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CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation
High8.8EPSS 0.11%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| redhat-SADPADP (enrichment) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 99% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
- affected be04cebf3e78874627dc1042991d5d504464a5cc – < 0648b375aa951cc15d9e90f9ac4de71e0b51fa45
- affected be04cebf3e78874627dc1042991d5d504464a5cc – < 97706097f9b851cfe55c3b00b083dfc2bcf542bc
- affected be04cebf3e78874627dc1042991d5d504464a5cc – < ec42b4ed1b072ea2d03f086061aa67bad6d8de39
- affected be04cebf3e78874627dc1042991d5d504464a5cc – < f2ca45b50d4216c9cc7ffabf50d9ad1932209251
- affected 6.12
- unaffected < 6.12
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References (8)
- https://git.kernel.org/stable/c/0648b375aa951cc15d9e90f9ac4de71e0b51fa45 (opens in a new tab)
- https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bc (opens in a new tab)
- https://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39 (opens in a new tab)
- https://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251 (opens in a new tab)
- https://access.redhat.com/security/cve/CVE-2026-53277 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2492725 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53277.json (opens in a new tab)x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:64775 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2026-53277)Record last updated .