CVE-2026-43109
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
x86: shadow stacks: proper error handling for mmap lock
김영민 reports that shstk_pop_sigframe() doesn't check for errors from
mmap_read_lock_killable(), which is a silly oversight, and also shows
that we haven't marked those functions with '__must_check', which would
have immediately caught it.
So let's fix both issues.
https://git.kernel.org/stable/c/262b6d38a81d51b135db81e1f30c13d30e38feee
https://git.kernel.org/stable/c/52f657e34d7b21b47434d9d8b26fa7f6778b63a0
https://git.kernel.org/stable/c/c64cebcc5c4f223dbcbe7dcdf74908fc092a0aa4