جزئیات آسیب‌پذیری

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort when kvm_translate_vncr() returns -EFAULT. This is not always the case as it's possible to encounter 'late' failures on the output of S1 translation, e.g. a GFN outside of the memslots. Fix it by preparing an external abort before returning from kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection path while at it.

• https://git.kernel.org/stable/c/4ead4def04659739c399bfcb063f8a906194c79f
• https://git.kernel.org/stable/c/53804b6839573c9c6fff5f4cf075d6746267345e
• https://git.kernel.org/stable/c/9f3e83345a56280efffe235c65593c7e544c0fcc