audit: type=1804 audit(1619439672.632:6574): pid=18064 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir604440934/syzkaller.OHwGDP/1000/bus" dev="sda1" ino=15011 res=1 device hsr_slave_1 left promiscuous mode device hsr_slave_0 left promiscuous mode BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 9275 Comm: kworker/u4:5 Not tainted 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 add_chain_cache kernel/locking/lockdep.c:2303 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2415 [inline] validate_chain kernel/locking/lockdep.c:2435 [inline] __lock_acquire.cold+0x19a/0x97c kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline] _raw_write_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:320 fib6_walker_link net/ipv6/ip6_fib.c:85 [inline] fib6_walk+0x9d/0x350 net/ipv6/ip6_fib.c:1748 fib6_clean_tree+0xc1/0xf0 net/ipv6/ip6_fib.c:1823 __fib6_clean_all+0xfd/0x230 net/ipv6/ip6_fib.c:1839 rt6_mtu_change+0x89/0xb0 net/ipv6/route.c:2972 addrconf_notify+0x77d/0x1c20 net/ipv6/addrconf.c:3388 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers_mtu net/core/dev.c:1706 [inline] dev_set_mtu+0x23d/0x3c0 net/core/dev.c:6913 team_port_del+0x683/0x910 drivers/net/team/team.c:1362 team_del_slave drivers/net/team/team.c:1983 [inline] team_device_event+0x6d0/0x950 drivers/net/team/team.c:2969 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xba0 net/core/dev.c:7203 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8285 unregister_netdevice_many net/core/dev.c:8284 [inline] default_device_exit_batch+0x2d8/0x380 net/core/dev.c:8746 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:145 cleanup_net+0x3b3/0x840 net/core/net_namespace.c:484 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves cramfs: wrong magic cramfs: wrong magic QAT: failed to copy from user cfg_data. kauditd_printk_skb: 1 callbacks suppressed audit: type=1804 audit(1619439675.102:6576): pid=18093 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir604440934/syzkaller.OHwGDP/1001/bus" dev="sda1" ino=15279 res=1 audit: type=1804 audit(1619439675.102:6577): pid=18093 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.0" name="/root/syzkaller-testdir604440934/syzkaller.OHwGDP/1001/bus" dev="sda1" ino=15279 res=1 rxrpc: AF_RXRPC: Leaked local ffff88804f507b40 {1} ------------[ cut here ]------------ kernel BUG at net/rxrpc/local_object.c:408! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 9275 Comm: kworker/u4:5 Not tainted 4.14.231-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net task: ffff88808fade480 task.stack: ffff888050ab8000 RIP: 0010:rxrpc_destroy_all_locals+0xe6/0x100 net/rxrpc/local_object.c:408 RSP: 0018:ffff888050abfc28 EFLAGS: 00010286 RAX: dffffc0000000000 RBX: ffff88804c551b80 RCX: fffffbfff17d77a8 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000286 RBP: ffff88804c551ba0 R08: ffff88808fade480 R09: dffffc0000000000 R10: 0000000000000000 R11: ffff88808fade480 R12: ffff88804c551ba0 R13: ffff88804c551bb0 R14: dffffc0000000000 R15: fffffbfff13c2baf FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee3e6f36b8 CR3: 00000000592f2000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rxrpc_exit_net+0x158/0x260 net/rxrpc/net_ns.c:78 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:142 cleanup_net+0x3b3/0x840 net/core/net_namespace.c:484 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 00 00 00 00 00 fc ff df 48 83 eb 20 e8 64 82 d7 fa 4c 8d 63 20 4c 39 e5 0f 85 9d 7d a0 00 e8 52 82 d7 fa 4c 89 ef e8 6a 46 a4 00 <0f> 0b 48 89 ef e8 d0 26 01 fb eb c0 90 90 90 90 90 90 90 90 90 RIP: rxrpc_destroy_all_locals+0xe6/0x100 net/rxrpc/local_object.c:408 RSP: ffff888050abfc28 ---[ end trace 88dd820d812faf9d ]---