NOHZ: local_softirq_pending 08
INFO: task syz-executor.3:28581 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D28664 28581 8435 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007f89d0bb89c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f89d0bb8a58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007f89d0bb8a00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f89d0bb8a40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bf2c
INFO: task syz-executor.3:28586 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D28664 28586 8435 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007f89d0b979c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f89d0b97a58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007f89d0b97a00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f89d0b97a40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bfd4
INFO: task syz-executor.2:28580 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28664 28580 8432 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fe1b193e9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe1b193ea58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fe1b193ea00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe1b193ea40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bf2c
INFO: task syz-executor.2:28587 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28664 28587 8432 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fe1b191d9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe1b191da58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fe1b191da00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe1b191da40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bfd4
INFO: task syz-executor.1:28579 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D28664 28579 8434 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007f3fe186b9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3fe186ba58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007f3fe186ba00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3fe186ba40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bf2c
INFO: task syz-executor.1:28588 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D28664 28588 8434 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007f3fe184a9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3fe184aa58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007f3fe184aa00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3fe184aa40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bfd4
INFO: task syz-executor.5:28583 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D28664 28583 8439 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fb30b38b9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb30b38ba58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fb30b38ba00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fb30b38ba40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bf2c
INFO: task syz-executor.5:28589 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D28664 28589 8439 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fb30b36a9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb30b36aa58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fb30b36aa00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fb30b36aa40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bfd4
INFO: task syz-executor.4:28585 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4 D28664 28585 8430 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fc1a106e9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc1a106ea58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fc1a106ea00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fc1a106ea40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bf2c
INFO: task syz-executor.4:28590 blocked for more than 140 seconds.
Not tainted 4.19.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4 D28664 28590 8430 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x866/0x1dc0 kernel/sched/core.c:3515
schedule+0x92/0x1c0 kernel/sched/core.c:3559
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x726/0x1300 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+0x13e/0x170 net/netlink/genetlink.c:625
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
genl_rcv+0x29/0x40 net/netlink/genetlink.c:638
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
___sys_sendmsg+0x803/0x920 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x415051
Code: 4c 89 e7 49 89 c5 e8 de 78 00 00 4c 89 e7 48 89 44 24 18 e8 31 79 00 00 48 8d 54 24 24 48 8d 74 24 28 4c 89 e7 4c 63 f0 89 c5 <e8> ba 6c 00 00 4c 89 e7 e8 a2 61 00 00 4c 89 e7 48 89 c3 e8 77 61
RSP: 002b:00007fc1a104d9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc1a104da58 RCX: 0000000000415051
RDX: 0000000000000000 RSI: 00007fc1a104da00 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fc1a104da40
R13: 0000000000000b8e R14: 00000000004d63a8 R15: 000000000075bfd4
Showing all locks held in the system:
1 lock held by khungtaskd/1081:
#0: 00000000705f813e (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4438
1 lock held by rsyslogd/7927:
#0: 0000000015ccb2fd (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:767
2 locks held by getty/8050:
#0: 00000000adb19efe (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 0000000005330e8e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8051:
#0: 00000000ef26d1bb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 00000000dbefbabe (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8052:
#0: 00000000cf1e7085 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 000000003ba52a5a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8053:
#0: 00000000d2d589d4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 000000006a1a3a05 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8054:
#0: 0000000010b81a00 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 000000003ef9b96b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8055:
#0: 0000000021f0a336 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 00000000b7a1de94 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
2 locks held by getty/8056:
#0: 000000006e1f0a6a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362
#1: 00000000ee1b0e05 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154
4 locks held by syz-executor.0/28568:
2 locks held by syz-executor.3/28581:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.3/28586:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.2/28580:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.2/28587:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.1/28579:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.1/28588:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.5/28583:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.5/28589:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.4/28585:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
2 locks held by syz-executor.4/28590:
#0: 00000000f6a00221 (cb_lock){++++}, at: genl_rcv+0x1a/0x40 net/netlink/genetlink.c:637
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: 0000000043d96352 (genl_mutex){+.+.}, at: genl_rcv_msg+0x13e/0x170 net/netlink/genetlink.c:625
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1081 Comm: khungtaskd Not tainted 4.19.101-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+0x197/0x210 lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 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:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x9df/0xee0 kernel/hung_task.c:287
kthread+0x354/0x420 kernel/kthread.c:246
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8451 Comm: kworker/u4:3 Not tainted 4.19.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:separate_irq_context kernel/locking/lockdep.c:3054 [inline]
RIP: 0010:__lock_acquire+0x81d/0x49c0 kernel/locking/lockdep.c:3402
Code: 03 0f b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d9 2e 00 00 49 8d 7a 21 41 0f b6 45 21 48 ba 00 00 00 00 00 fc ff df <48> 89 f9 48 c1 e9 03 0f b6 14 11 48 89 f9 83 e1 07 38 ca 7f 08 84
RSP: 0018:ffff888089b77a80 EFLAGS: 00000046
RAX: 0000000000000005 RBX: 000000000000002d RCX: 1ffff11014f059ce
RDX: dffffc0000000000 RSI: ffff8880a782ce00 RDI: ffff8880a782ce71
RBP: ffff888089b77c50 R08: 0000000000000000 R09: 0000000000000002
R10: ffff8880a782ce50 R11: 000000000000002d R12: f2c661087ae5a8d9
R13: ffff8880a782ce28 R14: ffff8880a782c580 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 0000000094dca000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
rcu_lock_acquire include/linux/rcupdate.h:242 [inline]
rcu_read_lock include/linux/rcupdate.h:627 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:419 [inline]
batadv_nc_worker+0x117/0x760 net/batman-adv/network-coding.c:730
process_one_work+0x989/0x1750 kernel/workqueue.c:2153
worker_thread+0x98/0xe40 kernel/workqueue.c:2296
kthread+0x354/0x420 kernel/kthread.c:246
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415