INFO: task syz-executor.4:10441 blocked for more than 143 seconds.
Not tainted 5.10.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25216 pid:10441 ppid: 8832 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3774 [inline]
__schedule+0x893/0x2130 kernel/sched/core.c:4523
schedule+0xcf/0x270 kernel/sched/core.c:4601
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4660
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
ip_tunnel_init_net+0x321/0x9d0 net/ipv4/ip_tunnel.c:1062
vti_init_net+0x2a/0x360 net/ipv4/ip_vti.c:501
ops_init+0xaf/0x470 net/core/net_namespace.c:152
setup_net+0x2d8/0x850 net/core/net_namespace.c:342
copy_net_ns+0x2cf/0x5e0 net/core/net_namespace.c:483
create_new_namespaces+0x3f6/0xb10 kernel/nsproxy.c:110
copy_namespaces+0x385/0x470 kernel/nsproxy.c:179
copy_process+0x2b61/0x6e90 kernel/fork.c:2098
kernel_clone+0xe7/0xab0 kernel/fork.c:2456
__do_sys_clone+0xc8/0x110 kernel/fork.c:2573
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: Unable to access opcode bytes at RIP 0x45de8f.
RSP: 002b:00007f0eb4e94c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000002040 RCX: 000000000045deb9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 000000000118bf70 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 000000000169fb7f R14: 00007f0eb4e959c0 R15: 000000000118bf2c
INFO: task syz-executor.5:10515 blocked for more than 144 seconds.
Not tainted 5.10.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27448 pid:10515 ppid: 8918 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:3774 [inline]
__schedule+0x893/0x2130 kernel/sched/core.c:4523
schedule+0xcf/0x270 kernel/sched/core.c:4601
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4660
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
sock_do_ioctl+0x1f2/0x2d0 net/socket.c:1060
sock_ioctl+0x3b8/0x730 net/socket.c:1198
vfs_ioctl fs/ioctl.c:48 [inline]
__do_sys_ioctl fs/ioctl.c:753 [inline]
__se_sys_ioctl fs/ioctl.c:739 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: Unable to access opcode bytes at RIP 0x45de8f.
RSP: 002b:00007f807b4e0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000013200 RCX: 000000000045deb9
RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000006
RBP: 000000000118c0b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c07c
R13: 000000000169fb7f R14: 00007f807b4e19c0 R15: 000000000118c07c
INFO: task syz-executor.0:10479 blocked for more than 144 seconds.
Not tainted 5.10.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26880 pid:10479 ppid: 8526 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:3774 [inline]
__schedule+0x893/0x2130 kernel/sched/core.c:4523
schedule+0xcf/0x270 kernel/sched/core.c:4601
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4660
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x3f9/0xad0 net/core/rtnetlink.c:5559
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:671
____sys_sendmsg+0x6e8/0x810 net/socket.c:2353
___sys_sendmsg+0xf3/0x170 net/socket.c:2407
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2440
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: Unable to access opcode bytes at RIP 0x45de8f.
RSP: 002b:00007fdc8f800c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002e640 RCX: 000000000045deb9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 000000000169fb7f R14: 00007fdc8f8019c0 R15: 000000000118bf2c
Showing all locks held in the system:
2 locks held by kworker/u4:4/160:
1 lock held by khungtaskd/1659:
#0: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6253
1 lock held by in:imklog/8210:
#0: ffff8880182be0f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:932
3 locks held by kworker/1:4/9821:
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
#0: ffff8880212fdd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 kernel/workqueue.c:2243
#1: ffffc90016147da8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 kernel/workqueue.c:2247
#2: ffffffff8c925888 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4568
2 locks held by syz-executor.4/10441:
#0: ffffffff8c9136d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2ac/0x5e0 net/core/net_namespace.c:479
#1: ffffffff8c925888 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x321/0x9d0 net/ipv4/ip_tunnel.c:1062
1 lock held by syz-executor.5/10515:
#0: ffffffff8c925888 (rtnl_mutex){+.+.}-{3:3}, at: sock_do_ioctl+0x1f2/0x2d0 net/socket.c:1060
1 lock held by syz-executor.0/10479:
#0: ffffffff8c925888 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c925888 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 net/core/rtnetlink.c:5559
2 locks held by syz-executor.0/10483:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1659 Comm: khungtaskd Not tainted 5.10.0-rc2-syzkaller #0
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+0x107/0x163 lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
watchdog+0xd43/0xfa0 kernel/hung_task.c:294
kthread+0x3af/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10483 Comm: syz-executor.0 Not tainted 5.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline]
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline]
RIP: 0010:lock_is_held_type+0xc1/0x100 kernel/locking/lockdep.c:5477
Code: e0 03 44 39 f0 41 0f 94 c4 48 c7 c7 40 5e 4b 89 e8 d4 0b 00 00 b8 ff ff ff ff 65 0f c1 05 37 89 1d 77 83 f8 01 75 23 ff 34 24 <9d> 48 83 c4 08 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 e4
RSP: 0018:ffffc9000188eb68 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 1ffffffff19d976b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8b337100 R08: ffffffff87108cf8 R09: ffff888020509c07
R10: ffffed10040a1380 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888010ec2350 R14: 00000000ffffffff R15: ffff888010ec2350
FS: 00007fdc8f7e0700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feaf0860000 CR3: 000000002ca94000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:271 [inline]
___might_sleep+0x1f9/0x2b0 kernel/sched/core.c:7264
__mutex_lock_common kernel/locking/mutex.c:935 [inline]
__mutex_lock+0xa9/0x10e0 kernel/locking/mutex.c:1103
tcf_idr_check_alloc+0x78/0x3b0 net/sched/act_api.c:501
tcf_police_init+0x347/0x13a0 net/sched/act_police.c:81
tcf_action_init_1+0x1a3/0x990 net/sched/act_api.c:993
tcf_exts_validate+0x138/0x420 net/sched/cls_api.c:3058
rsvp_change+0x291/0x27a0 net/sched/cls_rsvp.h:502
tc_new_tfilter+0x1398/0x2130 net/sched/cls_api.c:2129
rtnetlink_rcv_msg+0x80e/0xad0 net/core/rtnetlink.c:5553
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:671
____sys_sendmsg+0x331/0x810 net/socket.c:2353
___sys_sendmsg+0xf3/0x170 net/socket.c:2407
__sys_sendmmsg+0x195/0x470 net/socket.c:2497
__do_sys_sendmmsg net/socket.c:2526 [inline]
__se_sys_sendmmsg net/socket.c:2523 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2523
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fdc8f7dfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027fc0 RCX: 000000000045deb9
RDX: 04924924924926d3 RSI: 0000000020000200 RDI: 0000000000000008
RBP: 000000000118c010 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4
R13: 000000000169fb7f R14: 00007fdc8f7e09c0 R15: 000000000118bfd4