CVE-2024-26691

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6211753fdfd05af9e08f54c8d0ba3ee516034878 < 3d16cebf01127f459dcfeb79ed77bd68b124c228affected
LinuxLinux6211753fdfd05af9e08f54c8d0ba3ee516034878 < 3ab1c40a1e915e350d9181a4603af393141970ccaffected
LinuxLinux6211753fdfd05af9e08f54c8d0ba3ee516034878 < 10c02aad111df02088d1a81792a709f6a7eca6ccaffected
LinuxLinux3.11affected
LinuxLinux0 < 3.11unaffected
LinuxLinux6.6.18 <= 6.6.*unaffected
LinuxLinux6.7.6 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References