================================ WARNING: inconsistent lock state 4.15.0-rc9+ #283 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor5/3728 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&est->lock)->rlock){+.?.}, at: [<000000006bbbb53f>] spin_lock include/linux/spinlock.h:310 [inline] (&(&est->lock)->rlock){+.?.}, at: [<000000006bbbb53f>] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 gen_new_estimator+0x317/0x770 net/core/gen_estimator.c:162 xt_rateest_tg_checkentry+0x487/0xaa0 net/netfilter/xt_RATEEST.c:135 xt_check_target+0x22c/0x7d0 net/netfilter/x_tables.c:845 check_target net/ipv6/netfilter/ip6_tables.c:538 [inline] find_check_entry.isra.7+0x935/0xcf0 net/ipv6/netfilter/ip6_tables.c:580 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:749 do_replace net/ipv6/netfilter/ip6_tables.c:1167 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1693 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1452 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x29/0xa0 irq event stamp: 2321972 hardirqs last enabled at (2321972): [<000000006bfe765d>] restore_regs_and_return_to_kernel+0x0/0x21 hardirqs last disabled at (2321971): [<000000002a02362f>] apic_timer_interrupt+0xa4/0xb0 arch/x86/entry/entry_64.S:937 softirqs last enabled at (2321630): [<0000000079bd7620>] tcp_close+0x92a/0x1190 net/ipv4/tcp.c:2307 softirqs last disabled at (2321967): [<00000000318c2ff2>] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (2321967): [<00000000318c2ff2>] irq_exit+0x1cc/0x200 kernel/softirq.c:405 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&est->lock)->rlock); lock(&(&est->lock)->rlock); *** DEADLOCK *** 4 locks held by syz-executor5/3728: #0: (&dup_mmap_sem){.+.+}, at: [<00000000d7da5280>] dup_mmap kernel/fork.c:607 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<00000000d7da5280>] dup_mm kernel/fork.c:1196 [inline] #0: (&dup_mmap_sem){.+.+}, at: [<00000000d7da5280>] copy_mm+0x3c6/0x131b kernel/fork.c:1250 #1: (&mm->mmap_sem){++++}, at: [<00000000dd035122>] dup_mmap kernel/fork.c:608 [inline] #1: (&mm->mmap_sem){++++}, at: [<00000000dd035122>] dup_mm kernel/fork.c:1196 [inline] #1: (&mm->mmap_sem){++++}, at: [<00000000dd035122>] copy_mm+0x3e2/0x131b kernel/fork.c:1250 #2: (&mm->mmap_sem/1){+.+.}, at: [<000000000ee8b4ef>] dup_mmap kernel/fork.c:617 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<000000000ee8b4ef>] dup_mm kernel/fork.c:1196 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [<000000000ee8b4ef>] copy_mm+0x43f/0x131b kernel/fork.c:1250 #3: ((&est->timer)){+.-.}, at: [<00000000124edaf3>] lockdep_copy_map include/linux/lockdep.h:178 [inline] #3: ((&est->timer)){+.-.}, at: [<00000000124edaf3>] call_timer_fn+0x1c6/0x820 kernel/time/timer.c:1308 stack backtrace: CPU: 0 PID: 3728 Comm: syz-executor5 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_usage_bug+0x377/0x38c kernel/locking/lockdep.c:2537 valid_state kernel/locking/lockdep.c:2550 [inline] mark_lock_irq kernel/locking/lockdep.c:2744 [inline] mark_lock+0xf61/0x1430 kernel/locking/lockdep.c:3142 mark_irqflags kernel/locking/lockdep.c:3020 [inline] __lock_acquire+0x173a/0x3e00 kernel/locking/lockdep.c:3383 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] est_fetch_counters+0x4f/0x150 net/core/gen_estimator.c:70 est_timer+0x97/0x7c0 net/core/gen_estimator.c:85 call_timer_fn+0x228/0x820 kernel/time/timer.c:1318 expire_timers kernel/time/timer.c:1355 [inline] __run_timers+0x7ee/0xb70 kernel/time/timer.c:1658 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1684 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:541 [inline] smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:937 RIP: 0010:debug_lockdep_rcu_enabled.part.1+0x2a/0x60 kernel/rcu/update.c:301 RSP: 0018:ffff8801a7eaf038 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff11 RAX: dffffc0000000000 RBX: ffff8801d8b68340 RCX: ffffffff81a73823 RDX: 0000000000000000 RSI: ffffffff86b41580 RDI: ffff8801d8b68bb4 RBP: ffff8801a7eaf040 R08: 0000000000000000 R09: 1ffff10034fd5e03 R10: ffff8801a7eaefe0 R11: 0000000000000003 R12: 0000000000000000 R13: ffffffff867ec3a4 R14: 0000000000000bf1 R15: 00000000014000c0 debug_lockdep_rcu_enabled+0x77/0x90 kernel/rcu/update.c:300 ___might_sleep+0x74/0x470 kernel/sched/core.c:6025 __might_sleep+0x95/0x190 kernel/sched/core.c:6013 cache_alloc_debugcheck_before mm/slab.c:3057 [inline] slab_alloc mm/slab.c:3372 [inline] kmem_cache_alloc+0x2bf/0x760 mm/slab.c:3542 dup_mmap kernel/fork.c:653 [inline] dup_mm kernel/fork.c:1196 [inline] copy_mm+0x8d7/0x131b kernel/fork.c:1250 copy_process.part.38+0x1ee9/0x4b20 kernel/fork.c:1752 copy_process kernel/fork.c:1565 [inline] _do_fork+0x1f7/0xfe0 kernel/fork.c:2044 SYSC_clone kernel/fork.c:2154 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2148 do_syscall_64+0x273/0x920 arch/x86/entry/common.c:285 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x45198a RSP: 002b:0000000000a2f550 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000a2f550 RCX: 000000000045198a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000a2f590 R08: 0000000000000001 R09: 00000000029a2940 R10: 00000000029a2c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000010 kvm: apic: phys broadcast and lowest prio FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21482 Comm: syz-executor5 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3542 mpol_new+0x144/0x2e0 mm/mempolicy.c:276 do_set_mempolicy+0x77/0x2e0 mm/mempolicy.c:773 SYSC_set_mempolicy mm/mempolicy.c:1362 [inline] SyS_set_mempolicy+0x10e/0x120 mm/mempolicy.c:1346 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007ffb87036c58 EFLAGS: 00000212 ORIG_RAX: 00000000000000ee RAX: ffffffffffffffda RBX: 00007ffb87036aa0 RCX: 0000000000453299 RDX: 0000000000000001 RSI: 0000000020047ff8 RDI: 0000000000000001 RBP: 00007ffb87036a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007ffb87036bc8 R14: 00000000004b8096 R15: 0000000000000000 sg_write: data in/out 33590522/1481 bytes for SCSI command 0x67-- guessing data in; program syz-executor4 not setting count and/or reply_len properly sg_write: data in/out 33590522/1481 bytes for SCSI command 0x67-- guessing data in; program syz-executor4 not setting count and/or reply_len properly FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 22025 Comm: syz-executor7 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3289 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3632 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1147 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1839 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xca/0x110 net/socket.c:648 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2028 __sys_sendmsg+0xe5/0x210 net/socket.c:2062 SYSC_sendmsg net/socket.c:2073 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2069 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007f7436c76c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7436c76aa0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 0000000020dfe000 RDI: 0000000000000013 RBP: 00007f7436c76a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007f7436c76bc8 R14: 00000000004b8096 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 22054 Comm: syz-executor0 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3289 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3632 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1147 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1839 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xca/0x110 net/socket.c:648 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2028 __sys_sendmsg+0xe5/0x210 net/socket.c:2062 SYSC_sendmsg net/socket.c:2073 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2069 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fde263f1c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fde263f1aa0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 0000000020dfe000 RDI: 0000000000000013 RBP: 00007fde263f1a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007fde263f1bc8 R14: 00000000004b8096 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 22088 Comm: syz-executor0 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3289 [inline] kmem_cache_alloc_node_trace+0x5a/0x750 mm/slab.c:3651 __do_kmalloc_node mm/slab.c:3671 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3686 __kmalloc_reserve.isra.39+0x41/0xd0 net/core/skbuff.c:137 __alloc_skb+0x13b/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1147 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1839 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xca/0x110 net/socket.c:648 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2028 __sys_sendmsg+0xe5/0x210 net/socket.c:2062 SYSC_sendmsg net/socket.c:2073 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2069 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fde263f1c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fde263f1aa0 RCX: 0000000000453299 RDX: 0000000000000000 RSI: 0000000020dfe000 RDI: 0000000000000013 RBP: 00007fde263f1a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007fde263f1bc8 R14: 00000000004b8096 R15: 0000000000000000 ip_tunnel: non-ECT from 172.20.0.0 with TOS=0x1 ip_tunnel: non-ECT from 172.20.0.0 with TOS=0x1 RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 255.255.255.255, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 255.255.255.255, load rds_tcp or rds_rdma? FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 23274 Comm: syz-executor6 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] __do_kmalloc mm/slab.c:3706 [inline] __kmalloc+0x63/0x760 mm/slab.c:3717 kmalloc include/linux/slab.h:504 [inline] sock_kmalloc+0x112/0x190 net/core/sock.c:1979 ipv6_sock_mc_join+0x506/0xa80 net/ipv6/mcast.c:158 do_ipv6_setsockopt.isra.8+0x34f7/0x39d0 net/ipv6/ipv6_sockglue.c:721 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 sctp_setsockopt+0x2a0/0x5de0 net/sctp/socket.c:4074 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007f6b1d657c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f6b1d657aa0 RCX: 0000000000453299 RDX: 000000000000002e RSI: 0000000000000029 RDI: 0000000000000013 RBP: 00007f6b1d657a90 R08: 0000000000000108 R09: 0000000000000000 R10: 00000000202aaef8 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007f6b1d657bc8 R14: 00000000004b8096 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 23295 Comm: syz-executor6 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] __do_kmalloc mm/slab.c:3706 [inline] __kmalloc+0x63/0x760 mm/slab.c:3717 kmalloc include/linux/slab.h:504 [inline] sock_kmalloc+0x112/0x190 net/core/sock.c:1979 ip6_mc_source+0x128d/0x1750 net/ipv6/mcast.c:413 do_ipv6_setsockopt.isra.8+0x3219/0x39d0 net/ipv6/ipv6_sockglue.c:732 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 sctp_setsockopt+0x2a0/0x5de0 net/sctp/socket.c:4074 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968 SYSC_setsockopt net/socket.c:1831 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1810 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007f6b1d657c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f6b1d657aa0 RCX: 0000000000453299 RDX: 000000000000002e RSI: 0000000000000029 RDI: 0000000000000013 RBP: 00007f6b1d657a90 R08: 0000000000000108 R09: 0000000000000000 R10: 00000000202aaef8 R11: 0000000000000212 R12: 00000000004b8096 R13: 00007f6b1d657bc8 R14: 00000000004b8096 R15: 0000000000000000 kauditd_printk_skb: 67 callbacks suppressed audit: type=1400 audit(1517131061.974:1057): avc: denied { getattr } for pid=23383 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 23583 Comm: syz-executor4 Not tainted 4.15.0-rc9+ #283 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3368 [inline] __do_kmalloc mm/slab.c:3706 [inline] __kmalloc+0x63/0x760 mm/slab.c:3717 kmalloc include/linux/slab.h:504 [inline] sock_kmalloc+0x112/0x190 net/core/sock.c:1979 ipv6_sock_mc_join+0x506/0xa80 net/ipv6/mcast.c:158 do_ipv6_setsockopt.isra.8+0x34f7/0x39d0 net/ipv6/ipv6_sockglue.c:721 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 sctp_setsockopt+0x2a0/0x5de0 net/sctp/socket.c:4074