BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95860
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc958a0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95420
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95320
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc956c0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95780
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95700
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc956e0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95740
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000000 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801cfc95760
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
check_preemption_disabled: 1048 callbacks suppressed
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fcc0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fca0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fc80
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fc40
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fb40
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fbc0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fba0
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fb80
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fb60
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller935672/3757
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3757 Comm: syzkaller935672 Not tainted 4.9.92-g4fb542f #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801bf96f638 ffffffff81d9c509 0000000000000001 ffffffff83c19e20
 ffffffff83f49320 ffff8801bb843000 0000000000000003 ffff8801bf96f678
 ffffffff81e51fb0 ffff8801bf96f690 ffffffff83f49320 ffff8801d727fb20
Call Trace:
 [<ffffffff81d9c509>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d9c509>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81e51fb0>] check_preemption_disabled.cold.0+0x7f/0x8b lib/smp_processor_id.c:46
 [<ffffffff81e0407c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff83412b36>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff83412b36>] ipcomp_init_state+0x186/0x920 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff8337ffe3>] ipcomp4_init_state+0xb3/0x7c0 net/ipv4/ipcomp.c:137
 [<ffffffff833f1d69>] __xfrm_init_state+0x3f9/0xb50 net/xfrm/xfrm_state.c:2096
 [<ffffffff833f24da>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8358c029>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff8358c029>] pfkey_add+0x1ea9/0x3240 net/key/af_key.c:1506
 [<ffffffff83582e11>] pfkey_process+0x671/0x740 net/key/af_key.c:2834
 [<ffffffff83584636>] pfkey_sendmsg+0x346/0xae0 net/key/af_key.c:3678
 [<ffffffff82ef3fcc>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ef3fcc>] sock_sendmsg+0xcc/0x110 net/socket.c:645
 [<ffffffff82ef5a6c>] ___sys_sendmsg+0x6fc/0x840 net/socket.c:1969
 [<ffffffff82ef7ad9>] __sys_sendmsg+0xd9/0x190 net/socket.c:2003
 [<ffffffff82ef7bbd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ef7bbd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff838d58d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb