net/ipv4/route.c: Handle large offsets properly in procfs read operation.

c5ccd028 · David S. Miller · 2a1b4473 · c5ccd028
Commit c5ccd028 authored Jul 22, 2002 by David S. Miller
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net/ipv4/route.c net/ipv4/route.c +5 -0

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--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2429,6 +2429,11 @@ static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
 	if ((offset & 3) || (length & 3))
 		return -EIO;

+	if (offset >= sizeof(struct ip_rt_acct) * 256) {
+		*eof = 1;
+		return 0;
+	}
+
 	if (offset + length >= sizeof(struct ip_rt_acct) * 256) {
 		length = sizeof(struct ip_rt_acct) * 256 - offset;
 		*eof = 1;