CVE-2024-50192

MEDIUM EPSS 10.6%
Published Nov 8, 20241y ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Nov 8, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE Kunkun Jiang reported that there is a small window of opportunity for userspace to force a change of affinity for a VPE while the VPE has already been unmapped, but the corresponding doorbell interrupt still visible in /proc/irq/. Plug the race by checking the value of vmapp_count, which tracks whether the VPE is mapped ot not, and returning an error in this case. This involves making vmapp_count common to both GICv4.1 and its v4.0 ancestor.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
10.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.10.228
linuxlinux_kernel*≥5.11  –  <5.15.169
linuxlinux_kernel*≥5.16  –  <6.1.114
linuxlinux_kernel*≥6.2  –  <6.6.58
linuxlinux_kernel*≥6.7  –  <6.11.5
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6
    Patch