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BUG: using __this_cpu_read() in preemptible code in warn_alloc_failed

Status: auto-closed as invalid on 2019/02/22 14:37
First crash: 2485d, last: 2484d

Sample crash report:
binder: binder_mmap: 5878 20ce4000-20ce5000 bad vm_flags failed -1
vmalloc: allocation failure: 0 bytes
syz-executor6: page allocation failure: order:0, mode:0x24000c2
CPU: 0 PID: 5909 Comm: syz-executor6 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor5/5914
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 0000000000000000 ea57e131002c1f6b ffff8801cda1f938 ffffffff81d0394d
 1ffff10039b43f2a ffff8801cd026000 00000000024000c2 0000000000000000
 0000000000000001 ffff8801cda1fa48 ffffffff814311e9 ffffffff838ac420
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814311e9>] warn_alloc_failed+0x1d9/0x240 mm/page_alloc.c:2757
 [<ffffffff814c871d>] __vmalloc_node_range+0x41d/0x630 mm/vmalloc.c:1692
 [<ffffffff814c89fb>] __vmalloc_node mm/vmalloc.c:1715 [inline]
 [<ffffffff814c89fb>] __vmalloc_node_flags mm/vmalloc.c:1729 [inline]
 [<ffffffff814c89fb>] vmalloc+0x5b/0x70 mm/vmalloc.c:1744
 [<ffffffff81b6fce0>] sel_write_load+0x130/0xff0 security/selinux/selinuxfs.c:527
 [<ffffffff8151d253>] __vfs_write+0x103/0x450 fs/read_write.c:489
 [<ffffffff8151f0ba>] vfs_write+0x18a/0x530 fs/read_write.c:538
 [<ffffffff815217a9>] SYSC_write fs/read_write.c:585 [inline]
 [<ffffffff815217a9>] SyS_write+0xd9/0x1b0 fs/read_write.c:577
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 1 PID: 5914 Comm: syz-executor5 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Mem-Info:
active_anon:49311 inactive_anon:44 isolated_anon:0
 active_file:3547 inactive_file:8187 isolated_file:0
 unevictable:0 dirty:199 writeback:0 unstable:0
 slab_reclaimable:5048 slab_unreclaimable:59947
 mapped:24092 shmem:51 pagetables:670 bounce:0
 free:1476993 free_pcp:650 free_cma:0
DMA free:15904kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15992kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 2911 6411 6411
DMA32 free:2676852kB min:30608kB low:38260kB high:45912kB active_anon:88660kB inactive_anon:88kB active_file:5532kB inactive_file:13772kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3129292kB managed:2982736kB mlocked:0kB dirty:180kB writeback:0kB mapped:46720kB shmem:100kB slab_reclaimable:9044kB slab_unreclaimable:107960kB kernel_stack:2016kB pagetables:1100kB unstable:0kB bounce:0kB free_pcp:1348kB local_pcp:616kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 3500 3500
Normal free:3215216kB min:36808kB low:46008kB high:55212kB active_anon:108584kB inactive_anon:88kB active_file:8656kB inactive_file:18976kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3584660kB mlocked:0kB dirty:616kB writeback:0kB mapped:49648kB shmem:104kB slab_reclaimable:11148kB slab_unreclaimable:131828kB kernel_stack:3712kB pagetables:1580kB unstable:0kB bounce:0kB free_pcp:1252kB local_pcp:588kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 0*4kB 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) = 15904kB
DMA32: 89*4kB (UME) 80*8kB (ME) 55*16kB (ME) 38*32kB (UME) 25*64kB (UME) 19*128kB (UME) 9*256kB (ME) 8*512kB (UME) 9*1024kB (M) 2*2048kB (UE) 647*4096kB (M) = 2676948kB
Normal: 120*4kB (UME) 89*8kB (UME) 53*16kB (UME) 70*32kB (UME) 31*64kB (UME) 14*128kB (UME) 16*256kB (UME) 12*512kB (ME) 14*1024kB (ME) 2*2048kB (UE) 776*4096kB (M) = 3215224kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
11784 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
320144 pages reserved
SELinux:  policydb magic number 0xd455fdba does not match expected magic number 0xf97cff8c
vmalloc: allocation failure: 0 bytes
syz-executor6: page allocation failure: order:0, mode:0x24000c2
 0000000000000000 9658876f28d0b905 ffff8800b276f468 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83d0b920 ffff8800b28cb000
 0000000000000003 ffff8800b276f4a8 ffffffff81d63894 ffff8800b276f4c0
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff832e2208>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff832e2208>] ipcomp_init_state+0x188/0x980 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff833eacf5>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff832c0b77>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2058
 [<ffffffff832df9f6>] xfrm_state_construct net/xfrm/xfrm_user.c:590 [inline]
 [<ffffffff832df9f6>] xfrm_add_sa+0x1916/0x2e40 net/xfrm/xfrm_user.c:636
 [<ffffffff832cff5c>] xfrm_user_rcv_msg+0x41c/0x6b0 net/xfrm/xfrm_user.c:2525
 [<ffffffff82f89f6e>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2349
 [<ffffffff832cc48f>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff82f88af2>] netlink_unicast_kernel net/netlink/af_netlink.c:1267 [inline]
 [<ffffffff82f88af2>] netlink_unicast+0x522/0x760 net/netlink/af_netlink.c:1293
 [<ffffffff82f89618>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
CPU: 0 PID: 5916 Comm: syz-executor6 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 46430754c2208bd4 ffff8801d913f938 ffffffff81d0394d
 1ffff1003b227f2a ffff8801d90cb000 00000000024000c2 0000000000000000
 0000000000000001 ffff8801d913fa48 ffffffff814311e9 ffffffff838ac420
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff814311e9>] warn_alloc_failed+0x1d9/0x240 mm/page_alloc.c:2757
 [<ffffffff814c871d>] __vmalloc_node_range+0x41d/0x630 mm/vmalloc.c:1692
 [<ffffffff814c89fb>] __vmalloc_node mm/vmalloc.c:1715 [inline]
 [<ffffffff814c89fb>] __vmalloc_node_flags mm/vmalloc.c:1729 [inline]
 [<ffffffff814c89fb>] vmalloc+0x5b/0x70 mm/vmalloc.c:1744
 [<ffffffff81b6fce0>] sel_write_load+0x130/0xff0 security/selinux/selinuxfs.c:527
 [<ffffffff8151d253>] __vfs_write+0x103/0x450 fs/read_write.c:489
 [<ffffffff8151f0ba>] vfs_write+0x18a/0x530 fs/read_write.c:538
 [<ffffffff815217a9>] SYSC_write fs/read_write.c:585 [inline]
 [<ffffffff815217a9>] SyS_write+0xd9/0x1b0 fs/read_write.c:577
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
Mem-Info:
active_anon:45416 inactive_anon:44 isolated_anon:0
 active_file:3550 inactive_file:8187 isolated_file:0
 unevictable:0 dirty:202 writeback:0 unstable:0
 slab_reclaimable:5046 slab_unreclaimable:59852
 mapped:24076 shmem:51 pagetables:590 bounce:0
 free:1484425 free_pcp:571 free_cma:0
DMA free:15904kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15992kB managed:15904kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 2911 6411 6411
DMA32 free:2690112kB min:30608kB low:38260kB high:45912kB active_anon:84460kB inactive_anon:88kB active_file:5532kB inactive_file:13772kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3129292kB managed:2982736kB mlocked:0kB dirty:180kB writeback:0kB mapped:46736kB shmem:100kB slab_reclaimable:9044kB slab_unreclaimable:107552kB kernel_stack:2144kB pagetables:1236kB unstable:0kB bounce:0kB free_pcp:924kB local_pcp:252kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 3500 3500
Normal free:3231684kB min:36808kB low:46008kB high:55212kB active_anon:97204kB inactive_anon:88kB active_file:8668kB inactive_file:18976kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4718592kB managed:3584660kB mlocked:0kB dirty:628kB writeback:0kB mapped:49568kB shmem:104kB slab_reclaimable:11140kB slab_unreclaimable:131856kB kernel_stack:4096kB pagetables:1124kB unstable:0kB bounce:0kB free_pcp:1360kB local_pcp:632kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 0*4kB 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) = 15904kB
DMA32: 150*4kB (UME) 86*8kB (UME) 56*16kB (UME) 43*32kB (UME) 25*64kB (UME) 20*128kB (UME) 8*256kB (ME) 9*512kB (UME) 9*1024kB (M) 6*2048kB (UME) 648*4096kB (M) = 2690088kB
Normal: 277*4kB (UME) 127*8kB (UME) 54*16kB (UME) 78*32kB (UME) 30*64kB (UME) 20*128kB (UME) 15*256kB (UME) 15*512kB (ME) 15*1024kB (ME) 4*2048kB (UME) 778*4096kB (M) = 3231724kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
11787 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
320144 pages reserved
SELinux:  policydb magic number 0xd455fdba does not match expected magic number 0xf97cff8c
binder: 5993:5995 ERROR: BC_REGISTER_LOOPER called without request
audit: type=1400 audit(1517558293.319:12): avc:  denied  { call } for  pid=5993 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=binder permissive=1
binder: 5993:5995 ioctl c0306201 20009000 returned -14
binder: BINDER_SET_CONTEXT_MGR already set
binder: 5993:5995 ioctl 40046207 0 returned -16
binder: 5993:5995 ERROR: BC_REGISTER_LOOPER called without request
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered transaction 8, process died.
netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'.
audit_printk_skb: 6 callbacks suppressed
audit: type=1400 audit(1517558294.599:15): avc:  denied  { write } for  pid=6177 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_netfilter_socket permissive=1
audit: type=1400 audit(1517558294.869:16): avc:  denied  { ioctl } for  pid=6271 comm="syz-executor6" path="socket:[12533]" dev="sockfs" ino=12533 ioctlcmd=5334 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
skbuff: bad partial csum: csum=0/65535 len=14
IPVS: set_ctl: invalid protocol: 13703 39.52.93.236:60696 Ɓtpm`x/.HݼބDBC+
IPVS: set_ctl: invalid protocol: 13703 39.52.93.236:60696 Ɓtpm`x/.HݼބDBC+
netlink: 64 bytes leftover after parsing attributes in process `syz-executor2'.
binder: 6820:6821 transaction failed 29189/-22, size 80-16 line 3005
binder_alloc: binder_alloc_mmap_handler: 6820 20000000-20002000 already mapped failed -16
binder: 6820:6828 transaction failed 29189/-22, size 80-16 line 3005
netlink: 64 bytes leftover after parsing attributes in process `syz-executor2'.
audit: type=1400 audit(1517558297.699:17): avc:  denied  { bind } for  pid=7010 comm="syz-executor5" 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=1400 audit(1517558297.729:18): avc:  denied  { getattr } for  pid=7010 comm="syz-executor5" 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
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor2/7213
SELinux:  unknown mount option
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 0 PID: 7213 Comm: syz-executor2 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000[   47.096949] SELinux:  unknown mount option
 e8d6c01a578b141b ffff8800b904f468 ffffffff81d0394d
 0000000000000000 ffffffff839fe3a0 ffffffff83d0b920 ffff8801d93cb000
 0000000000000003 ffff8800b904f4a8 ffffffff81d63894 ffff8800b904f4c0
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff832e2208>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff832e2208>] ipcomp_init_state+0x188/0x980 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff833eacf5>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff832c0b77>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2058
 [<ffffffff832df9f6>] xfrm_state_construct net/xfrm/xfrm_user.c:590 [inline]
 [<ffffffff832df9f6>] xfrm_add_sa+0x1916/0x2e40 net/xfrm/xfrm_user.c:636
 [<ffffffff832cff5c>] xfrm_user_rcv_msg+0x41c/0x6b0 net/xfrm/xfrm_user.c:2525
 [<ffffffff82f89f6e>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2349
 [<ffffffff832cc48f>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff82f88af2>] netlink_unicast_kernel net/netlink/af_netlink.c:1267 [inline]
 [<ffffffff82f88af2>] netlink_unicast+0x522/0x760 net/netlink/af_netlink.c:1293
 [<ffffffff82f89618>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor2/7221
caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
CPU: 1 PID: 7221 Comm: syz-executor2 Not tainted 4.4.114-ga81d322 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 69d17e9251393f57 ffff8800b9107468 ffffffff81d0394d
 0000000000000001 ffffffff839fe3a0 ffffffff83d0b920 ffff8801d64d6000
 0000000000000003 ffff8800b91074a8 ffffffff81d63894 ffff8800b91074c0
Call Trace:
 [<ffffffff81d0394d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d0394d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81d63894>] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46
 [<ffffffff81d638fc>] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62
 [<ffffffff832e2208>] ipcomp_alloc_tfms net/xfrm/xfrm_ipcomp.c:286 [inline]
 [<ffffffff832e2208>] ipcomp_init_state+0x188/0x980 net/xfrm/xfrm_ipcomp.c:363
 [<ffffffff833eacf5>] ipcomp6_init_state+0xb5/0x820 net/ipv6/ipcomp6.c:165
 [<ffffffff832c0b77>] __xfrm_init_state+0x3e7/0xb30 net/xfrm/xfrm_state.c:2058
 [<ffffffff832df9f6>] xfrm_state_construct net/xfrm/xfrm_user.c:590 [inline]
 [<ffffffff832df9f6>] xfrm_add_sa+0x1916/0x2e40 net/xfrm/xfrm_user.c:636
 [<ffffffff832cff5c>] xfrm_user_rcv_msg+0x41c/0x6b0 net/xfrm/xfrm_user.c:2525
 [<ffffffff82f89f6e>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2349
 [<ffffffff832cc48f>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff82f88af2>] netlink_unicast_kernel net/netlink/af_netlink.c:1267 [inline]
 [<ffffffff82f88af2>] netlink_unicast+0x522/0x760 net/netlink/af_netlink.c:1293
 [<ffffffff82f89618>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82deb3ba>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82deb3ba>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82decf91>] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962
 [<ffffffff82deefe3>] __sys_sendmsg+0xd3/0x190 net/socket.c:1996
 [<ffffffff82def0cd>] SYSC_sendmsg net/socket.c:2007 [inline]
 [<ffffffff82def0cd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2003
 [<ffffffff83773edf>] entry_SYSCALL_64_fastpath+0x1c/0x98
audit: type=1400 audit(1517558299.399:19): avc:  denied  { write } for  pid=7269 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
TCP: request_sock_TCPv6: Possible SYN flooding on port 20018. Sending cookies.  Check SNMP counters.
binder: BINDER_SET_CONTEXT_MGR already set
binder: 7375:7381 ioctl 40046207 0 returned -16
binder_alloc: 7375: binder_alloc_buf, no vma
binder: 7375:7393 transaction failed 29189/-3, size 0-0 line 3128
binder: undelivered TRANSACTION_ERROR: 29189
binder: release 7375:7381 transaction 14 in, still active
binder: send failed reply for transaction 14 to 7375:7393
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29189
netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'.
TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies.  Check SNMP counters.
audit: type=1400 audit(1517558300.889:20): avc:  denied  { setattr } for  pid=7648 comm="syz-executor5" name="NETLINK" dev="sockfs" ino=14356 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
TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=57531 sclass=netlink_route_socket
audit: type=1400 audit(1517558301.239:21): avc:  denied  { create } for  pid=7760 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1
audit: type=1400 audit(1517558301.279:22): avc:  denied  { write } for  pid=7760 comm="syz-executor7" path="socket:[14416]" dev="sockfs" ino=14416 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1
binder_alloc: binder_alloc_mmap_handler: 7813 20000000-20002000 already mapped failed -16

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/02/02 07:58 https://android.googlesource.com/kernel/common android-4.4 a81d32264721 826b35d6 .config console log report ci-android-44-kasan-gce
2018/02/01 14:28 https://android.googlesource.com/kernel/common android-4.4 fe09418d6f88 02553e22 .config console log report ci-android-44-kasan-gce
2018/02/01 23:22 https://android.googlesource.com/kernel/common android-4.4 a81d32264721 67bd3383 .config console log report ci-android-44-kasan-gce-386
* Struck through repros no longer work on HEAD.