CVE-2025-39823
KVM: x86: use array_index_nospec with indices that come from guest
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: use array_index_nospec with indices that come from guest min and dest_id are guest-controlled indices. Using array_index_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.19
References 8
git.kernel.org
- stable/c/72777fc31aa7ab2ce00f44bfa3929c6eabbeaf48
- stable/c/31a0ad2f60cb4816e06218b63e695eb72ce74974
- stable/c/d51e381beed5e2f50f85f49f6c90e023754efa12
- stable/c/33e974c2d5a82b2f9d9ba0ad9cbaabc1c8e3985f
- stable/c/f49161646e03d107ce81a99c6ca5da682fe5fb69
- stable/c/67a05679621b7f721bdba37a5d18665d3aceb695
- stable/c/f57a4bd8d6cb5af05b8ac1be9098e249034639fb
- stable/c/c87bd4dd43a624109c3cc42d843138378a7f4548