Tracker / CVE-2024-50192
CVE-2024-50192
Medium 4.7
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.169 |
| linux | linux_kernel · 5.16 → 6.1.114 |
| linux | linux_kernel · 5.6 → 5.10.228 |
| linux | linux_kernel · 6.2 → 6.6.58 |
| linux | linux_kernel · 6.7 → 6.11.5 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.