CVE-2024-50192
irqchip/gic-v4: Don't allow a VMOVP on a dying VPE
CVSS Score
4.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 8, 2024 |
| Last Updated | May 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new medium vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < b7d7b7fc876f836f40bf48a87e07ea18756ba196 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < 755b9532c885b8761fb135fedcd705e21e61cccb 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < 64b12b061c5488e2d69e67c4eaae5da64fd30bfe 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < 01282ab5182f85e42234df2ff42f0ce790f465ff 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < d960505a869e66184fff97fb334980a5b797c7c6 64edfaa9a2342a3ce34f8cb982c2c2df84db4de3 < 1442ee0011983f0c5c4b92380e6853afb513841a
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196 git.kernel.org: https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb git.kernel.org: https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe git.kernel.org: https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff git.kernel.org: https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6 git.kernel.org: https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html