Improper Locking Affecting kernel-cross-headers package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-7911105
- published 5 Sep 2024
- disclosed 4 Sep 2024
Introduced: 4 Sep 2024
CVE-2024-44957 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8 kernel-cross-headers.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.