1
INFO: task syz-executor:423 blocked for more than 143 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:423 tgid:423 ppid:416 flags:0x00000008
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
__rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
rtnetlink_rcv_msg+0x528/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6675
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz-executor:426 blocked for more than 143 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:426 tgid:426 ppid:419 flags:0x00000008
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
__rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
rtnetlink_rcv_msg+0x528/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6675
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz-executor:432 blocked for more than 144 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:432 tgid:432 ppid:422 flags:0x00000000
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz-executor:435 blocked for more than 144 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:435 tgid:435 ppid:424 flags:0x00000008
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task kworker/u16:6:436 blocked for more than 145 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u16:6 state:D stack:0 pid:436 tgid:436 ppid:2 flags:0x00000008
Workqueue: ipv6_addrconf addrconf_dad_work
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
addrconf_dad_work+0x64/0xa8c proc/self/cwd/common/net/ipv6/addrconf.c:4237
process_one_work+0x524/0xd04 proc/self/cwd/common/kernel/workqueue.c:3237
process_scheduled_works proc/self/cwd/common/kernel/workqueue.c:3318 [inline]
worker_thread+0x78c/0xa78 proc/self/cwd/common/kernel/workqueue.c:3399
kthread+0x228/0x25c proc/self/cwd/common/kernel/kthread.c:389
ret_from_fork+0x10/0x20 proc/self/cwd/common/arch/arm64/kernel/entry.S:860
INFO: task syz-executor:438 blocked for more than 146 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:438 tgid:438 ppid:1 flags:0x00000009
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
__rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
rtnetlink_rcv_msg+0x528/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6675
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz-executor:439 blocked for more than 146 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:439 tgid:439 ppid:1 flags:0x00000009
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
netlink_rcv_skb+0x130/0x23c proc/self/cwd/common/net/netlink/af_netlink.c:2537
rtnetlink_rcv+0x30/0x48 proc/self/cwd/common/net/core/rtnetlink.c:6693
netlink_unicast_kernel proc/self/cwd/common/net/netlink/af_netlink.c:1316 [inline]
netlink_unicast+0x48c/0x600 proc/self/cwd/common/net/netlink/af_netlink.c:1342
netlink_sendmsg+0x4fc/0x620 proc/self/cwd/common/net/netlink/af_netlink.c:1886
sock_sendmsg_nosec proc/self/cwd/common/net/socket.c:730 [inline]
__sock_sendmsg proc/self/cwd/common/net/socket.c:745 [inline]
__sys_sendto+0x228/0x2f8 proc/self/cwd/common/net/socket.c:2217
__do_sys_sendto proc/self/cwd/common/net/socket.c:2229 [inline]
__se_sys_sendto proc/self/cwd/common/net/socket.c:2225 [inline]
__arm64_sys_sendto+0x88/0xac proc/self/cwd/common/net/socket.c:2225
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz.2.31:483 blocked for more than 146 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.31 state:D stack:0 pid:483 tgid:483 ppid:367 flags:0x00000001
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
tun_detach proc/self/cwd/common/drivers/net/tun.c:698 [inline]
tun_chr_close+0x34/0x1e8 proc/self/cwd/common/drivers/net/tun.c:3517
__fput+0x148/0x528 proc/self/cwd/common/fs/file_table.c:431
__fput_sync+0x68/0xa4 proc/self/cwd/common/fs/file_table.c:516
__do_sys_close proc/self/cwd/common/fs/open.c:1590 [inline]
__se_sys_close proc/self/cwd/common/fs/open.c:1575 [inline]
__arm64_sys_close+0x108/0x174 proc/self/cwd/common/fs/open.c:1575
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
INFO: task syz.2.31:484 blocked for more than 147 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.31 state:D stack:0 pid:484 tgid:483 ppid:367 flags:0x00000009
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
ppp_create_interface proc/self/cwd/common/drivers/net/ppp/ppp_generic.c:3346 [inline] [ppp_generic]
ppp_unattached_ioctl proc/self/cwd/common/drivers/net/ppp/ppp_generic.c:1060 [inline] [ppp_generic]
ppp_ioctl+0x784/0x15c4 proc/self/cwd/common/drivers/net/ppp/ppp_generic.c:733 [ppp_generic]
vfs_ioctl proc/self/cwd/common/fs/ioctl.c:51 [inline]
__do_sys_ioctl proc/self/cwd/common/fs/ioctl.c:907 [inline]
__se_sys_ioctl proc/self/cwd/common/fs/ioctl.c:893 [inline]
__arm64_sys_ioctl+0x118/0x198 proc/self/cwd/common/fs/ioctl.c:893
__invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x94/0x1d4 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
el0_svc_common+0xec/0x1bc proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
do_el0_svc+0x3c/0x50 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
el0t_64_sync+0x198/0x19c proc/self/cwd/common/arch/arm64/kernel/entry.S:598
Showing all locks held in the system:
4 locks held by kworker/u16:0/11:
#0: ffffff80c0228558 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc0844a3d50 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc0834499f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x98/0x928 proc/self/cwd/common/net/core/net_namespace.c:596
#3: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by khungtaskd/54:
#0: ffffffc0832f4920 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x50 proc/self/cwd/common/include/linux/rcupdate.h:336
2 locks held by syslogd/111:
2 locks held by getty/344:
#0: ffffff80c48c20a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x5c proc/self/cwd/common/drivers/tty/tty_ldsem.c:340
#1: ffffffc085e3f2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x208/0xa88 proc/self/cwd/common/drivers/tty/n_tty.c:2211
1 lock held by sshd-session/345:
3 locks held by kworker/u16:3/390:
#0: ffffff80c0011558 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc0860b3d50 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
2 locks held by kworker/0:5/409:
1 lock held by syz-executor/423:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/426:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/432:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
1 lock held by syz-executor/435:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
3 locks held by kworker/u16:6/436:
#0: ffffff80c18f2158 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc08feebd50 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz-executor/438:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/439:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
2 locks held by syz-executor/475:
#0: ffffffc0834499f0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x34c/0x5c4 proc/self/cwd/common/net/core/net_namespace.c:506
#1: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz.2.31/483:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
2 locks held by syz.2.31/484:
#0: ffffffc07cd75130 (ppp_mutex){+.+.}-{4:4}, at: ppp_ioctl+0x78/0x15c4 proc/self/cwd/common/drivers/net/ppp/ppp_generic.c:729 [ppp_generic]
#1: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz-executor/487:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
=============================================
INFO: task kworker/u16:3:390 blocked for more than 149 seconds.
Tainted: G E 6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u16:3 state:D stack:0 pid:390 tgid:390 ppid:2 flags:0x00000008
Workqueue: events_unbound linkwatch_event
Call trace:
__switch_to+0x424/0x798 proc/self/cwd/common/arch/arm64/kernel/process.c:617
context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
__schedule+0xa48/0x1018 proc/self/cwd/common/kernel/sched/core.c:7737
__schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
schedule+0x54/0xdc proc/self/cwd/common/kernel/sched/core.c:7833
schedule_preempt_disabled+0x2c/0x4c proc/self/cwd/common/kernel/sched/core.c:7890
__mutex_lock_common+0x760/0x2174 proc/self/cwd/common/kernel/locking/mutex.c:692
__mutex_lock proc/self/cwd/common/kernel/locking/mutex.c:786 [inline]
mutex_lock_nested+0x34/0x48 proc/self/cwd/common/kernel/locking/mutex.c:838
rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
linkwatch_event+0x20/0x98 proc/self/cwd/common/net/core/link_watch.c:285
process_one_work+0x524/0xd04 proc/self/cwd/common/kernel/workqueue.c:3237
process_scheduled_works proc/self/cwd/common/kernel/workqueue.c:3318 [inline]
worker_thread+0x78c/0xa78 proc/self/cwd/common/kernel/workqueue.c:3399
kthread+0x228/0x25c proc/self/cwd/common/kernel/kthread.c:389
ret_from_fork+0x10/0x20 proc/self/cwd/common/arch/arm64/kernel/entry.S:860
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
4 locks held by kworker/u16:0/11:
#0: ffffff80c0228558 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc0844a3d50 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc0834499f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x98/0x928 proc/self/cwd/common/net/core/net_namespace.c:596
#3: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by khungtaskd/54:
#0: ffffffc0832f4920 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x50 proc/self/cwd/common/include/linux/rcupdate.h:336
2 locks held by getty/344:
#0: ffffff80c48c20a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x5c proc/self/cwd/common/drivers/tty/tty_ldsem.c:340
#1: ffffffc085e3f2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x208/0xa88 proc/self/cwd/common/drivers/tty/n_tty.c:2211
3 locks held by kworker/u16:3/390:
#0: ffffff80c0011558 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc0860b3d50 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
3 locks held by kworker/0:3/398:
1 lock held by syz-executor/423:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/426:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/432:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
1 lock held by syz-executor/435:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
3 locks held by kworker/u16:6/436:
#0: ffffff80c18f2158 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x3f4/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#1: ffffffc08feebd50 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x44c/0xd04 proc/self/cwd/common/kernel/workqueue.c:3211
#2: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz-executor/438:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: __rtnl_newlink proc/self/cwd/common/net/core/rtnetlink.c:3749 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x12f4 proc/self/cwd/common/net/core/rtnetlink.c:3772
1 lock held by syz-executor/439:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
2 locks held by syz-executor/475:
#0: ffffffc0834499f0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x34c/0x5c4 proc/self/cwd/common/net/core/net_namespace.c:506
#1: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz.2.31/483:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
2 locks held by syz.2.31/484:
#0: ffffffc07cd75130 (ppp_mutex){+.+.}-{4:4}, at: ppp_ioctl+0x78/0x15c4 proc/self/cwd/common/drivers/net/ppp/ppp_generic.c:729 [ppp_generic]
#1: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz-executor/487:
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock proc/self/cwd/common/net/core/rtnetlink.c:79 [inline]
#0: ffffffc08344b860 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x4dc/0x7b4 proc/self/cwd/common/net/core/rtnetlink.c:6672
=============================================
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