CVE-2024-50192
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50192
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50192.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-50192
- Downstream
- Related
- Published
- 2024-11-08T06:15:16Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
-
- https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff
- https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a
- https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe
- https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb
- https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196
- https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6