CVE-2026-64286
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU flush_hyp_vcpu() copies the host vCPU context into the hyp's private vCPU on every run. ctxt_to_vcpu() expects a guest context to have a NULL __hyp_running_vcpu, which is only ever set on the host context, so that it resolves the vCPU via container_of(). While this is generally the case, flush_hyp_vcpu() copies the context verbatim and does not enforce this, so a value provided by the host is dereferenced at EL2 (host -> EL2). Fix by clearing __hyp_running_vcpu after the copy.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| be66e67f175096f283c9d5614c4991fc9e7ed975 | affected | git | 477145860dba4c30f0b4e36f02f4c5291c1c888b | Unavailable | None listed |
| be66e67f175096f283c9d5614c4991fc9e7ed975 | affected | git | dfaef40d8a1533940fc1af788d70fce07362b4ce | Unavailable | None listed |
| be66e67f175096f283c9d5614c4991fc9e7ed975 | affected | git | 6bea2f8becdb20d34378493c3b77a9b9cf8c6cfa | Unavailable | None listed |
| be66e67f175096f283c9d5614c4991fc9e7ed975 | affected | git | d4f4d61715d1061ba83b88196a3605662be30750 | Unavailable | None listed |
| be66e67f175096f283c9d5614c4991fc9e7ed975 | affected | git | e8042f6e1d7befb2fb6b10a75918642bcd0acf9a | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.39 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.4 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |