CVE-2024-46684 Information

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 (infmt_elf_fdpic: fix /proc//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.

Reference

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