Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix possible deadlock in io_register_iowq_max_workers() The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6ee ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation. To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call. This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before b17397a0a5c56e111f61cb5b77d162664dc00de9; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before 97ed7ff58de66c544692b3c2b988f3f594348de0; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before fdacd09f2ddf7a00787291f08ee48c0421e5b709; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before 950ac86cff338ab56e2eaf611f4936ee34893b63; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before b571a367502c7ef94c688ef9c7f7d69a2ce3bcca; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e before 73254a297c2dd094abec7c9efee32455ae875bdf |
| Linux / Linux | affected 5.1; unaffected 0 before 5.1; unaffected 5.10.230 through 5.10.*; unaffected 5.15.173 through 5.15.*; unaffected 6.1.118 through 6.1.*; unaffected 6.6.62 through 6.6.*; unaffected 6.9.11 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b17397a0a5c56e111f61cb5b77d162664dc00de9
- https://git.kernel.org/stable/c/97ed7ff58de66c544692b3c2b988f3f594348de0
- https://git.kernel.org/stable/c/fdacd09f2ddf7a00787291f08ee48c0421e5b709
- https://git.kernel.org/stable/c/950ac86cff338ab56e2eaf611f4936ee34893b63
- https://git.kernel.org/stable/c/b571a367502c7ef94c688ef9c7f7d69a2ce3bcca
- https://git.kernel.org/stable/c/73254a297c2dd094abec7c9efee32455ae875bdf
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.