[CRIU] [PATCH 2/9] read_fd_link(): don't overrun buf

[Kir Kolyshkin]

This is a classical off-by-one error. If sizeof(buf) is 512,
the last element is buf[511] but not buf[512].

Reported by Coverity, CID 114624, 114622 etc.

Signed-off-by: Kir Kolyshkin <kir at openvz.org>
---
 util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util.c b/util.c
index a1ab18b..7694448 100644
--- a/util.c
+++ b/util.c
@@ -467,7 +467,7 @@ int read_fd_link(int lfd, char *buf, size_t size)
 		pr_err("Buffer for read link of fd %d is too small\n", lfd);
 		return -1;
 	}
-	buf[ret] = 0;
+	buf[ret - 1] = 0;
 
 	return ret;
 }
-- 
2.4.3