RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007feaaa4346d4 R13: 00000000004c3891 R14: 00000000004d56d0 R15: 0000000000000005 IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 INFO: task syz-executor5:28013 blocked for more than 140 seconds. Not tainted 4.19.0-rc7+ #275 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D23792 28013 5978 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3575 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0x13a/0x168 net/netlink/genetlink.c:624 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: Bad RIP value. RSP: 002b:00007fe01a64ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 000000000000000a RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe01a64b6d4 R13: 00000000004c3891 R14: 00000000004d56d0 R15: 00000000ffffffff INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 982 Comm: khungtaskd Not tainted 4.19.0-rc7+ #275 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+0x1c4/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb3e/0x1050 kernel/hung_task.c:265 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.154 msecs NMI backtrace for cpu 0 CPU: 0 PID: 27968 Comm: syz-executor4 Not tainted 4.19.0-rc7+ #275 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bytes_is_nonzero mm/kasan/kasan.c:167 [inline] RIP: 0010:memory_is_nonzero mm/kasan/kasan.c:184 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline] RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline] RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline] RIP: 0010:check_memory_region+0x129/0x1b0 mm/kasan/kasan.c:267 Code: 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 4c 39 c0 74 97 80 38 00 <48> 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2 74 59 e8 d2 0f 00 00 5b RSP: 0018:ffff8801175cea08 EFLAGS: 00000246 RAX: ffffed00396237e7 RBX: ffffed00396237e7 RCX: ffffffff839ebaab RDX: 0000000000000001 RSI: 0000000000000058 RDI: ffff8801cb11bf00 RBP: ffff8801175cea20 R08: ffffed00396237eb R09: ffffed00396237e0 R10: ffffed00396237ea R11: ffff8801cb11bf57 R12: ffffed00396237eb R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801175ceae8 FS: 00007feaaa434700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001feee00 CR3: 0000000187302000 CR4: 00000000001426f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: memset+0x23/0x40 mm/kasan/kasan.c:285 memset include/linux/string.h:330 [inline] nla_parse+0xab/0x480 lib/nlattr.c:247 nlmsg_parse include/net/netlink.h:398 [inline] tipc_nlmsg_parse+0xb8/0xf0 net/tipc/netlink.c:276 tipc_nl_publ_dump+0x92c/0xf9c net/tipc/socket.c:3470 __tipc_nl_compat_dumpit.isra.11+0x25d/0xb50 net/tipc/netlink_compat.c:196 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:925 [inline] tipc_nl_compat_sk_dump+0x88e/0xc50 net/tipc/netlink_compat.c:973 __tipc_nl_compat_dumpit.isra.11+0x389/0xb50 net/tipc/netlink_compat.c:205 tipc_nl_compat_dumpit+0x1f4/0x440 net/tipc/netlink_compat.c:270 tipc_nl_compat_handle net/tipc/netlink_compat.c:1147 [inline] tipc_nl_compat_recv+0x12b3/0x19a0 net/tipc/netlink_compat.c:1210 genl_family_rcv_msg+0x8a9/0x1140 net/netlink/genetlink.c:601 genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007feaaa433c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007feaaa433c90 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007feaaa4346d4 R13: 00000000004c3891 R14: 00000000004d56d0 R15: 0000000000000005