BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000000 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller427488/3802
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3802 Comm: syzkaller427488 Not tainted 4.9.82-g7ec482b #38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d9857668 ffffffff81d94fc9 0000000000000001 ffffffff83c18e00
 ffffffff83f45ba0 ffff8801d8790000 0000000000000003 ffff8801d98576a8
 ffffffff81dfc5c4 ffff8801d98576c0 ffffffff83f45ba0 dffffc0000000000
Call Trace:
 [<ffffffff81d94fc9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94fc9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc5c4>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc62c>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fe308>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fe308>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83514915>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833dc9e7>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833dd14a>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff83577599>] pfkey_msg2xfrm_state net/key/af_key.c:1289 [inline]
 [<ffffffff83577599>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1506
 [<ffffffff8356f08b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff835708e9>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82ed8baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed8baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82eda7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edc7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edc8dd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edc8dd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff81006505>] do_syscall_64+0x1a5/0x490 arch/x86/entry/common.c:282
 [<ffffffff838b4e7d>] entry_SYSCALL_64_after_swapgs+0x47/0xc5