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: io_uring: check if we need to reschedule during overflow flush In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while. Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/eac2ca2d682f94f46b1973bdf5e77d85d77b8e53
- https://git.kernel.org/stable/c/a2493904e95ce94bbec819d8f7f03b99976eb25c
- https://git.kernel.org/stable/c/c2eadeafce2d385b3f6d26a7f31fee5aba2bbbb0
- https://git.kernel.org/stable/c/eac2ca2d682f94f46b1973bdf5e77d85d77b8e53
- https://git.kernel.org/stable/c/f4ce3b5d26ce149e77e6b8e8f2058aa80e5b034e
- https://ubuntu.com/security/CVE-2024-50060
- 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-7383-1
- https://ubuntu.com/security/notices/USN-7383-2
- https://ubuntu.com/security/notices/USN-7384-1
- https://ubuntu.com/security/notices/USN-7384-2
- https://ubuntu.com/security/notices/USN-7385-1
- https://ubuntu.com/security/notices/USN-7386-1
- https://ubuntu.com/security/notices/USN-7403-1
- https://ubuntu.com/security/notices/USN-7451-1
- 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-8279-1
- https://ubuntu.com/security/notices/USN-8279-2
- https://ubuntu.com/security/notices/USN-8279-3
- https://ubuntu.com/security/notices/USN-8291-1
- https://ubuntu.com/security/notices/USN-8291-2
- https://ubuntu.com/security/notices/USN-8291-3
- https://ubuntu.com/security/notices/USN-8426-1
- https://ubuntu.com/security/notices/USN-8426-2
- https://ubuntu.com/security/notices/USN-8439-1
- https://ubuntu.com/security/notices/USN-8528-1
- https://www.cve.org/CVERecord?id=CVE-2024-50060