CVE-2023-53205

Published: Sep 15, 2025

Modified: May 11, 2026

PUBLISHED

Description

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.

Vendor	Product	Versions
Linux	Linux	affected `87e28a15c42cc592009c32a8c20e5789059027c2 - < a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5` affected `87e28a15c42cc592009c32a8c20e5789059027c2 - < 86bfb18bad60fc468e5f112cbbd918462a8dd435` affected `87e28a15c42cc592009c32a8c20e5789059027c2 - < dc7e0192c470a53d847c79a2796f9ac429477a26` affected `87e28a15c42cc592009c32a8c20e5789059027c2 - < 0bc380beb78aa352eadbc21d934dd9606fcee808`
Linux	Linux	affected `5.13` unaffected `0 - < 5.13` unaffected `5.15.121 - <= 5.15.` unaffected `6.1.39 - <= 6.1.` unaffected `6.4.4 - <= 6.4.*` +1 more versions

References

https://git.kernel.org/stable/c/a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5

https://git.kernel.org/stable/c/86bfb18bad60fc468e5f112cbbd918462a8dd435

https://git.kernel.org/stable/c/dc7e0192c470a53d847c79a2796f9ac429477a26

https://git.kernel.org/stable/c/0bc380beb78aa352eadbc21d934dd9606fcee808

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CVE-2023-53205

Description

Affected Products

References