diff options
| author |   mickey <mickey@openbsd.org> | 2000-03-15 15:58:40 +0000 |
|---|---|---|
| committer | mickey <mickey@openbsd.org> | 2000-03-15 15:58:40 +0000 |
| commit | 57e9bb923df363fbd3a8ebfd0b317fc7b2699744 (patch) | |
| tree | b5bde3aa4ac7763933c1b236bcf881a796208778 | |
| parent | Fix the NetBSD id strings. (diff) | |
| download | wireguard-openbsd-57e9bb923df363fbd3a8ebfd0b317fc7b2699744.tar.xz wireguard-openbsd-57e9bb923df363fbd3a8ebfd0b317fc7b2699744.zip | |
prevent overflow in a diagnostic check; art@ ok
| -rw-r--r-- | sys/kern/subr_extent.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/subr_extent.c b/sys/kern/subr_extent.c index 33e778911c1..592a0ffa73c 100644 --- a/sys/kern/subr_extent.c +++ b/sys/kern/subr_extent.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_extent.c,v 1.8 2000/02/15 16:30:28 art Exp $ */ +/* $OpenBSD: subr_extent.c,v 1.9 2000/03/15 15:58:40 mickey Exp $ */ /* $NetBSD: subr_extent.c,v 1.7 1996/11/21 18:46:34 cgd Exp $ */ /*- @@ -531,7 +531,7 @@ extent_alloc_subregion1(ex, substart, subend, size, alignment, skew, boundary, substart, subend); panic("extent_alloc_subregion: bad subregion"); } - if ((size < 1) || (size > ((subend - substart) + 1))) { + if (size < 1 || (size - 1) > (subend - substart)) { printf("extent_alloc_subregion: extent `%s', size 0x%lx\n", ex->ex_name, size); panic("extent_alloc_subregion: bad size"); |