CVE-2024-58008

Published: February 28, 2025Last modified: February 28, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y With vmalloc stack addresses enabled (CONFIG_VMAP_STACK=y) DCP trusted keys can crash during en- and decryption of the blob encryption key via the DCP crypto driver. This is caused by improperly using sg_init_one() with vmalloc'd stack buffers (plain_key_blob). Fix this by always using kmalloc() for buffers we give to the DCP crypto driver.

Status

References

• https://git.kernel.org/stable/c/3192f1c54dddb9b5820bf5e8677809949d8e9c66
• https://git.kernel.org/stable/c/3355594de46fb1cba663f12b9644b664b8a609f4
• https://git.kernel.org/stable/c/e8d9fab39d1f87b52932646b2f1e7877aa3fc0f4