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
