Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. If the MSR holds a different value per logical CPU, the WRMSR could corrupt the host's value if KVM is preempted between the RDMSR and WRMSR, and then rescheduled on a different CPU. Opportunistically land the helper in common x86, SVM will use the helper in a future commit.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4be5341026246870818e28b53202b001426a5aec before 31f29749ee970c251b3a7e5b914108425940d089; affected 4be5341026246870818e28b53202b001426a5aec before 5adcdeb57007ccf8ab7ac20bf787ffb6fafb1a94; affected 4be5341026246870818e28b53202b001426a5aec before e3ea1895df719c4ef87862501bb10d95f4177bed; affected 4be5341026246870818e28b53202b001426a5aec before 5104d7ffcf24749939bea7fdb5378d186473f890 |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.38 through 5.10.*; unaffected 5.11.22 through 5.11.*; unaffected 5.12.5 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/31f29749ee970c251b3a7e5b914108425940d089
- https://git.kernel.org/stable/c/5adcdeb57007ccf8ab7ac20bf787ffb6fafb1a94
- https://git.kernel.org/stable/c/e3ea1895df719c4ef87862501bb10d95f4177bed
- https://git.kernel.org/stable/c/5104d7ffcf24749939bea7fdb5378d186473f890
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.