CVE-2024-44957

MEDIUM EPSS 6.0%
Published Sep 4, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 4, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel* <6.6.46
linuxlinux_kernel*≥6.7  –  <6.10.5

References 3

  • git.kernel.org https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1c682593096a487fd9aebc079a307ff7a6d054a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/49f2a5da6785b2dbde93e291cae037662440346e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c2775ae4d9227729f8ca9ee2a068f62a00d5ea9c
    Patch