GHSA-64pc-rqj8-96w6

GHSA-64pc-rqj8-96w6 PUBLISHED CVSS 7.800000190734863 HIGH

Record from GitHub Advisory Database · Published September 16, 2025

In the Linux kernel, the following vulnerability has been resolved: efi: stmm: Fix incorrect buffer allocation method The communication buffer allocated by setup_mm_hdr() is later on passed to tee_shm_register_kernel_buf(). The latter expects those buffers to be contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause various corruptions or BUGs, specifically since commit 9aec2fb0fd5e ("slab: allocate frozen pages"), though it was broken before as well. Fix this by using alloc_pages_exact() instead of kmalloc().

Risk scores

CVSS 3.1

7.800000190734863

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Timeline

Sep 16, 2025 CVE Published
Apr 10, 2026 Security Advisory

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vulnetix vdb fixes GHSA-64pc-rqj8-96w6

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