CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation
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.
INFO
Published Date :
June 25, 2026, 8:40 a.m.
Last Modified :
June 25, 2026, 8:40 a.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2026-53277
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Acquire SRCU lock before page table walks.
- Ensure page table walks are properly synchronized.
- Update the Linux kernel to the latest version.
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