Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c44b6be62e8dd4ee0a308c36a70620613e6fc55f before 77ff27ff0e4529a003c8a1c2492c111968c378d3; affected c44b6be62e8dd4ee0a308c36a70620613e6fc55f before 630c0e6064daf84f17aad1a7d9ca76b562e3fe47; affected c44b6be62e8dd4ee0a308c36a70620613e6fc55f before c5e81e672699e0c5557b2b755cc8f7a69aa92bff |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 6.12.45 through 6.12.*; unaffected 6.16.5 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/77ff27ff0e4529a003c8a1c2492c111968c378d3
- https://git.kernel.org/stable/c/630c0e6064daf84f17aad1a7d9ca76b562e3fe47
- https://git.kernel.org/stable/c/c5e81e672699e0c5557b2b755cc8f7a69aa92bff
ADP enrichment
No English description supplied.
No references supplied.