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nvd416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2024-26691
HistoryApr 03, 2024 - 3:15 p.m.

CVE-2024-26691

2024-04-0315:15:52
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
4
linux
kvm
arm64
circular locking
dependency
vulnerability

AI Score

6.5

Confidence

Low

EPSS

0

Percentile

15.5%

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.

AI Score

6.5

Confidence

Low

EPSS

0

Percentile

15.5%