On 2021/10/9 下午5:34, Tetsuo Handa wrote:
On 2021/10/09 15:59, Zqiang wrote:
The xa_insert() may be return error in __alloc_disk_node(), and the disk
object will be release, however there are two operations that will release
it, kfree(disk) and iput(disk->part0->bd_inode), the iput operations
will call call_rcu(), because the rcu callback executed is an asynchronous
actionthe, so when free disk object in rcu callback, the disk object haven
been released. solve it through a unified release action.
Reported-by: syzbot+8281086e8a6fbfbd952a@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Zqiang <qiang.zhang1211@xxxxxxxxx>
Thanks. But my patch is ready for 5.15.
https://lore.kernel.org/all/e6dd13c5-8db0-4392-6e78-a42ee5d2a1c4@xxxxxxxxxxxxxxxxxxx/T/#u
Thanks, there is a problem with my patch, your path is more suitable
