IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 8021q: adding VLAN 0 to HW filter on device team0 ===================================== WARNING: bad unlock balance detected! 4.19.0-rc8+ #73 Not tainted ------------------------------------- syz-executor0/5729 is trying to release lock (&file->mut) at: [] ucma_destroy_id+0x2cb/0x550 drivers/infiniband/core/ucma.c:628 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor0/5729: #0: 00000000d467406b (&file->mut){+.+.}, at: ucma_destroy_id+0x26b/0x550 drivers/infiniband/core/ucma.c:626 stack backtrace: CPU: 1 PID: 5729 Comm: syz-executor0 Not tainted 4.19.0-rc8+ #73 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113 print_unlock_imbalance_bug.cold.48+0xcc/0xd8 kernel/locking/lockdep.c:3464 __lock_release kernel/locking/lockdep.c:3671 [inline] lock_release+0x785/0x970 kernel/locking/lockdep.c:3919 __mutex_unlock_slowpath+0x102/0x8c0 kernel/locking/mutex.c:1197 mutex_unlock+0xd/0x10 kernel/locking/mutex.c:713 ucma_destroy_id+0x2cb/0x550 drivers/infiniband/core/ucma.c:628 ucma_write+0x365/0x460 drivers/infiniband/core/ucma.c:1689 __vfs_write+0x119/0x9f0 fs/read_write.c:485 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f823e86dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000018 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f823e86e6d4 R13: 00000000004cb4f8 R14: 00000000004d8b68 R15: 00000000ffffffff