When len == 0 nread can have an uninitialized value that gets used.
Initialize it. Note that zero-length reads happen when there's
nothing in the checkpoint header except the type and len fields.
This means the first read is sizeof(ckpt_hdr) and the second,
"payload", read is zero length.
Signed-off-by: Matt Helsley <matthltc@xxxxxxxxxx>
---
ckptinfo.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/ckptinfo.c b/ckptinfo.c
index d73b38c..23db9fb 100644
--- a/ckptinfo.c
+++ b/ckptinfo.c
@@ -157,7 +157,7 @@ int main(int argc, char *argv[])
static int __image_read(int fd, void *buf, int len)
{
- ssize_t nread;
+ ssize_t nread = 0;
int nleft;
for (nleft = len; nleft; nleft -= nread) {
--
1.6.3.3
_______________________________________________
Containers mailing list
Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/containers
