KVM: arm64: Sign-extend VA for range-based TLBI invalidation
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 6.18.51, 7.2.5
- 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
The Linux kernel's ARM64 KVM hypervisor code, which handles virtual machine memory translation cache invalidation, is affected. The missing sign extension of virtual addresses during range-based TLB invalidation could cause incorrect address ranges to be invalidated, potentially leading to improper memory handling for virtual machines.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decode_range_tlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not overflow PA bits when this is used for S2 invalidation.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 85bba00425ae0b4b30938ebfdde6d986e5423aff · fixed in 72bce82c4171bf330919ff1b64dc0a36c254ec7d; From 85bba00425ae0b4b30938ebfdde6d986e5423aff · fixed in 3feb83918e30f0472e058224b926ebfe8a064fac; From 85bba00425ae0b4b30938ebfdde6d986e5423aff · fixed in 2393470085649f0b973ecceb26fe8fc71edde0c1
- Linux Linux
6.16
- KernelLinux
From 6.16.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5