CVS commit: src/sys/arch/x86/x86

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Wed Jul  1 00:52:22 UTC 2026

Modified Files:
        src/sys/arch/x86/x86: efi_machdep.c

Log Message:
x86/efi: Bypass kASAN memcpy when copying the efi runtime.

Fixes crash at boot with `options KASAN' enabled on EFI systems.

We could try to find some way to exclude the EFI runtime mappings
from kASAN, e.g. by hacking kasan_md_unsupported.  But there's a lot
of detailed exclusions to pass through to that (every entry in the
EFI memory map), and this is the only memcpy in the whole kernel that
all those details are likely to be applicable.

PR kern/60391: kernel panic in efi_init() with "options KASAN"


To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/x86/x86/efi_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.