kern: usbehcipc.c fix CID 155940: Out-of-bounds write

2017-04-25 16:07:47 +02:00 · 2017-04-25 16:07:47 +02:00 · ac33157c37
parent 80a8501c05
commit ac33157c37
1 changed files with 2 additions and 1 deletions
--- a/sys/src/kern/amd64/usbehcipc.c
+++ b/sys/src/kern/amd64/usbehcipc.c
@ -209,7 +209,8 @@ scanpci(void)
 		if (i >= maxehci) {
 			iprint("usbehci: ignoring controllers after first %d, "
 				"at %#p\n", maxehci, io);
-			ctlrs[i] = nil;
+			if(i < Nhcis)
+				ctlrs[i] = nil;
 		}
 	}
 }