diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/block.c b/block.c index c108a76952..e95f613aa4 100644 --- a/block.c +++ b/block.c @@ -1506,7 +1506,7 @@ int bdrv_commit(BlockDriverState *bs) int n, ro, open_flags; int ret = 0; uint8_t *buf; - char filename[1024]; + char filename[PATH_MAX]; if (!drv) return -ENOMEDIUM; @@ -1520,7 +1520,8 @@ int bdrv_commit(BlockDriverState *bs) } ro = bs->backing_hd->read_only; - strncpy(filename, bs->backing_hd->filename, sizeof(filename)); + /* Use pstrcpy (not strncpy): filename must be NUL-terminated. */ + pstrcpy(filename, sizeof(filename), bs->backing_hd->filename); open_flags = bs->backing_hd->open_flags; if (ro) { |