INFO: task syz-executor.1:9780 can't die for more than 143 seconds.
task:syz-executor.1  state:R  running task     stack:27360 pid: 9780 ppid: 26224 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4955 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6236
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6408
 __cond_resched+0x13/0x20 kernel/sched/core.c:8121
 _cond_resched include/linux/sched.h:2033 [inline]
 __vunmap+0x79b/0xb70 mm/vmalloc.c:2622
 __vfree+0x3c/0xd0 mm/vmalloc.c:2669
 vfree+0x5a/0x90 mm/vmalloc.c:2700
 kvfree+0x2e/0x50 mm/util.c:618
 do_replace net/ipv6/netfilter/ip6_tables.c:1167 [inline]
 do_ip6t_set_ctl+0x58e/0xb90 net/ipv6/netfilter/ip6_tables.c:1639
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x122/0x180 net/ipv6/ipv6_sockglue.c:1008
 tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3631
 __sys_setsockopt+0x2db/0x610 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184
 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: 0033:0x7f0f9d77d709
RSP: 002b:00007f0f9acf4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f0f9d881f60 RCX: 00007f0f9d77d709
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000004
RBP: 00007f0f9d7d7cb4 R08: 00000000000003d8 R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6e43774f R14: 00007f0f9acf4300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.1:9781 can't die for more than 145 seconds.
task:syz-executor.1  state:R  running task     stack:27800 pid: 9781 ppid:  9780 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4955 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6236
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6408
 __cond_resched+0x13/0x20 kernel/sched/core.c:8121
 _cond_resched include/linux/sched.h:2033 [inline]
 __vunmap+0x79b/0xb70 mm/vmalloc.c:2622
 __vfree+0x3c/0xd0 mm/vmalloc.c:2669
 vfree+0x5a/0x90 mm/vmalloc.c:2700
 kvfree+0x2e/0x50 mm/util.c:618
 do_replace net/ipv6/netfilter/ip6_tables.c:1167 [inline]
 do_ip6t_set_ctl+0x58e/0xb90 net/ipv6/netfilter/ip6_tables.c:1639
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x122/0x180 net/ipv6/ipv6_sockglue.c:1008
 tcp_setsockopt+0x136/0x2520 net/ipv4/tcp.c:3631
 __sys_setsockopt+0x2db/0x610 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184
 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: 0033:0x7f0f9d77d709
RSP: 002b:00007f0f9acf4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f0f9d881f60 RCX: 00007f0f9d77d709
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000005
RBP: 00007f0f9d7d7cb4 R08: 00000000000003d8 R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6e43774f R14: 00007f0f9acf4300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8b9808a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
1 lock held by in:imklog/6229:
1 lock held by syz-executor.1/9780:

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