Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Switch from mutex to spinlock for irqfds irqfd_wakeup() gets EPOLLHUP, when it is called by eventfd_release() by way of wake_up_poll(&ctx->wqh, EPOLLHUP), which gets called under spin_lock_irqsave(). We can't use a mutex here as it will lead to a deadlock. Fix it by switching over to a spin lock.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 before c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c; affected f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 before 49f2a5da6785b2dbde93e291cae037662440346e; affected f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 before 1c682593096a487fd9aebc079a307ff7a6d054a3 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.46 through 6.6.*; unaffected 6.10.5 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
- https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
- https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
ADP enrichment
No English description supplied.
No references supplied.