Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.6.46 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3Patch
- https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346ePatch
- https://git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9cPatch
FAQ
What is CVE-2024-44957?
CVE-2024-44957 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2024-44957?
CVE-2024-44957 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-44957?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.