GoogleOSV:UBUNTU-CVE-2024-44957UBUNTU-CVE-2024-44957
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
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.
References
git.kernel.org/linus/1c682593096a487fd9aebc079a307ff7a6d054a3
git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
ubuntu.com/security/CVE-2024-44957
www.cve.org/CVERecord?id=CVE-2024-44957
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low