CVE-2026-53277

Katalog CVE

CVSS 8.8 · High EPSS 0,11%

Kerentanan Improper Synchronization pada linux kernel. Skor CVSS 3.1 8.8 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

25 Juni 2026

Terakhir diubah

9 September 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-662: Improper Synchronization
CWE-820: Missing Synchronization

EPSS (30 hari)

0,11% peluang dieksploitasi; lebih tinggi dari 1,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• 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/security/cve/CVE-2026-53277 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2492725 issue tracking · advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53277.json advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:64775