syzbot


BUG: using __this_cpu_read() in preemptible code in warn_alloc

Status: auto-closed as invalid on 2019/02/22 13:29
First crash: 2318d, last: 2259d

Sample crash report:
syz-executor2: vmalloc: allocation failure: 17179344896 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM)
CPU: 1 PID: 8168 Comm: syz-executor2 Not tainted 4.9.80-g20c8a00 #30
check_preemption_disabled: 1 callbacks suppressed
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor3/8200
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d5347880 ffffffff81d94b69 1ffff1003aa68f13 ffff8801ba5b1800
 ffffffff83ab8ea0 0000000000000001 0000000000400000 ffff8801d5347990
 ffffffff81451ca2 024000c200000003 0000000041b58ab3 ffffffff84195215
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81451ca2>] warn_alloc+0x212/0x240 mm/page_alloc.c:3056
 [<ffffffff814ffc75>] __vmalloc_node_range+0x3f5/0x5f0 mm/vmalloc.c:1722
 [<ffffffff814fff3b>] __vmalloc_node mm/vmalloc.c:1744 [inline]
 [<ffffffff814fff3b>] __vmalloc_node_flags mm/vmalloc.c:1758 [inline]
 [<ffffffff814fff3b>] vmalloc+0x5b/0x70 mm/vmalloc.c:1773
 [<ffffffff83141131>] xt_alloc_entry_offsets+0x41/0x60 net/netfilter/x_tables.c:722
 [<ffffffff8351f9da>] translate_table+0x21a/0x1e80 net/ipv6/netfilter/ip6_tables.c:730
 [<ffffffff810002b8>] ? 0xffffffff810002b8
 [<ffffffff835238be>] do_replace net/ipv6/netfilter/ip6_tables.c:1182 [inline]
 [<ffffffff835238be>] do_ip6t_set_ctl+0x2be/0x470 net/ipv6/netfilter/ip6_tables.c:1708
 [<ffffffff830a1ca7>] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]
 [<ffffffff830a1ca7>] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114
 [<ffffffff8347b085>] ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:912
 [<ffffffff83231892>] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2740
 [<ffffffff82ede275>] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2706
 [<ffffffff82edb230>] SYSC_setsockopt net/socket.c:1772 [inline]
 [<ffffffff82edb230>] SyS_setsockopt+0x160/0x250 net/socket.c:1751
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
CPU: 0 PID: 8200 Comm: syz-executor3 Not tainted 4.9.80-g20c8a00 #30
binder: BINDER_SET_CONTEXT_MGR already set
binder: 8165:8173 ioctl 40046207 0 returned -16
binder_alloc: 8165: binder_alloc_buf, no vma
binder: 8165:8188 transaction failed 29189/-3, size 72-16 line 3127
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c95cf478 ffffffff81d94b69 0000000000000000 ffffffff83c18800
 ffffffff83f454c0 ffff8801b6a6e000 0000000000000003 ffff8801c95cf4b8
 ffffffff81dfc144 ffff8801c95cf4d0 ffffffff83f454c0 dffffc0000000000
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81dfc144>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81dfc1ac>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff833fce38>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff833fce38>] ipcomp_init_state+0x188/0x930 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff83512f45>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff833db527>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2096
 [<ffffffff833fa686>] xfrm_state_construct net/xfrm/xfrm_user.c:590 [inline]
 [<ffffffff833fa686>] xfrm_add_sa+0x1916/0x2e40 net/xfrm/xfrm_user.c:639
 [<ffffffff833eacd3>] xfrm_user_rcv_msg+0x413/0x6a0 net/xfrm/xfrm_user.c:2525
 [<ffffffff8309537e>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2351
 [<ffffffff833e71cf>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff83093f01>] netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline]
 [<ffffffff83093f01>] netlink_unicast+0x511/0x750 net/netlink/af_netlink.c:1301
 [<ffffffff83094a28>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82ed7baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edb8bd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29201
Mem-Info:
active_anon:57308 inactive_anon:45 isolated_anon:0
 active_file:3502 inactive_file:8304 isolated_file:0
 unevictable:0 dirty:222 writeback:0 unstable:0
 slab_reclaimable:6338 slab_unreclaimable:60213
 mapped:24057 shmem:51 pagetables:701 bounce:0
 free:1471178 free_pcp:368 free_cma:0
Node 0 active_anon:239368kB inactive_anon:180kB active_file:14008kB inactive_file:33228kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:96304kB dirty:900kB writeback:0kB shmem:204kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 124928kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
IPVS: Creating netns size=2536 id=12
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[]:[   51.015936] IPVS: Creating netns size=2536 id=13
 0 2908 6410 6410
lowmem_reserve[]: 0 0 3501 3501
Normal free:2899920kB min:36824kB low:46028kB high:55232kB active_anon:220420kB inactive_anon:180kB active_file:14008kB inactive_file:33228kB unevictable:0kB writepending:900kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:25276kB slab_unreclaimable:241264kB kernel_stack:5632kB pagetables:2452kB bounce:0kB free_pcp:1304kB 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: 962*4kB (UME) 1058*8kB (UME) 225*16kB (UME) 53*32kB (UME) 53*64kB (UM) 14*128kB (UME) 5*256kB (UME) 5*512kB (M) 6*1024kB (M) 8*2048kB (UME) 696*4096kB (M) = 2899976kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
11860 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
IPv4: Oversized IP packet from 127.0.0.1
binder: 8413:8418 ERROR: BC_REGISTER_LOOPER called without request
keychord: Insufficient bytes present for keycount 0
binder: unexpected work type, 4, not freed
binder: undelivered TRANSACTION_COMPLETE
keychord: Insufficient bytes present for keycount 0
binder: invalid inc weak node for 33
loop_reread_partitions: partition scan of loop0 (/Ho^&$UZ|Z>e5Uosn&3/C8Z\E0z) failed (rc=-13)
binder: 8413:8418 IncRefs 0 refcount change on invalid ref 1 ret -22
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered transaction 32, process died.
binder: 8413:8427 ERROR: BC_REGISTER_LOOPER called without request
binder: BINDER_SET_CONTEXT_MGR already set
binder: 8449:8452 ioctl 40046207 0 returned -16
binder: 8413:8418 got reply transaction with bad transaction stack, transaction 36 has target 8413:0
binder: 8413:8418 transaction failed 29201/-71, size 24-8 line 2935
binder: 8449:8452 BC_CLEAR_DEATH_NOTIFICATION death notification not active
binder: release 8413:8418 transaction 36 out, still active
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: send failed reply for transaction 36, target dead
TCP: request_sock_TCPv6: Possible SYN flooding on port 20026. Sending cookies.  Check SNMP counters.
binder: 8513:8522 ERROR: BC_REGISTER_LOOPER called without request
audit: type=1400 audit(1518191257.787:33): avc:  denied  { getattr } for  pid=8518 comm="syz-executor4" path="socket:[19747]" dev="sockfs" ino=19747 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
binder: BINDER_SET_CONTEXT_MGR already set
binder: 8513:8530 ioctl 40046207 0 returned -16
binder: 8513:8522 ERROR: BC_REGISTER_LOOPER called without request
binder: 8513:8530 got reply transaction with no transaction stack
binder: 8513:8522 unknown command 76
binder: 8513:8522 ioctl c0306201 2000a000 returned -22
binder: 8513:8530 transaction failed 29201/-71, size 24-8 line 2920
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered transaction 43, process died.
binder: undelivered TRANSACTION_ERROR: 29201
keychord: Insufficient bytes present for header 3
binder: 8668:8669 ERROR: BC_REGISTER_LOOPER called without request
binder: 8673:8676 BC_REQUEST_DEATH_NOTIFICATION invalid ref 131072
devpts: called with bogus options
binder: 8668:8669 ioctl c0306201 20008fd0 returned -14
binder: 8673:8687 BC_DEAD_BINDER_DONE 0000000000000003 not found
binder: 8673:8689 tried to acquire reference to desc 0, got 1 instead
binder: 8673:8689 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0
binder: 8673:8687 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0
binder: 8673:8687 BC_REQUEST_DEATH_NOTIFICATION invalid ref 131072
binder: 8673:8689 BC_DEAD_BINDER_DONE 0000000000000003 not found
binder: 8668:8684 ioctl c0306201 2000afd0 returned -14
binder: undelivered death notification, 0000000000000000
binder_alloc: binder_alloc_mmap_handler: 8668 20000000-20002000 already mapped failed -16
binder: BINDER_SET_CONTEXT_MGR already set
binder: 8668:8684 ioctl 40046207 0 returned -16
binder: 8668:8684 ERROR: BC_REGISTER_LOOPER called without request
binder: 8668:8684 ioctl c0306201 20008fd0 returned -14
binder_alloc: 8668: binder_alloc_buf, no vma
binder: 8668:8694 transaction failed 29189/-3, size 0-0 line 3127
binder: release 8668:8684 transaction 48 out, still active
binder: send failed reply for transaction 48, target dead
TCP: request_sock_TCP: Possible SYN flooding on port 20026. Sending cookies.  Check SNMP counters.
audit: type=1400 audit(1518191259.327:34): avc:  denied  { attach_queue } for  pid=8906 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=tun_socket permissive=1
binder: 9069:9074 ERROR: BC_REGISTER_LOOPER called without request
binder: unexpected work type, 4, not freed
binder: undelivered TRANSACTION_COMPLETE
binder: invalid inc weak node for 55
binder: 9069:9089 IncRefs 0 refcount change on invalid ref 1 ret -22
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered transaction 54, process died.
binder: 9069:9074 ERROR: BC_REGISTER_LOOPER called without request
binder_alloc: 9069: binder_alloc_buf, no vma
binder: 9069:9089 transaction failed 29189/-3, size 0-0 line 3127
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 0 PID: 9107 Comm: syz-executor1 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801b5bd78d0
FAULT_FLAG_ALLOW_RETRY missing 30
 ffffffff81d94b69 ffff8801b5bd7bb0 0000000000000000
 ffffffff816624ba 00000000000065e3 ffff8801d8a768f0 ffff8801d8a768a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
CPU: 1 PID: 9098 Comm: syz-executor1 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d7747860 ffffffff81d94b69 ffff8801d7747b40 0000000000000000
 ffff8801cbc2e890 ffff8801d7747a30 ffff8801cbc2e780 ffff8801d7747a58
 ffffffff816624ba 00000000000065e3 ffff8801d98f50f0 ffff8801d98f50a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff8116963d>] SyS_rt_sigtimedwait+0x2d/0x40 kernel/signal.c:2821
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
binder: 9069:9074 got reply transaction with no transaction stack
binder: 9069:9074 transaction failed 29201/-71, size 24-8 line 2920
keychord: invalid keycode count 0
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 1 PID: 9098 Comm: syz-executor1 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d77478d0 ffffffff81d94b69 ffff8801d7747bb0 0000000000000000
 ffff8801cbc2ea10 ffff8801d7747aa0 ffff8801cbc2e900 ffff8801d7747ac8
 ffffffff816624ba 00000000000065e3 ffff8801d98f50f0 ffff8801d98f50a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
binder: undelivered TRANSACTION_ERROR: 29201
binder: undelivered TRANSACTION_ERROR: 29189
audit: type=1400 audit(1518191261.437:35): avc:  denied  { lock } for  pid=9133 comm="syz-executor2" path="socket:[20138]" dev="sockfs" ino=20138 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
audit: type=1401 audit(1518191261.477:36): op=setxattr invalid_context=73797374656D5F753A6F626A6563745F723A73797374656D5F64627573645F7661725F6C69625F743A73300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
SELinux:  unknown mount option
audit: type=1401 audit(1518191261.487:37): op=setxattr invalid_context=73797374656D5F753A6F626A6563745F723A73797374656D5F64627573645F7661725F6C69625F743A73300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'.
binder: release 9236:9244 transaction 61 in, still active
binder: send failed reply for transaction 61 to 9236:9259
binder: 9236:9244 ioctl 4c82 0 returned -22
binder: BINDER_SET_CONTEXT_MGR already set
binder: 9236:9278 unknown command 0
binder: 9236:9278 ioctl c0306201 2000afd0 returned -22
binder: 9236:9244 ioctl 40046207 0 returned -16
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29189
netlink: 16 bytes leftover after parsing attributes in process `syz-executor1'.
binder: binder_mmap: 9303 2000c000-20010000 bad vm_flags failed -1
binder: binder_mmap: 9303 2000c000-20010000 bad vm_flags failed -1
netlink: 16 bytes leftover after parsing attributes in process `syz-executor1'.
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 1 PID: 9386 Comm: syz-executor4 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d78bf6f0 ffffffff81d94b69 ffff8801d78bf9d0 0000000000000000
 ffff8801cbc2ee90 ffff8801d78bf8c0 ffff8801cbc2ed80 ffff8801d78bf8e8
 ffffffff816624ba 0000000000001228 ffff8801b08c3968 ffff8801b08c38a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff81bfe279>] sel_commit_bools_write+0xe9/0x1f0 security/selinux/selinuxfs.c:1212
 [<ffffffff8156e4e3>] __vfs_write+0x103/0x680 fs/read_write.c:510
 [<ffffffff815701c9>] vfs_write+0x189/0x530 fs/read_write.c:560
 [<ffffffff81573cb9>] SYSC_write fs/read_write.c:607 [inline]
 [<ffffffff81573cb9>] SyS_write+0xd9/0x1b0 fs/read_write.c:599
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
tc_dump_action: action bad kind
tc_dump_action: action bad kind
binder: 9514:9519 Acquire 1 refcount change on invalid ref 0 ret -22
binder: 9514:9519 unknown command 0
binder: 9514:9519 ioctl c0306201 2000a000 returned -22
binder: 9521:9529 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0
binder: 9521:9522 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0
binder: 9521:9529 BC_DEAD_BINDER_DONE 0000000000000000 not found
binder: undelivered death notification, 0000000000000000
binder: 9514:9536 Acquire 1 refcount change on invalid ref 0 ret -22
audit: type=1400 audit(1518191262.917:38): avc:  denied  { create } for  pid=9543 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_rdma_socket permissive=1
binder: 9514:9536 unknown command 0
binder: 9514:9536 ioctl c0306201 2000a000 returned -22
dummy0: renamed from gre0
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=36 sclass=netlink_tcpdiag_socket pig=9629 comm=syz-executor3
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=36 sclass=netlink_tcpdiag_socket pig=9629 comm=syz-executor3
binder: binder_mmap: 9647 2000c000-20010000 bad vm_flags failed -1
binder: binder_mmap: 9647 2000c000-20010000 bad vm_flags failed -1
binder: 9678:9682 ERROR: BC_REGISTER_LOOPER called without request
binder: unexpected work type, 4, not freed
binder: undelivered TRANSACTION_COMPLETE
binder: 9678:9691 ERROR: BC_REGISTER_LOOPER called without request
binder: 9678:9691 got reply transaction with no transaction stack
binder: 9678:9691 transaction failed 29201/-71, size 32-8 line 2920
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered transaction 66, process died.
binder: release 9678:9682 transaction 70 out, still active
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: send failed reply for transaction 70, target dead
device eql entered promiscuous mode
keychord: unsupported version 0
device gre0 entered promiscuous mode
binder: 9914:9917 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0
binder: 9914:9917 got transaction to invalid handle
binder: 9914:9917 transaction failed 29201/-22, size 0-0 line 3004
binder: 9914:9929 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0
binder: 9914:9929 got transaction to invalid handle
binder: 9914:9929 transaction failed 29201/-22, size 0-0 line 3004
binder: undelivered TRANSACTION_ERROR: 29201
binder: undelivered TRANSACTION_ERROR: 29201
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 0 PID: 9944 Comm: syz-executor4 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d4ee7930 ffffffff81d94b69 ffff8801d4ee7c10 0000000000000000
 ffff8801b678fa90 ffff8801d4ee7b00 ffff8801b678f980 ffff8801d4ee7b28
 ffffffff816624ba 00000000000065e3 ffff8801d68368f0 ffff8801d68368a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
keychord: invalid keycode count 0
keychord: invalid keycode count 0
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 1 PID: 9957 Comm: syz-executor4 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d6a7f930 ffffffff81d94b69 ffff8801d6a7fc10 0000000000000000
 ffff8801b678f790 ffff8801d6a7fb00 ffff8801b678f680 ffff8801d6a7fb28
 ffffffff816624ba 00000000000065e3 ffff8801c202a0f0 ffff8801c202a0a0
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff816624ba>] handle_userfault+0xa3a/0x1310 fs/userfaultfd.c:323
 [<ffffffff814d0da1>] do_anonymous_page mm/memory.c:2747 [inline]
 [<ffffffff814d0da1>] handle_pte_fault mm/memory.c:3488 [inline]
 [<ffffffff814d0da1>] __handle_mm_fault mm/memory.c:3577 [inline]
 [<ffffffff814d0da1>] handle_mm_fault+0x1fd1/0x2530 mm/memory.c:3614
 [<ffffffff810de642>] __do_page_fault+0x5c2/0xd40 arch/x86/mm/fault.c:1407
 [<ffffffff810dede7>] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1470
 [<ffffffff838b4848>] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1055
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
syz-executor3 (10080) used greatest stack depth: 23888 bytes left
binder: 10121:10126 got reply transaction with bad transaction stack, transaction 75 has target 10121:0
binder: 10121:10126 transaction failed 29201/-71, size 0-0 line 2935
binder: BINDER_SET_CONTEXT_MGR already set
binder: 10121:10140 ioctl 40046207 0 returned -16
binder_alloc: 10121: binder_alloc_buf, no vma
binder: 10121:10126 transaction failed 29189/-3, size 0-0 line 3127
binder: 10121:10140 got reply transaction with no transaction stack
binder: 10121:10140 transaction failed 29201/-71, size 0-0 line 2920
binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29201
binder: release 10121:10126 transaction 75 out, still active
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29201
binder: send failed reply for transaction 75, target dead

Crashes (87):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/02/09 15:47 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 20:09 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 17:17 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 15:30 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 09:50 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 07:01 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 06:11 https://android.googlesource.com/kernel/common android-4.9 20c8a0089294 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/08 00:14 https://android.googlesource.com/kernel/common android-4.9 550c01d0e051 9fb5ec43 .config console log report ci-android-49-kasan-gce
2018/02/07 08:22 https://android.googlesource.com/kernel/common android-4.9 550c01d0e051 66c15deb .config console log report ci-android-49-kasan-gce
2018/02/07 02:09 https://android.googlesource.com/kernel/common android-4.9 550c01d0e051 66c15deb .config console log report ci-android-49-kasan-gce
2018/02/07 00:59 https://android.googlesource.com/kernel/common android-4.9 550c01d0e051 66c15deb .config console log report ci-android-49-kasan-gce
2018/02/05 20:31 https://android.googlesource.com/kernel/common android-4.9 b30d2b5deba5 a1bc9d40 .config console log report ci-android-49-kasan-gce
2018/02/05 05:51 https://android.googlesource.com/kernel/common android-4.9 b30d2b5deba5 a1bc9d40 .config console log report ci-android-49-kasan-gce
2018/02/04 01:35 https://android.googlesource.com/kernel/common android-4.9 47af77b1dced 632a8c2c .config console log report ci-android-49-kasan-gce
2018/02/02 15:55 https://android.googlesource.com/kernel/common android-4.9 71f146972231 826b35d6 .config console log report ci-android-49-kasan-gce
2018/02/02 13:40 https://android.googlesource.com/kernel/common android-4.9 71f146972231 826b35d6 .config console log report ci-android-49-kasan-gce
2018/02/02 09:40 https://android.googlesource.com/kernel/common android-4.9 71f146972231 826b35d6 .config console log report ci-android-49-kasan-gce
2018/02/01 20:51 https://android.googlesource.com/kernel/common android-4.9 71f146972231 67bd3383 .config console log report ci-android-49-kasan-gce
2018/01/31 16:44 https://android.googlesource.com/kernel/common android-4.9 71f146972231 02553e22 .config console log report ci-android-49-kasan-gce
2018/01/31 09:05 https://android.googlesource.com/kernel/common android-4.9 7be198545491 02553e22 .config console log report ci-android-49-kasan-gce
2018/01/31 03:09 https://android.googlesource.com/kernel/common android-4.9 7be198545491 02553e22 .config console log report ci-android-49-kasan-gce
2018/01/30 21:34 https://android.googlesource.com/kernel/common android-4.9 7be198545491 a899be78 .config console log report ci-android-49-kasan-gce
2018/01/30 21:25 https://android.googlesource.com/kernel/common android-4.9 7be198545491 a899be78 .config console log report ci-android-49-kasan-gce
2018/01/29 10:49 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08d47756 .config console log report ci-android-49-kasan-gce
2018/01/29 07:30 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08d47756 .config console log report ci-android-49-kasan-gce
2018/01/28 19:50 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08d47756 .config console log report ci-android-49-kasan-gce
2018/01/28 14:29 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08d47756 .config console log report ci-android-49-kasan-gce
2018/01/28 06:27 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08146b1a .config console log report ci-android-49-kasan-gce
2018/01/28 06:20 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08146b1a .config console log report ci-android-49-kasan-gce
2018/01/27 19:07 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 08146b1a .config console log report ci-android-49-kasan-gce
2018/01/27 06:03 https://android.googlesource.com/kernel/common android-4.9 68d447c0a37b 1d18b112 .config console log report ci-android-49-kasan-gce
2018/01/26 10:42 https://android.googlesource.com/kernel/common android-4.9 f518fe49bbaa 1d18b112 .config console log report ci-android-49-kasan-gce
2018/01/25 22:39 https://android.googlesource.com/kernel/common android-4.9 e37256ce150d 1d18b112 .config console log report ci-android-49-kasan-gce
2018/01/25 07:42 https://android.googlesource.com/kernel/common android-4.9 29eadc4b5c13 866f1102 .config console log report ci-android-49-kasan-gce
2018/01/23 15:27 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff a5b7566c .config console log report ci-android-49-kasan-gce
2018/01/23 10:53 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff 228e3d95 .config console log report ci-android-49-kasan-gce
2018/01/23 08:36 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff 228e3d95 .config console log report ci-android-49-kasan-gce
2018/01/23 08:31 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff 228e3d95 .config console log report ci-android-49-kasan-gce
2018/01/22 21:42 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff 228e3d95 .config console log report ci-android-49-kasan-gce
2018/01/22 19:06 https://android.googlesource.com/kernel/common android-4.9 e12a9c4458ff 228e3d95 .config console log report ci-android-49-kasan-gce
* Struck through repros no longer work on HEAD.