From: Zhihao Cheng <chengzhihao1@xxxxxxxxxx> commit e2a05cc7f8229e150243cdae40f2af9021d67a4a upstream. Release the authentication related resource in some error handling branches in mount_ubifs(). Signed-off-by: Zhihao Cheng <chengzhihao1@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # 4.20+ Fixes: d8a22773a12c6d7 ("ubifs: Enable authentication support") Reviewed-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Signed-off-by: Richard Weinberger <richard@xxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/ubifs/super.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1313,7 +1313,7 @@ static int mount_ubifs(struct ubifs_info err = ubifs_read_superblock(c); if (err) - goto out_free; + goto out_auth; c->probing = 0; @@ -1325,18 +1325,18 @@ static int mount_ubifs(struct ubifs_info ubifs_err(c, "'compressor \"%s\" is not compiled in", ubifs_compr_name(c, c->default_compr)); err = -ENOTSUPP; - goto out_free; + goto out_auth; } err = init_constants_sb(c); if (err) - goto out_free; + goto out_auth; sz = ALIGN(c->max_idx_node_sz, c->min_io_size) * 2; c->cbuf = kmalloc(sz, GFP_NOFS); if (!c->cbuf) { err = -ENOMEM; - goto out_free; + goto out_auth; } err = alloc_wbufs(c); @@ -1611,6 +1611,8 @@ out_wbufs: free_wbufs(c); out_cbuf: kfree(c->cbuf); +out_auth: + ubifs_exit_authentication(c); out_free: kfree(c->write_reserve_buf); kfree(c->bu.buf);