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[Qemu-devel] [PATCH 4/4] ivshmem: check the value returned by fstat()
From: |
zhanghailiang |
Subject: |
[Qemu-devel] [PATCH 4/4] ivshmem: check the value returned by fstat() |
Date: |
Mon, 4 Aug 2014 16:25:44 +0800 |
The function fstat() may fail, so check its return value.
Signed-off-by: zhanghailiang <address@hidden>
---
hw/misc/ivshmem.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index 768e528..2667e9f 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -324,7 +324,10 @@ static int check_shm_size(IVShmemState *s, int fd) {
struct stat buf;
- fstat(fd, &buf);
+ if (fstat(fd, &buf) < 0) {
+ fprintf(stderr, "Cannot stat IVSHMEM: %s\n", strerror(errno));
+ return -1;
+ }
if (s->ivshmem_size > buf.st_size) {
fprintf(stderr,
--
1.7.12.4
[Qemu-devel] [PATCH 2/4] monitor: fix access freed memory, zhanghailiang, 2014/08/04
[Qemu-devel] [PATCH 3/4] virtio-blk: fix reference a pointer which might be freed, zhanghailiang, 2014/08/04