diff options
| author | Philip Guenther <guenther@cvs.openbsd.org> | 2022-11-07 01:41:58 +0000 |
|---|---|---|
| committer | Philip Guenther <guenther@cvs.openbsd.org> | 2022-11-07 01:41:58 +0000 |
| commit | 079941ccc68343241f45e4a554061c5b2b6c689f (patch) | |
| tree | 85e6631aa7754d69fc2ac16c212913ca961c089b /sys/arch/amd64/conf | |
| parent | 2f479c799896ce4d1e1e0332be560926bb839429 (diff) | |
In kpageflttrap(), validate a non-NULL pcb_onfault against an array
of permitted addresses, done via .nofault* sections that end up in
the linked kernel's rodata.
ok deraadt@ kettenis@
Diffstat (limited to 'sys/arch/amd64/conf')
| -rw-r--r-- | sys/arch/amd64/conf/ld.script | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/arch/amd64/conf/ld.script b/sys/arch/amd64/conf/ld.script index 18298f8b8c3..c02f60c66cb 100644 --- a/sys/arch/amd64/conf/ld.script +++ b/sys/arch/amd64/conf/ld.script @@ -1,4 +1,4 @@ -/* $OpenBSD: ld.script,v 1.18 2022/09/02 09:02:37 mlarkin Exp $ */ +/* $OpenBSD: ld.script,v 1.19 2022/11/07 01:41:57 guenther Exp $ */ /* * Copyright (c) 2009 Tobias Weingartner <weingart@tepid.org> @@ -85,6 +85,10 @@ SECTIONS { __rodata_start = ABSOLUTE(.); *(.rodata .rodata.*) + . = ALIGN(8); + __nofault_start = ABSOLUTE(.); + *(.nofault.*) *(.nofault) + __nofault_end = ABSOLUTE(.); *(.codepatch) *(.codepatchend) } :rodata =0xcccccccc |