Em Tue, 11 Aug 2020 16:55:24 +0200 pet...@infradead.org escreveu: > On Tue, Aug 11, 2020 at 04:34:27PM +0200, Mauro Carvalho Chehab wrote: > > [33] .plt PROGBITS 0000000000000340 00035c80 > > 0000000000000001 0000000000000000 WAX 0 0 1 > > [34] .init.plt NOBITS 0000000000000341 00035c81 > > 0000000000000001 0000000000000000 WA 0 0 1 > > [35] .text.ftrace[...] PROGBITS 0000000000000342 00035c81 > > 0000000000000001 0000000000000000 WAX 0 0 1 > > .plt and .text.ftrace_tramplines are buggered. > > arch/arm64/kernel/module.lds even marks then as NOLOAD.
Hmm... Shouldn't the code at module_enforce_rwx_sections() or at load_module() ignore such sections instead of just rejecting probing all modules? I mean, if the existing toolchain is not capable of excluding those sections, either the STRICT_MODULE_RWX hardening should be disabled, if a broken toolchain is detected or some runtime code should handle such sections on a different way. Thanks, Mauro
