CVE-2026-53277CWE-662CWE-820

CVE-2026-53277

High · published June 25, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
1.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00107 · 1.1th percentile
Weaknesses
CWE-662 · Improper Synchronization; CWE-820 · Missing Synchronization
Published
2026-06-25T13:16Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel≥ 6.12, < 6.18.366.18.36
linux/linux_kernel≥ 6.19, < 7.0.137.0.13
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (8)
EPSS history
Timeline
  • 25 JUN 08:40Z
    KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation
    cvelistv5