CVE-2024-50192 — Race Condition in Linux
Severity
4.7MEDIUMNVD
OSV8.8OSV7.8OSV5.5
EPSS
0.0%
top 98.41%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 8
Latest updateMay 26
Description
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 invol…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6