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| /openbmc/linux/fs/btrfs/ |
| H A D | ioctl.c | d815b3f2 Tue Nov 16 05:50:25 CST 2021 Dan Carpenter <dan.carpenter@oracle.com> btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()
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")
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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