Commit 1c8c2520 authored Aug 14, 2019 by zhengbin Committed by Greg Kroah-Hartman Oct 11, 2019

fuse: fix memleak in cuse_channel_open



[ Upstream commit 9ad09b1976c562061636ff1e01bfc3a57aebe56b ]

If cuse_send_init fails, need to fuse_conn_put cc->fc.

cuse_channel_open->fuse_conn_init->refcount_set(&fc->count, 1)
                 ->fuse_dev_alloc->fuse_conn_get
                 ->fuse_dev_free->fuse_conn_put

Fixes: cc080e9e ("fuse: introduce per-instance fuse_dev structure")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 414755a4

fs/fuse/cuse.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -513,6 +513,7 @@ static int cuse_channel_open(struct inode inode, struct file file)
		rc = cuse_send_init(cc);
		if (rc) {
		fuse_dev_free(fud);
		fuse_conn_put(&cc->fc);
		return rc;
		}
		file->private_data = fud;