c/r: fix off-by-one error

When we read sizeof(buf) bytes here, we'd write off the end of the array, which is bad :) Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>

c/r: fix off-by-one error
2735dfae · Tycho Andersen · 9f1f54b0 · 2735dfae
Commit 2735dfae authored Nov 02, 2016 by Tycho Andersen
Hide whitespace changes
Inline Side-by-side

Showing with 2 additions and 0 deletions

criu.c src/lxc/criu.c +2 -0

No files found.
--- a/src/lxc/criu.c
+++ b/src/lxc/criu.c
@@ -883,6 +883,8 @@ static void do_restore(struct lxc_container *c, int status_pipe, struct migrate_
 					goto out_fini_handler;
 				}

+				if (n == sizeof(buf))
+					n--;
 				buf[n] = 0;

 				ERROR("criu process exited %d, output:\n%s", WEXITSTATUS(status), buf);