Re: [PATCH] btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()
From: Josef Bacik <josef@toxicpanda.com>
Date: 2021-11-16 14:39:46
Also in:
kernel-janitors
On Tue, Nov 16, 2021 at 02:50:25PM +0300, Dan Carpenter wrote:
If memdup_user() fails the error handing will crash when it tries
to kfree() an error pointer. Just return directly because there is
no cleanup required.
Fixes: 1a15eb724aae ("btrfs: use btrfs_get_dev_args_from_path in dev removal ioctls")
Signed-off-by: Dan Carpenter <redacted>Reviewed-by: Josef Bacik <josef@toxicpanda.com> Thanks, Josef