CVE-2023-53205Published

KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2023-53205

Published

In the Linux kernel, the following vulnerability has been resolved: KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler We do check for target CPU == -1, but this might change at the time we are going to use it. Hold the physical target CPU in a local variable to avoid out-of-bound accesses to the cpu arrays.

Source published: 15 Sep 2025 14:21:33 UTC
Source modified: 15 Oct 2026 21:41:27 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H