Fix memory leak in recv_skip

When the exception branch exits, the buf is leaked.

Reviewed by: Richard Laager <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: luozhengzheng <[email protected]>
Closes #5262 

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/libzfs/libzfs_sendrecv.c b/lib/libzfs/libzfs_sendrecv.c
index ff84a1acd..55131369e 100644
--- a/lib/libzfs/libzfs_sendrecv.c
+++ b/lib/libzfs/libzfs_sendrecv.c
@@ -3025,6 +3025,7 @@ recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap)
 		default:
 			zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
 			    "invalid record type"));
+			free(buf);
 			return (zfs_error(hdl, EZFS_BADSTREAM, errbuf));
 		}
 	}