Vulnerability CVE-2024-46684


Published: 2024-09-13

Description:
In the Linux kernel, the following vulnerability has been resolved:

binfmt_elf_fdpic: fix AUXV size calculation when ELF_HWCAP2 is defined

create_elf_fdpic_tables() does not correctly account the space for the
AUX vector when an architecture has ELF_HWCAP2 defined. Prior to the
commit 10e29251be0e ("binfmt_elf_fdpic: fix /proc/<pid>/auxv") it
resulted in the last entry of the AUX vector being set to zero, but with
that change it results in a kernel BUG.

Fix that by adding one to the number of AUXV entries (nitems) when
ELF_HWCAP2 is defined.

 References:
https://git.kernel.org/stable/c/c507da85e4f80c630deb9e98222ccf4118cbe6f8
https://git.kernel.org/stable/c/c6a09e342f8e6d3cac7f7c5c14085236aca284b9

Copyright 2026, cxsecurity.com

 

Back to Top