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.
References (8)
Core 8
Core References
Scores
CVSS v3
4.7
EPSS
0.0021
EPSS Percentile
10.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (21)
linux/Kernel
5.11.0 - 5.15.169linux
linux/Kernel
5.16.0 - 6.1.114linux
linux/Kernel
5.6.0 - 5.10.228linux
linux/Kernel
6.2.0 - 6.6.58linux
linux/Kernel
6.7.0 - 6.11.5linux
Linux/Linux
< 5.6
Linux/Linux
5.10.228 - 5.10.*
Linux/Linux
5.15.169 - 5.15.*
Linux/Linux
5.6
Linux/Linux
6.1.114 - 6.1.*
... and 11 more
Published
Nov 08, 2024
Tracked Since
Feb 18, 2026