high8.8
CVE-2026-53277
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 wal…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.12 before 6.18.36 from 6.19 before 7.0.13 Version 7.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/0648b375aa951cc15d9e90f9ac4de71e0b51fa45
- https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bc
- https://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39
- https://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251
- https://access.redhat.com/errata/RHSA-2026:64775
- https://access.redhat.com/security/cve/CVE-2026-53277
- https://bugzilla.redhat.com/show_bug.cgi?id=2492725
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53277.json