Module Name: src
Committed By: maxv
Date: Sat Feb 22 20:08:39 UTC 2020
Modified Files:
src/sys/kern: subr_msan.c
Log Message:
Be less strict: when copyinstr() returns ENAMETOOLONG, it does initialize
the buffer, so mark it as such.
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/kern/subr_msan.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/subr_msan.c
diff -u src/sys/kern/subr_msan.c:1.7 src/sys/kern/subr_msan.c:1.8
--- src/sys/kern/subr_msan.c:1.7 Fri Jan 31 08:26:10 2020
+++ src/sys/kern/subr_msan.c Sat Feb 22 20:08:39 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_msan.c,v 1.7 2020/01/31 08:26:10 maxv Exp $ */
+/* $NetBSD: subr_msan.c,v 1.8 2020/02/22 20:08:39 maxv Exp $ */
/*
* Copyright (c) 2019-2020 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_msan.c,v 1.7 2020/01/31 08:26:10 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_msan.c,v 1.8 2020/02/22 20:08:39 maxv Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -885,7 +885,7 @@ kmsan_copyinstr(const void *uaddr, void
kmsan_check_arg(sizeof(uaddr) + sizeof(kaddr) +
sizeof(len) + sizeof(done), "copyinstr():args");
ret = copyinstr(uaddr, kaddr, len, &_done);
- if (ret == 0)
+ if (ret == 0 || ret == ENAMETOOLONG)
kmsan_shadow_fill(kaddr, KMSAN_STATE_INITED, _done);
if (done != NULL) {
*done = _done;
