CVE-2024-26691
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix circular locking dependency The rule inside kvm enforces that the vcpu->mutex is taken *inside* kvm->lock. The rule is violated by the pkvm_create_hyp_vm() which acquires the kvm->lock while already holding the vcpu->mutex lock from kvm_vcpu_ioctl(). Avoid the circular locking dependency altogether by protecting the hyp vm handle with the config_lock, much like we already do for other forms of VM-scoped data.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 3, 2024
First seenApr 3, 2024
How to fix
Update
- linux linux_kernel6.6.18, 6.7.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 6.6.18, 6.7 ≤ v < 6.7.6, 6.8 | 6.6.18, 6.7.6 |
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