CVE-2025-37996 - KVM arm64 Uninitialized Pointer Vulnerability

CVE-2025-37996 - KVM arm64 Uninitialized Pointer Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Thu, 05/29/2025 - 20:42
CVE ID : CVE-2025-37996
Published : May 29, 2025, 2:15 p.m. | 3 hours, 58 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort() Commit fce886a60207 ("KVM: arm64: Plumb the pKVM MMU in KVM") made the initialization of the local memcache variable in user_mem_abort() conditional, leaving a codepath where it is used uninitialized via kvm_pgtable_stage2_map(). This can fail on any path that requires a stage-2 allocation without transition via a permission fault or dirty logging. Fix this by making sure that memcache is always valid.
Severity: 0.0 | NA
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