check_preemption_disabled: 16 callbacks suppressed BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor3/6404 syz-executor6: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 6422 Comm: syz-executor6 Not tainted 4.9.78-g29eadc4 #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c49e7948 ffffffff81d943a9 1ffff1003893cf2c ffff8801c3f88000 ffffffff83ab8ea0 0000000000000001 0000000000400000 ffff8801c49e7a58 ffffffff81451b82 024000c2c49e7998 0000000041b58ab3 ffffffff84195325 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 [] sel_write_load+0x130/0xfd0 security/selinux/selinuxfs.c:514 [] __vfs_write+0x103/0x680 fs/read_write.c:510 [] vfs_write+0x189/0x530 fs/read_write.c:560 [] SYSC_pwrite64 fs/read_write.c:649 [inline] [] SyS_pwrite64+0x13f/0x170 fs/read_write.c:636 [] entry_SYSCALL_64_fastpath+0x29/0xe8 Mem-Info: active_anon:54258 inactive_anon:43 isolated_anon:0 active_file:3567 inactive_file:7899 isolated_file:0 unevictable:0 dirty:113 writeback:0 unstable:0 slab_reclaimable:5714 slab_unreclaimable:60187 mapped:23778 shmem:49 pagetables:634 bounce:0 free:1475760 free_pcp:397 free_cma:0 Node 0 active_anon:217032kB inactive_anon:172kB active_file:14268kB inactive_file:31596kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:95112kB dirty:452kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 75776kB 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 DMA32 free:2980000kB min:30596kB low:38244kB high:45892kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2980760kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:760kB local_pcp:48kB free_cma:0kB Normal free:2907132kB min:36824kB low:46028kB high:55232kB active_anon:217032kB inactive_anon:172kB active_file:14268kB inactive_file:31596kB unevictable:0kB writepending:452kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22856kB slab_unreclaimable:240748kB kernel_stack:5664kB pagetables:2536kB bounce:0kB free_pcp:828kB local_pcp:484kB free_cma:0kB 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 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11514 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 320509 pages reserved syz-executor6: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 6422 Comm: syz-executor6 Not tainted 4.9.78-g29eadc4 #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c49e7948 ffffffff81d943a9 1ffff1003893cf2c ffff8801c3f88000 ffffffff83ab8ea0 0000000000000001 0000000000400000 ffff8801c49e7a58 ffffffff81451b82 024000c2c49e7998 0000000041b58ab3 ffffffff84195325 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 [] sel_write_load+0x130/0xfd0 security/selinux/selinuxfs.c:514 [] __vfs_write+0x103/0x680 fs/read_write.c:510 [] vfs_write+0x189/0x530 fs/read_write.c:560 [] SYSC_pwrite64 fs/read_write.c:649 [inline] [] SyS_pwrite64+0x13f/0x170 fs/read_write.c:636 [] entry_SYSCALL_64_fastpath+0x29/0xe8 Mem-Info: active_anon:54327 inactive_anon:43 isolated_anon:0 active_file:3567 inactive_file:7899 isolated_file:0 unevictable:0 dirty:113 writeback:0 unstable:0 slab_reclaimable:5714 slab_unreclaimable:60219 mapped:23803 shmem:49 pagetables:671 bounce:0 free:1475554 free_pcp:295 free_cma:0 Node 0 active_anon:217308kB inactive_anon:172kB active_file:14268kB inactive_file:31596kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:95212kB dirty:452kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 75776kB 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 DMA32 free:2980000kB min:30596kB low:38244kB high:45892kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2980760kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:760kB local_pcp:48kB free_cma:0kB Normal free:2906308kB min:36824kB low:46028kB high:55232kB active_anon:217308kB inactive_anon:172kB active_file:14268kB inactive_file:31596kB unevictable:0kB writepending:452kB present:4718592kB managed:3585212kB mlocked:0kB slab_reclaimable:22856kB slab_unreclaimable:240876kB kernel_stack:5792kB pagetables:2684kB bounce:0kB free_pcp:420kB local_pcp:76kB free_cma:0kB 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 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11514 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 320509 pages reserved caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 1 PID: 6404 Comm: syz-executor3 Not tainted 4.9.78-g29eadc4 #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c4497490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 ffffffff83f45480 ffff8801c45de000 0000000000000003 ffff8801c44974d0 ffffffff81dfb974 ffff8801c44974e8 ffffffff83f45480 dffffc0000000000 Call Trace: [] __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 [] __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 [] ipcomp4_init_state+0xb0/0x7d0 net/ipv4/ipcomp.c:137 [] __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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=787 sclass=netlink_route_socket pig=6453 comm=syz-executor5 netlink: 17 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor6'. syz-executor1 uses obsolete (PF_INET,SOCK_PACKET) device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device gre0 entered promiscuous mode skbuff: bad partial csum: csum=65535/0 len=36 sg_write: data in/out 1969188161/13 bytes for SCSI command 0x73-- guessing data in; program syz-executor3 not setting count and/or reply_len properly binder: 6776:6778 ioctl 541b 20bb8000 returned -22 binder: 6776:6778 ioctl c0306201 20fb2fd0 returned -14 binder: 6776:6778 ioctl 541b 20bb8000 returned -22 binder: 6776:6781 ioctl c0306201 20fb2fd0 returned -14 audit: type=1400 audit(1516866159.976:26): avc: denied { setattr } for pid=6768 comm="syz-executor5" name="comm" dev="proc" ino=15897 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=file permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20026. Sending cookies. Check SNMP counters. mmap: syz-executor0 (6890): VmData 35160064 exceed data ulimit 0. Update limits or use boot option ignore_rlimit_data. audit: type=1400 audit(1516866160.366:27): avc: denied { bind } for pid=6891 comm="syz-executor3" 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(1516866160.486:28): avc: denied { validate_trans } for pid=6924 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:security_t:s0 tclass=security permissive=1 device gre0 entered promiscuous mode TCP: request_sock_TCPv6: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. device lo entered promiscuous mode device lo left promiscuous mode 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 audit: type=1400 audit(1516866161.586:29): avc: denied { net_bind_service } for pid=7234 comm="syz-executor7" capability=10 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=23 sclass=netlink_route_socket pig=7269 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=23 sclass=netlink_route_socket pig=7285 comm=syz-executor0 binder: 7368:7396 BC_CLEAR_DEATH_NOTIFICATION death notification not active binder: undelivered death notification, 0000000000000000 binder: BINDER_SET_CONTEXT_MGR already set binder: 7443:7447 ioctl 40046207 0 returned -16 binder: undelivered death notification, 0000000000000000 IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE IPv6: NLM_F_CREATE should be set when creating new route IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE TCP: request_sock_TCP: Possible SYN flooding on port 20001. Sending cookies. Check SNMP counters. audit: type=1400 audit(1516866165.126:30): avc: denied { setgid } for pid=8210 comm="syz-executor6" capability=6 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 IPVS: Creating netns size=2536 id=10 pktgen: kernel_thread() failed for cpu 0 pktgen: Cannot create thread for cpu 0 (-4) pktgen: kernel_thread() failed for cpu 1 pktgen: Cannot create thread for cpu 1 (-4) pktgen: Initialization failed for all threads FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 8334 Comm: syz-executor1 Not tainted 4.9.78-g29eadc4 #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d4a17940 ffffffff81d943a9 ffff8801d4a17c20 0000000000000000 ffff8801cf92a110 ffff8801d4a17b10 ffff8801cf92a000 ffff8801d4a17b38 ffffffff81661d4a 0000000000002e68 ffff8801cd8388f0 ffff8801cd8388a0 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 binder: 8365:8366 ERROR: BC_REGISTER_LOOPER called without request audit: type=1400 audit(1516866166.586:31): avc: denied { transfer } for pid=8365 comm="syz-executor6" 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: 8365:8366 BC_INCREFS_DONE ufffffffffffffffe node 22 cookie mismatch 0000000000000003 != 0000000000000000 binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 21, process died. binder: 8365:8382 ERROR: BC_REGISTER_LOOPER called without request binder: 8365:8386 got reply transaction with no transaction stack binder: 8365:8386 transaction failed 29201/-71, size 32-8 line 2920 binder: 8365:8382 DecRefs 0 refcount change on invalid ref 1 ret -22 binder: 8365:8382 BC_INCREFS_DONE ufffffffffffffffe no match binder: release 8365:8366 transaction 25 out, still active binder: undelivered TRANSACTION_COMPLETE binder: release 8365:8382 transaction 25 in, still active binder: send failed reply for transaction 25, target dead binder: binder_mmap: 8433 20545000-20549000 bad vm_flags failed -1 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 8498 Comm: syz-executor4 Not tainted 4.9.78-g29eadc4 #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cd22f930 ffffffff81d943a9 ffff8801cd22fc10 0000000000000000 ffff8801c3555610 ffff8801cd22fb00 ffff8801c3555500 ffff8801cd22fb28 ffffffff81661d4a 0000000000002e68 ffff8801cd1538f0 ffff8801cd1538a0 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