keychord: invalid keycode count 0 ===================================== [ BUG: bad unlock balance detected! ] 4.4.114-ga81d322 #4 Not tainted ------------------------------------- syz-executor2/8661 is trying to release lock (mrt_lock) at: [] ipmr_mfc_seq_stop+0xe4/0x140 net/ipv6/ip6mr.c:553 but there are no more locks to release! other info that might help us debug this: 2 locks held by syz-executor2/8661: #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0x9f/0xc0 fs/file.c:780 #1: (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x1270 fs/seq_file.c:178 stack backtrace: CPU: 0 PID: 8661 Comm: syz-executor2 Not tainted 4.4.114-ga81d322 #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 50b778adc0099231 ffff8801c3de7920 ffffffff81d0394d ffffffff84771c98 ffff8800a9876000 ffffffff833c7524 ffffffff84771c98 ffff8800a98768a8 ffff8801c3de7950 ffffffff81233354 dffffc0000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] print_unlock_imbalance_bug+0x174/0x1a0 kernel/locking/lockdep.c:3266 [] __lock_release kernel/locking/lockdep.c:3408 [inline] [] lock_release+0x72a/0xc10 kernel/locking/lockdep.c:3611 [] __raw_read_unlock include/linux/rwlock_api_smp.h:225 [inline] [] _raw_read_unlock+0x1a/0x50 kernel/locking/spinlock.c:255 [] ipmr_mfc_seq_stop+0xe4/0x140 net/ipv6/ip6mr.c:553 [] seq_read+0xa80/0x1270 fs/seq_file.c:283 [] proc_reg_read+0xef/0x170 fs/proc/inode.c:202 [] do_loop_readv_writev+0x141/0x1e0 fs/read_write.c:680 [] do_readv_writev+0x5dd/0x6e0 fs/read_write.c:810 [] vfs_readv+0x78/0xb0 fs/read_write.c:834 [] SYSC_readv fs/read_write.c:860 [inline] [] SyS_readv+0xd9/0x240 fs/read_write.c:852 [] entry_SYSCALL_64_fastpath+0x1c/0x98 keychord: keycode 16224 out of range keychord: keycode 16224 out of range netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. keychord: invalid keycode count 0 tc_dump_action: action bad kind keychord: invalid keycode count 0 keychord: invalid keycode count 0 keychord: invalid keycode count 0 netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. tc_dump_action: action bad kind keychord: invalid keycode count 0 keychord: invalid keycode count 0 keychord: invalid keycode count 0 binder: release 8726:8730 transaction 60 out, still active binder: undelivered TRANSACTION_COMPLETE binder: 8726:8730 BC_FREE_BUFFER u0000000000000000 no match binder: send failed reply for transaction 60, target dead binder_alloc: 8726: binder_alloc_buf, no vma binder: 8726:8736 transaction failed 29189/-3, size 0-0 line 3128 keychord: invalid keycode count 0 binder: 8726:8739 BC_FREE_BUFFER u0000000000000000 no match netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. IPv6: NLM_F_CREATE should be specified when creating new route IPv6: Can't replace route, no match found binder: undelivered TRANSACTION_ERROR: 29189 netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 156 bytes leftover after parsing attributes in process `syz-executor5'. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8974 at mm/page_alloc.c:3069 __alloc_pages_slowpath mm/page_alloc.c:3069 [inline]() WARNING: CPU: 1 PID: 8974 at mm/page_alloc.c:3069 __alloc_pages_nodemask+0x62a/0x15f0 mm/page_alloc.c:3315()