Re: [PATCH] btrfs: Handle uninitialised inode eviction

[Josef Bacik]

On 06/29/2016 02:46 AM, Nikolay Borisov wrote:
> The code flow in btrfs_new_inode allows for btrfs_evict_inode to be
> called with not fully initialised inode (e.g. ->root member not
> being set). This can happen when btrfs_set_inode_index in
> btrfs_new_inode fails, which in turn would call iput for the newly
> allocated inode. This in turn leads to vfs calling into btrfs_evict_inode.
> This leads to null pointer dereference. To handle this situation check whether
> the passed inode has root set and just free it in case it doesn't.
>
> Signed-off-by: Nikolay Borisov <kernel@xxxxxxxx>

Reviewed-by: Josef Bacik <jbacik@xxxxxx>

Thanks,

Josef