INFO: task syz-executor.0:8399 blocked for more than 143 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23208 pid: 8399 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5213
__mutex_lock_common kernel/locking/mutex.c:1023 [inline]
__mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
xt_request_find_table_lock+0x27/0xf0 net/netfilter/x_tables.c:1253
get_info+0x178/0x720 net/ipv4/netfilter/arp_tables.c:807
do_arpt_get_ctl+0x456/0x8f0 net/ipv4/netfilter/arp_tables.c:1441
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1756
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4231
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2161
__do_sys_getsockopt net/socket.c:2176 [inline]
__se_sys_getsockopt net/socket.c:2173 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2173
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46750a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046750a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000a9f6cc R09: 0000000000a9f730
R10: 0000000000a9f6d0 R11: 0000000000000246 R12: 0000000000a9f6d0
R13: 000000000005899c R14: 0000000000000000 R15: 0000000000a9fe40
INFO: task syz-executor.1:8409 blocked for more than 144 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23912 pid: 8409 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5213
__mutex_lock_common kernel/locking/mutex.c:1023 [inline]
__mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
xt_request_find_table_lock+0x27/0xf0 net/netfilter/x_tables.c:1253
get_info+0x178/0x720 net/ipv4/netfilter/arp_tables.c:807
do_arpt_get_ctl+0x456/0x8f0 net/ipv4/netfilter/arp_tables.c:1441
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1756
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4231
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2161
__do_sys_getsockopt net/socket.c:2176 [inline]
__se_sys_getsockopt net/socket.c:2173 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2173
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46750a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046750a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000a9f6cc R09: 0000000000a9f730
R10: 0000000000a9f6d0 R11: 0000000000000246 R12: 0000000000a9f6d0
R13: 00000000000589ae R14: 0000000000000000 R15: 0000000000a9fe40
INFO: task syz-executor.2:8462 blocked for more than 144 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23912 pid: 8462 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5213
__mutex_lock_common kernel/locking/mutex.c:1023 [inline]
__mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
xt_request_find_table_lock+0x27/0xf0 net/netfilter/x_tables.c:1253
get_info+0x178/0x720 net/ipv4/netfilter/arp_tables.c:807
do_arpt_get_ctl+0x456/0x8f0 net/ipv4/netfilter/arp_tables.c:1441
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1756
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4231
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2161
__do_sys_getsockopt net/socket.c:2176 [inline]
__se_sys_getsockopt net/socket.c:2173 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2173
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46750a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046750a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000a9f6cc R09: 0000000000a9f730
R10: 0000000000a9f6d0 R11: 0000000000000246 R12: 0000000000a9f6d0
R13: 0000000000058995 R14: 0000000000000000 R15: 0000000000a9fe40
INFO: task syz-executor.3:8629 blocked for more than 145 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:23912 pid: 8629 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
synchronize_rcu_expedited+0x453/0x620 kernel/rcu/tree_exp.h:852
synchronize_rcu+0xdf/0x180 kernel/rcu/tree.c:3767
xt_replace_table+0x304/0x600 net/netfilter/x_tables.c:1389
__do_replace+0x1d7/0x8c0 net/ipv6/netfilter/ip6_tables.c:1083
do_replace net/ipv4/netfilter/arp_tables.c:984 [inline]
do_arpt_set_ctl+0xad8/0xea0 net/ipv4/netfilter/arp_tables.c:1418
nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0x3c3/0x3a00 net/ipv4/ip_sockglue.c:1435
tcp_setsockopt+0x136/0x2440 net/ipv4/tcp.c:3636
__sys_setsockopt+0x2db/0x610 net/socket.c:2117
__do_sys_setsockopt net/socket.c:2128 [inline]
__se_sys_setsockopt net/socket.c:2125 [inline]
__x64_sys_setsockopt+0xba/0x150 net/socket.c:2125
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46753a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046753a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000408 R09: 0000000000a9f730
R10: 000000000053c4f0 R11: 0000000000000246 R12: 0000000000a9f720
R13: 000000000158886b R14: 0000000000000000 R15: 0000000000a9fe40
INFO: task syz-executor.4:8663 blocked for more than 146 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24088 pid: 8663 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5213
__mutex_lock_common kernel/locking/mutex.c:1023 [inline]
__mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
xt_request_find_table_lock+0x27/0xf0 net/netfilter/x_tables.c:1253
get_info+0x178/0x720 net/ipv4/netfilter/arp_tables.c:807
do_arpt_get_ctl+0x456/0x8f0 net/ipv4/netfilter/arp_tables.c:1441
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1756
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4231
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2161
__do_sys_getsockopt net/socket.c:2176 [inline]
__se_sys_getsockopt net/socket.c:2173 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2173
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46750a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046750a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000a9f6cc R09: 0000000000a9f730
R10: 0000000000a9f6d0 R11: 0000000000000246 R12: 0000000000a9f6d0
R13: 00000000000591a4 R14: 0000000000000000 R15: 0000000000a9fe40
INFO: task syz-executor.5:8942 blocked for more than 146 seconds.
Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23912 pid: 8942 ppid: 1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4324 [inline]
__schedule+0x90c/0x21a0 kernel/sched/core.c:5075
schedule+0xcf/0x270 kernel/sched/core.c:5154
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5213
__mutex_lock_common kernel/locking/mutex.c:1023 [inline]
__mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1093
xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
xt_request_find_table_lock+0x27/0xf0 net/netfilter/x_tables.c:1253
get_info+0x178/0x720 net/ipv4/netfilter/arp_tables.c:807
do_arpt_get_ctl+0x456/0x8f0 net/ipv4/netfilter/arp_tables.c:1441
nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:116
ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline]
ip_getsockopt+0x164/0x1c0 net/ipv4/ip_sockglue.c:1756
tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:4231
__sys_getsockopt+0x21f/0x5f0 net/socket.c:2161
__do_sys_getsockopt net/socket.c:2176 [inline]
__se_sys_getsockopt net/socket.c:2173 [inline]
__x64_sys_getsockopt+0xba/0x150 net/socket.c:2173
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46750a
RSP: 002b:0000000000a9f6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000a9f6cc RCX: 000000000046750a
RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000a9f6cc R09: 0000000000a9f730
R10: 0000000000a9f6d0 R11: 0000000000000246 R12: 0000000000a9f6d0
R13: 0000000000058ab2 R14: 0000000000000000 R15: 0000000000a9fe40
Showing all locks held in the system:
2 locks held by kworker/1:0/19:
1 lock held by khungtaskd/1663:
#0: ffffffff8bf743a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6327
1 lock held by khugepaged/1670:
#0: ffffffff8c04e048 (lock#5){+.+.}-{3:3}, at: lru_add_drain_all+0x5f/0x6f0 mm/swap.c:777
1 lock held by in:imklog/8217:
#0: ffff88801d6579f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:961
1 lock held by syz-executor.0/8399:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
1 lock held by syz-executor.1/8409:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
1 lock held by syz-executor.2/8462:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
2 locks held by syz-executor.3/8629:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
#1: ffffffff8bf7cf68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8bf7cf68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:836
1 lock held by syz-executor.4/8663:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
1 lock held by syz-executor.5/8942:
#0: ffff888021858458 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x41/0x540 net/netfilter/x_tables.c:1206
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1663 Comm: khungtaskd Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0xfa/0x151 lib/dump_stack.c:120
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+0xd48/0xfb0 kernel/hung_task.c:294
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events prog_array_map_clear_deferred
RIP: 0010:hlock_id kernel/locking/lockdep.c:400 [inline]
RIP: 0010:__lock_acquire+0x9d4/0x54c0 kernel/locking/lockdep.c:4888
Code: 0f b6 04 02 84 c0 74 08 3c 03 0f 8e be 34 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 08 0f b6 45 22 83 e0 03 48 83 7c 24 20 00 <88> 44 24 18 0f 84 cb 00 00 00 65 48 8b 1c 25 00 f0 01 00 48 8d 83
RSP: 0018:ffffc90000d97898 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 140f7e9f856e2cc6 RCX: ffffffff8158d8b1
RDX: 1ffff11002338ba7 RSI: 0000000040f7e9f1 RDI: ffff8880119c5d39
RBP: ffff8880119c5d18 R08: 0000000000000002 R09: ffffffff8fab09af
R10: fffffbfff1f56135 R11: 0000000000000000 R12: ffff8880119c5340
R13: 0000000000000000 R14: ffff8880119c5cc8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc0eb6d7000 CR3: 0000000026881000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5510 [inline]
lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475
__mutex_lock_common kernel/locking/mutex.c:946 [inline]
__mutex_lock+0x139/0x1120 kernel/locking/mutex.c:1093
fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:759
bpf_fd_array_map_clear kernel/bpf/arraymap.c:809 [inline]
prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:988
process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294