Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 6.6.18 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/10c02aad111df02088d1a81792a709f6a7eca6ccPatch
- https://git.kernel.org/stable/c/3ab1c40a1e915e350d9181a4603af393141970ccPatch
- https://git.kernel.org/stable/c/3d16cebf01127f459dcfeb79ed77bd68b124c228Patch
- https://git.kernel.org/stable/c/10c02aad111df02088d1a81792a709f6a7eca6ccPatch
- https://git.kernel.org/stable/c/3ab1c40a1e915e350d9181a4603af393141970ccPatch
- https://git.kernel.org/stable/c/3d16cebf01127f459dcfeb79ed77bd68b124c228Patch
FAQ
What is CVE-2024-26691?
CVE-2024-26691 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 rul...
How severe is CVE-2024-26691?
CVE-2024-26691 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-26691?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.