Description
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().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c44b6be62e8dd4ee0a308c36a70620613e6fc55f to < 77ff27ff0e4529a003c8a1c2492c111968c378d3affectedc44b6be62e8dd4ee0a308c36a70620613e6fc55f to < 630c0e6064daf84f17aad1a7d9ca76b562e3fe47affectedc44b6be62e8dd4ee0a308c36a70620613e6fc55f to < c5e81e672699e0c5557b2b755cc8f7a69aa92bffaffected
Linux Linux
Default version status: affected
6.8affected0 to < 6.8unaffected6.12.45 to ≤ 6.12.*unaffected6.16.5 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected