BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor0/6111 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 0 PID: 6111 Comm: syz-executor0 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801abbf7478 ffffffff81d94b69 0000000000000000 ffffffff83c18800 ffffffff83f454c0 ffff8801abb33000 0000000000000003 ffff8801abbf74b8 ffffffff81dfc144[ 38.997828] syz-executor4: vmalloc: allocation failure: 15157949456 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46 syz-executor7 (6132) used greatest stack depth: 23536 bytes left [] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 [] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline] [] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363 [] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165 [] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096 [] xfrm_state_construct net/xfrm/xfrm_user.c:590 [inline] [] xfrm_add_sa+0x1916/0x2e40 net/xfrm/xfrm_user.c:639 [] xfrm_user_rcv_msg+0x413/0x6a0 net/xfrm/xfrm_user.c:2525 [] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2351 [] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533 [] netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline] [] netlink_unicast+0x511/0x750 net/netlink/af_netlink.c:1301 [] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847 [] sock_sendmsg_nosec net/socket.c:635 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:645 [] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969 [] __sys_sendmsg+0xd6/0x190 net/socket.c:2003 [] SYSC_sendmsg net/socket.c:2014 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2010 [] entry_SYSCALL_64_fastpath+0x29/0xe8 CPU: 1 PID: 6128 Comm: syz-executor4 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801b0fcf880 ffffffff81d94b69 1ffff100361f9f13 ffff8801b0fb8000 ffffffff83ab8ea0 0000000000000001 0000000000400000 ffff8801b0fcf990 ffffffff81451ca2 024000c200000003 0000000041b58ab3 ffffffff84195215 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] warn_alloc+0x212/0x240 mm/page_alloc.c:3056 [] __vmalloc_node_range+0x3f5/0x5f0 mm/vmalloc.c:1722 [] __vmalloc_node mm/vmalloc.c:1744 [inline] [] __vmalloc_node_flags mm/vmalloc.c:1758 [inline] [] vmalloc+0x5b/0x70 mm/vmalloc.c:1773 [] xt_alloc_entry_offsets+0x41/0x60 net/netfilter/x_tables.c:722 [] translate_table+0x2da/0x1cd0 net/ipv4/netfilter/arp_tables.c:549 [] ? 0xffffffff810002b8 [] do_replace net/ipv4/netfilter/arp_tables.c:986 [inline] [] do_arpt_set_ctl+0x2b7/0x650 net/ipv4/netfilter/arp_tables.c:1465 [] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 [] ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1248 [] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2740 [] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2706 [] SYSC_setsockopt net/socket.c:1772 [inline] [] SyS_setsockopt+0x160/0x250 net/socket.c:1751 [] entry_SYSCALL_64_fastpath+0x29/0xe8 Mem-Info: active_anon:53502 inactive_anon:44 isolated_anon:0 active_file:3501 inactive_file:8247 isolated_file:0 unevictable:0 dirty:115 writeback:0 unstable:0 slab_reclaimable:5287 slab_unreclaimable:60377 mapped:24060 shmem:51 pagetables:668 bounce:0 free:1474964 free_pcp:523 free_cma:0 Node 0 active_anon:213940kB inactive_anon:176kB active_file:14004kB inactive_file:33000kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:96200kB dirty:476kB writeback:0kB shmem:204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 90112kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2908 6410 6410 DMA32 free:2979960kB min:30592kB low:38240kB high:45888kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2980720kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:760kB local_pcp:712kB free_cma:0kB lowmem_reserve[]: 0 0 3501 3501 Normal free:2905036kB min:36824kB low:46028kB high:55232kB active_anon:213940kB inactive_anon:176kB active_file:14004kB inactive_file:33000kB unevictable:0kB writepending:476kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:20972kB slab_unreclaimable:240928kB kernel_stack:5376kB pagetables:2596kB bounce:0kB free_pcp:1276kB local_pcp:648kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB DMA32: 2*4kB (M) 2*8kB (M) 2*16kB (M) 2*32kB (M) 2*64kB (M) 3*128kB (M) 2*256kB (M) 4*512kB (M) 1*1024kB (M) 1*2048kB (M) 726*4096kB (M) = 2979960kB Normal: 1555*4kB (UME) 288*8kB (UME) 214*16kB (UME) 74*32kB (UME) 50*64kB (UME) 9*128kB (UME) 7*256kB (ME) 6*512kB (UME) 34*1024kB (ME) 6*2048kB (UME) 692*4096kB (M) = 2905068kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11802 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 320509 pages reserved binder: 6223:6225 transaction failed 29201/-28, size 7425698754467420151-39376272579952564 line 3127 binder_alloc: binder_alloc_mmap_handler: 6223 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 6223:6235 ioctl 40046207 0 returned -16 binder_alloc: 6223: binder_alloc_buf, no vma binder: 6223:6237 transaction failed 29189/-3, size 7425698754467420151-39376272579952564 line 3127 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6344 Comm: syz-executor7 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ab6275d0 ffffffff81d94b69 ffff8801ab6278b0 0000000000000000 ffff8801c9d0d490 ffff8801ab6277a0 ffff8801c9d0d380 ffff8801ab6277c8 ffffffff816624ba 0000000000007be1 ffff8801ab6120f0 ffff8801ab6120a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] vfs_ioctl fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x1aa/0x1140 fs/ioctl.c:679 [] SYSC_ioctl fs/ioctl.c:694 [inline] [] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x29/0xe8 device gre0 entered promiscuous mode audit: type=1400 audit(1517991731.576:27): avc: denied { ioctl } for pid=6444 comm="syz-executor0" path="socket:[15028]" dev="sockfs" ino=15028 ioctlcmd=0x8918 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_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6417 Comm: syz-executor2 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ad4174e0 ffffffff81d94b69 ffff8801ad4177c0 0000000000000000 ffff8801c9d0d610 ffff8801ad4176b0 ffff8801c9d0d500 ffff8801ad4176d8 ffffffff816624ba 0000000000007f16 ffff8801ab5ed168 ffff8801ab5ed0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] generic_perform_write+0x1dc/0x500 mm/filemap.c:2731 [] __generic_file_write_iter+0x348/0x570 mm/filemap.c:2866 [] generic_file_write_iter+0x2d5/0x600 mm/filemap.c:2894 [] new_sync_write fs/read_write.c:499 [inline] [] __vfs_write+0x4bf/0x680 fs/read_write.c:512 [] vfs_write+0x189/0x530 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x29/0xe8 audit: type=1400 audit(1517991731.626:28): avc: denied { write } for pid=6444 comm="syz-executor0" 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 mmap: syz-executor7 (6483) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. binder: 6635:6645 ERROR: BC_REGISTER_LOOPER called without request binder: BINDER_SET_CONTEXT_MGR already set binder: 6635:6666 ioctl 40046207 0 returned -16 binder: 6635:6645 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 6635: binder_alloc_buf, no vma binder: 6635:6666 transaction failed 29189/-3, size 0-0 line 3127 binder: 6635:6645 got reply transaction with no transaction stack binder: 6635:6645 transaction failed 29201/-71, size 24-8 line 2920 binder: 6635:6688 IncRefs 0 refcount change on invalid ref 1 ret -22 handle_userfault: 10 callbacks suppressed FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6673 Comm: syz-executor5 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d7d8f930 ffffffff81d94b69 ffff8801d7d8fc10 0000000000000000 ffff8801c9d0df10 ffff8801d7d8fb00 ffff8801c9d0de00 ffff8801d7d8fb28 ffffffff816624ba 0000000000007be1 ffff8801d6e0a0f0 ffff8801d6e0a0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] entry_SYSCALL_64_fastpath+0x29/0xe8 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6659 Comm: syz-executor5 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d7b278f0 ffffffff81d94b69 ffff8801d7b27bd0 0000000000000000 ffff8801c9d0df10 ffff8801d7b27ac0 ffff8801c9d0de00 ffff8801d7b27ae8 ffffffff816624ba 0000000000007be1 ffff8801d6ced0f0 ffff8801d6ced0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] SyS_rt_sigqueueinfo+0x24/0x30 kernel/signal.c:2969 [] entry_SYSCALL_64_fastpath+0x29/0xe8 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6673 Comm: syz-executor5 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d7d8f930 ffffffff81d94b69 ffff8801d7d8fc10 0000000000000000 ffff8801b93c0110 ffff8801d7d8fb00 ffff8801b93c0000 ffff8801d7d8fb28 ffffffff816624ba 0000000000007be1 ffff8801d6e0a0f0 ffff8801d6e0a0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] entry_SYSCALL_64_fastpath+0x29/0xe8 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 6659 Comm: syz-executor5 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d7b278f0 ffffffff81d94b69 ffff8801d7b27bd0 0000000000000000 ffff8801b93c0110 ffff8801d7b27ac0 ffff8801b93c0000 ffff8801d7b27ae8 ffffffff816624ba 0000000000007be1 ffff8801d6ced0f0 ffff8801d6ced0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] SyS_rt_sigqueueinfo+0x24/0x30 kernel/signal.c:2969 [] entry_SYSCALL_64_fastpath+0x29/0xe8 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 19, process died. device lo entered promiscuous mode device lo left promiscuous mode binder: release 6919:6921 transaction 25 out, still active binder: undelivered TRANSACTION_COMPLETE binder: 6919:6921 ERROR: BC_REGISTER_LOOPER called without request cgroup: cgroup2: unknown option "" binder_alloc: binder_alloc_mmap_handler: 6919 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 6919:6921 ioctl 40046207 0 returned -16 binder_alloc: 6919: binder_alloc_buf, no vma binder: 6919:6942 transaction failed 29189/-3, size 0-0 line 3127 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 6919:6921 transaction 25 in, still active binder: send failed reply for transaction 25, target dead binder: 7075:7076 got transaction with invalid offsets ptr binder: 7075:7076 transaction failed 29201/-14, size 0-4096 line 3155 binder: undelivered TRANSACTION_ERROR: 29201 binder: 7075:7076 got transaction with invalid offsets ptr binder: 7075:7076 transaction failed 29201/-14, size 0-4096 line 3155 binder: undelivered TRANSACTION_ERROR: 29201 device eql entered promiscuous mode device syz4 entered promiscuous mode device syz4 left promiscuous mode device syz4 entered promiscuous mode device syz4 left promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7241 Comm: syz-executor6 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801b252f610 ffffffff81d94b69 ffff8801b252f8f0 0000000000000000 ffff8801c1271190 ffff8801b252f7e0 ffff8801c1271080 ffff8801b252f808 ffffffff816624ba 0000000000007be1 ffff8801d44a38f0 ffff8801d44a38a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] import_iovec+0xc8/0x3c0 lib/iov_iter.c:1243 [] do_readv_writev+0xd2/0x750 fs/read_write.c:850 [] vfs_readv+0x84/0xc0 fs/read_write.c:898 [] do_readv+0xe6/0x250 fs/read_write.c:924 [] SYSC_readv fs/read_write.c:1011 [inline] [] SyS_readv+0x27/0x30 fs/read_write.c:1008 [] entry_SYSCALL_64_fastpath+0x29/0xe8 IPv4: Oversized IP packet from 127.0.0.1 device gre0 entered promiscuous mode device syz4 entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7403 Comm: syz-executor3 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d353f8a0 ffffffff81d94b69 ffff8801d353fb80 0000000000000000 ffff8801c1271c10 ffff8801d353fa70 ffff8801c1271b00 ffff8801d353fa98 ffffffff816624ba 0000000000007be1 ffff8801d06420f0 ffff8801d06420a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] entry_SYSCALL_64_fastpath+0x29/0xe8 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 7419 Comm: syz-executor3 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d050f8a0 ffffffff81d94b69 ffff8801d050fb80 0000000000000000 ffff8801c1271d90 ffff8801d050fa70 ffff8801c1271c80 ffff8801d050fa98 ffffffff816624ba 0000000000007be1 ffff8801d3e408f0 ffff8801d3e408a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] entry_SYSCALL_64_fastpath+0x29/0xe8 device syz4 left promiscuous mode audit: type=1400 audit(1517991737.976:32): avc: denied { create } for pid=7480 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_scsitransport_socket permissive=1 audit: type=1400 audit(1517991737.976:33): avc: denied { dyntransition } for pid=7493 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0,c1 tclass=process permissive=1 TCP: request_sock_TCP: Possible SYN flooding on port 20006. 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Check SNMP counters. binder_alloc: binder_alloc_mmap_handler: 7525 2011a000-2051a000 already mapped failed -16 syz-executor1 (7521) used greatest stack depth: 22576 bytes left keychord: invalid keycode count 0 keychord: invalid keycode count 0 FAULT_FLAG_ALLOW_RETRY missing 30 audit: type=1400 audit(1517991738.816:34): avc: denied { lock } for pid=7764 comm="syz-executor4" path="socket:[16937]" dev="sockfs" ino=16937 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 CPU: 0 PID: 7757 Comm: syz-executor3 Not tainted 4.9.80-g550c01d #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801b276f930 ffffffff81d94b69 ffff8801b276fc10 0000000000000000 ffff8801b93c1f10 ffff8801b276fb00 ffff8801b93c1e00 ffff8801b276fb28 ffffffff816624ba 0000000000007be1 ffff8801d02ed0f0 ffff8801d02ed0a0 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323 [] do_anonymous_page mm/memory.c:2747 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614 [] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055 [] entry_SYSCALL_64_fastpath+0x29/0xe8 netlink: 215 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 215 bytes leftover after parsing attributes in process `syz-executor3'.