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
Configurations
Configuration 1 (hide)
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History
No history.
Information
Published : 2024-11-08 06:15
Updated : 2024-11-29 19:00
NVD link : CVE-2024-50192
Mitre link : CVE-2024-50192
CVE.ORG link : CVE-2024-50192
JSON object : View
Products Affected
linux
- linux_kernel
CWE