Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: nSVM: fix potential NULL derefernce on nested migration Turns out that due to review feedback and/or rebases I accidentally moved the call to nested_svm_load_cr3 to be too early, before the NPT is enabled, which is very wrong to do. KVM can't even access guest memory at that point as nested NPT is needed for that, and of course it won't initialize the walk_mmu, which is main issue the patch was addressing. Fix this for real.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 232f75d3b4b5456de6f0b671aa86345d62de1473 before 74b426bea4f7e3b081add2b88d4fba16d3af7ab6; affected 232f75d3b4b5456de6f0b671aa86345d62de1473 before 352193edda48e08e8824a7ece09aec830a603cfe; affected 232f75d3b4b5456de6f0b671aa86345d62de1473 before e1779c2714c3023e4629825762bcbc43a3b943df |
| Linux / Linux | affected 5.13; unaffected 0 before 5.13; unaffected 5.15.25 through 5.15.*; unaffected 5.16.11 through 5.16.*; unaffected 5.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/74b426bea4f7e3b081add2b88d4fba16d3af7ab6
- https://git.kernel.org/stable/c/352193edda48e08e8824a7ece09aec830a603cfe
- https://git.kernel.org/stable/c/e1779c2714c3023e4629825762bcbc43a3b943df
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.