CVE-2024-50192 (GCVE-0-2024-50192)
Vulnerability from cvelistv5
Published
2024-11-08 05:54
Modified
2026-05-11 20:47
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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
Impacted products
Vendor Product Version
Linux Linux Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
Version: 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3
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