Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: pipe: wakeup wr_wait after setting max_usage Commit c73be61cede5 ("pipe: Add general notification queue support") a regression was introduced that would lock up resized pipes under certain conditions. See the reproducer in [1]. The commit resizing the pipe ring size was moved to a different function, doing that moved the wakeup for pipe->wr_wait before actually raising pipe->max_usage. If a pipe was full before the resize occured it would result in the wakeup never actually triggering pipe_write. Set @max_usage and @nr_accounted before waking writers if this isn't a watch queue. [Christian Brauner <brauner@kernel.org>: rewrite to account for watch queues]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c73be61cede5882f9605a852414db559c0ebedfd before 162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8; affected c73be61cede5882f9605a852414db559c0ebedfd before 3efbd114b91525bb095b8ae046382197d92126b9; affected c73be61cede5882f9605a852414db559c0ebedfd before b87a1229d8668fbc78ebd9ca0fc797a76001c60f; affected c73be61cede5882f9605a852414db559c0ebedfd before 68e51bdb1194f11d3452525b99c98aff6f837b24; affected c73be61cede5882f9605a852414db559c0ebedfd before 6fb70694f8d1ac34e45246b0ac988f025e1e5b55; affected c73be61cede5882f9605a852414db559c0ebedfd before e95aada4cb93d42e25c30a0ef9eb2923d9711d4a |
| Linux / Linux | affected 5.8; unaffected 0 before 5.8; unaffected 5.10.210 through 5.10.*; unaffected 5.15.149 through 5.15.*; unaffected 6.1.76 through 6.1.*; unaffected 6.6.15 through 6.6.*; unaffected 6.7.3 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8
- https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9
- https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f
- https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24
- https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55
- https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8
- https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9
- https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f
- https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24
- https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55
- https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html