Re: [PATCH v4 1/2] module: add elf_check_module_arch for module specific elf arch checks
flat view
From: Segher Boessenkool <hidden>
Date: 2021-06-15 12:54:12
Also in:
lkml
On Tue, Jun 15, 2021 at 02:17:40PM +0200, Jessica Yu wrote:
quoted hunk ↗ jump to hunk
+int __weak elf_check_module_arch(Elf_Ehdr *hdr) +{ + return 1; +}
But is this a good idea? It isn't useful to be able to attempt to load a module not compiled for your architecture, and it increases the attack surface tremendously. These checks are one of the few things that can *not* be weak symbols, imo. Segher