CVEvulnerability
CVE-2026-53277
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-06-25
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-662, CWE-820
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.
Affected configurations
• linux linux kernel (>= 6.12 < 6.18.36)
• linux linux kernel (>= 6.19 < 7.0.13)
• linux linux kernel 7.1
Related
References
- https://git.kernel.org/stable/c/0648b375aa951cc15d9e90f9ac4de71e0b51fa45 git.kernel.org
- https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bc Patch
- https://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39 Patch
- https://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251 Patch
- https://access.redhat.com/errata/RHSA-2026:64775 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-53277 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492725 Issue Tracking, Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53277.json Third Party Advisory