From b32300deb06b94f76a4aec144d23bbec3049d85f Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Fri, 6 Nov 2015 02:53:30 +0100 Subject: kernel: fix okaddr() check --- sys/src/9/port/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sys/src') diff --git a/sys/src/9/port/fault.c b/sys/src/9/port/fault.c index 00c905b8c..64832d23f 100644 --- a/sys/src/9/port/fault.c +++ b/sys/src/9/port/fault.c @@ -301,7 +301,7 @@ okaddr(uintptr addr, ulong len, int write) { Segment *s; - if((long)len >= 0) { + if((long)len >= 0 && addr+len >= addr) { for(;;) { s = seg(up, addr, 0); if(s == nil || (write && (s->type&SG_RONLY))) -- cgit v1.2.3