| TITLE: BUG: bad unlock balance in ipmr_mfc_seq_stop |
| |
| [ 264.305036] ===================================== |
| [ 264.309846] [ BUG: bad unlock balance detected! ] |
| [ 264.314656] 4.9.65-gea83e4a #95 Not tainted |
| [ 264.318945] ------------------------------------- |
| [ 264.323751] syz-executor1/1081 is trying to release lock (mrt_lock) at: |
| [ 264.330694] [<ffffffff834dea24>] ipmr_mfc_seq_stop+0xe4/0x140 |
| [ 264.336540] but there are no more locks to release! |
| [ 264.341515] |
| [ 264.341515] other info that might help us debug this: |
| [ 264.348145] 1 lock held by syz-executor1/1081: |
| [ 264.352688] #0: (&p->lock){+.+.+.}, at: [<ffffffff815e4ded>] seq_read+0xdd/0x1290 |
| [ 264.360901] |
| [ 264.360901] stack backtrace: |
| [ 264.365364] CPU: 1 PID: 1081 Comm: syz-executor1 Not tainted 4.9.65-gea83e4a #95 |
| [ 264.372860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 264.382178] ffff8801bd87f948 ffffffff81d90469 ffffffff849ae8b8 ffff8801be6c1800 |
| [ 264.390127] ffffffff834dea24 ffffffff849ae8b8 ffff8801be6c2088 ffff8801bd87f978 |
| [ 264.398073] ffffffff81235524 dffffc0000000000 ffffffff849ae8b8 00000000ffffffff |
| [ 264.406014] Call Trace: |
| [ 264.408566] [<ffffffff81d90469>] dump_stack+0xc1/0x128 |
| ... |
| [ 264.592630] [<ffffffff838a9745>] entry_SYSCALL_64_fastpath+0x23/0xc6 |
