Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation walk_s1() and kvm_walk_nested_s2() expect to be called while holding kvm->srcu to guard against memslot changes. While this is generally the case, __kvm_at_s12() and __kvm_find_s1_desc_level() call into the respective walkers without taking kvm->srcu. Fix by acquiring kvm->srcu prior to the table walk in both instances.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.12, < 6.18.36 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bcPatch
- https://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39Patch
- https://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251Patch
- https://access.redhat.com/security/cve/CVE-2026-53277Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492725Issue TrackingThird Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53277.jsonThird Party Advisory
FAQ
What is CVE-2026-53277?
CVE-2026-53277 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation walk_s1() and kvm_walk_nested_s2() expect ...
How severe is CVE-2026-53277?
CVE-2026-53277 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53277?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.