CVE-2024-50192 The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules-internal (opens in a new tab)
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-KERNELRTMODULESINTERNAL-8406057
- published26 Nov 2024
- disclosed8 Nov 2024
Introduced: 8 Nov 2024
CVE-2024-50192 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-internal package and not the kernel-rt-modules-internal package as distributed by RHEL.
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://access.redhat.com/security/cve/CVE-2024-50192
- 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