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BUG: using __this_cpu_read() in preemptible [ADDR] code: syzkaller5NUM/3329

Status: closed as invalid on 2017/12/12 13:35
First crash: 2320d, last: 2320d

Sample crash report:
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller527407/3329
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 3329 Comm: syzkaller527407 Not tainted 4.9.68-gfb66dc2 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d921f6d8 ffffffff81d90889 0000000000000001 ffffffff83c17800
 ffffffff83f42ec0 ffff8801cef3b000 0000000000000003 ffff8801d921f718
 ffffffff81df7854 ffff8801d921f730 ffffffff83f42ec0 dffffc0000000000
Call Trace:
 [<ffffffff81d90889>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d90889>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833f3f78>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137
 [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 net/xfrm/xfrm_state.c:2122
 [<ffffffff8356cb49>] pfkey_msg2xfrm_state net/key/af_key.c:1281 [inline]
 [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 net/key/af_key.c:1498
 [<ffffffff835645ee>] pfkey_process+0x61e/0x730 net/key/af_key.c:2826
 [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3670
 [<ffffffff82ecfb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1968
 [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2002
 [<ffffffff82ed38ad>] SYSC_sendmsg net/socket.c:2013 [inline]
 [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 net/socket.c:2009
 [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/12/11 19:58 https://android.googlesource.com/kernel/common android-4.9 fb66dc2a6e5e da131727 .config console log report syz C ci-android-49-kasan-gce
* Struck through repros no longer work on HEAD.