fuse: prevent fuse_put_request on invalid pointer
fuse_direct_io() has a loop where requests are allocated in each
iteration. if allocation fails, the loop is broken out and follows
into an unconditional fuse_put_request() on that invalid pointer.
Signed-off-by: Anand V. Avati <avati@gluster.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@kernel.org
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index a3492f7..5887a63 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1063,7 +1063,8 @@
break;
}
}
- fuse_put_request(fc, req);
+ if (!IS_ERR(req))
+ fuse_put_request(fc, req);
if (res > 0)
*ppos = pos;