INFO: task syz-executor.5:13709 can't die for more than 143 seconds.
task:syz-executor.5  state:R  running task     stack:25416 pid:13709 ppid:  9353 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6474
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 vprintk_emit+0x1c9/0x4f0 kernel/printk/printk.c:2249
 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
 _printk+0xba/0xed kernel/printk/printk.c:2269
 show_free_areas+0xbb6/0x1010 mm/page_alloc.c:6138
 show_mem+0x31/0x191 lib/show_mem.c:17
 warn_alloc_show_mem mm/page_alloc.c:4268 [inline]
 warn_alloc.cold+0x121/0x189 mm/page_alloc.c:4293
 __vmalloc_area_node mm/vmalloc.c:2976 [inline]
 __vmalloc_node_range+0xf2e/0x1130 mm/vmalloc.c:3157
 __vmalloc_node mm/vmalloc.c:3222 [inline]
 vzalloc+0x67/0x80 mm/vmalloc.c:3292
 xt_counters_alloc+0x4c/0x70 net/netfilter/x_tables.c:1379
 __do_replace+0x9a/0x870 net/ipv4/netfilter/ip_tables.c:1049
 do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline]
 do_ipt_set_ctl+0x891/0xb10 net/ipv4/netfilter/ip_tables.c:1630
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0x55a/0x38f0 net/ipv4/ip_sockglue.c:1444
 udp_setsockopt+0x76/0xc0 net/ipv4/udp.c:2789
 ipv6_setsockopt+0x161/0x180 net/ipv6/ipv6_sockglue.c:1014
 tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3688
 __sys_setsockopt+0x2db/0x6a0 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc90c052059
RSP: 002b:00007fc90af85168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc90c165100 RCX: 00007fc90c052059
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007fc90c0ac08d R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000700 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdcb49d89f R14: 00007fc90af85300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:13742 can't die for more than 143 seconds.
task:syz-executor.2  state:R  running task     stack:25592 pid:13742 ppid:  3620 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6474
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 vprintk_emit+0x1c9/0x4f0 kernel/printk/printk.c:2249
 vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
 _printk+0xba/0xed kernel/printk/printk.c:2269
 show_free_areas.cold+0x4aa/0x961 mm/page_alloc.c:6052
 show_mem+0x31/0x191 lib/show_mem.c:17
 warn_alloc_show_mem mm/page_alloc.c:4268 [inline]
 warn_alloc.cold+0x121/0x189 mm/page_alloc.c:4293
 __vmalloc_area_node mm/vmalloc.c:2976 [inline]
 __vmalloc_node_range+0xf2e/0x1130 mm/vmalloc.c:3157
 __vmalloc_node mm/vmalloc.c:3222 [inline]
 vzalloc+0x67/0x80 mm/vmalloc.c:3292
 xt_counters_alloc+0x4c/0x70 net/netfilter/x_tables.c:1379
 __do_replace+0x9a/0x870 net/ipv4/netfilter/ip_tables.c:1049
 do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline]
 do_ipt_set_ctl+0x891/0xb10 net/ipv4/netfilter/ip_tables.c:1630
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0x55a/0x38f0 net/ipv4/ip_sockglue.c:1444
 udp_setsockopt+0x76/0xc0 net/ipv4/udp.c:2789
 ipv6_setsockopt+0x161/0x180 net/ipv6/ipv6_sockglue.c:1014
 tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3688
 __sys_setsockopt+0x2db/0x6a0 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f460f020059
RSP: 002b:00007f460df74168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f460f133030 RCX: 00007f460f020059
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007f460f07a08d R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000700 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd4a67d67f R14: 00007f460df74300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8bb83960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6463
2 locks held by getty/3275:
 #0: ffff88814afe4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
2 locks held by kworker/0:1/10447:
2 locks held by kworker/u4:22/10803:

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