Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before a2493904e95ce94bbec819d8f7f03b99976eb25c; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before f4ce3b5d26ce149e77e6b8e8f2058aa80e5b034e; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before c2eadeafce2d385b3f6d26a7f31fee5aba2bbbb0; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before eac2ca2d682f94f46b1973bdf5e77d85d77b8e53 |
| Linux / Linux | affected 5.1; unaffected 0 before 5.1; unaffected 6.1.113 through 6.1.*; unaffected 6.6.57 through 6.6.*; unaffected 6.11.4 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a2493904e95ce94bbec819d8f7f03b99976eb25c
- https://git.kernel.org/stable/c/f4ce3b5d26ce149e77e6b8e8f2058aa80e5b034e
- https://git.kernel.org/stable/c/c2eadeafce2d385b3f6d26a7f31fee5aba2bbbb0
- https://git.kernel.org/stable/c/eac2ca2d682f94f46b1973bdf5e77d85d77b8e53
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.