===================================== [ BUG: bad unlock balance detected! ] 4.9.67-gf26d3c7 #106 Not tainted ------------------------------------- syz-executor0/10981 is trying to release lock ([ 315.542847] 9pnet_virtio: no channels available for device H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H mrt_lock) at: but there are no more locks to release! other info that might help us debug this: 2 locks held by syz-executor0/10981: #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0x9f/0xc0 fs/file.c:781 #1: (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x1290 fs/seq_file.c:178 stack backtrace: CPU: 1 PID: 10981 Comm: syz-executor0 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d1caf8e8 ffffffff81d906e9 ffffffff849ae8f8 ffff8801c7c01800 ffffffff834dec54 ffffffff849ae8f8 ffff8801c7c02088 ffff8801d1caf918 ffffffff812353f4 dffffc0000000000 ffffffff849ae8f8 00000000ffffffff Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] print_unlock_imbalance_bug+0x174/0x1a0 kernel/locking/lockdep.c:3398 [] __lock_release kernel/locking/lockdep.c:3540 [inline] [] lock_release+0x6f8/0xb80 kernel/locking/lockdep.c:3775 [] __raw_read_unlock include/linux/rwlock_api_smp.h:225 [inline] [] _raw_read_unlock+0x1a/0x50 kernel/locking/spinlock.c:255 [] ipmr_mfc_seq_stop+0xe4/0x140 net/ipv6/ip6mr.c:553 [] seq_read+0xa83/0x1290 fs/seq_file.c:283 [] proc_reg_read+0xef/0x170 fs/proc/inode.c:202 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:880 [inline] [] do_readv_writev+0x520/0x750 fs/read_write.c:874 [] 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+0x23/0xc6 IPVS: Creating netns size=2536 id=63 9pnet_virtio: no channels available for device H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H¨H device gre0 entered promiscuous mode IPVS: Creating netns size=2536 id=64 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev device gre0 entered promiscuous mode netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor4'. keychord: invalid keycode count 0 keychord: invalid keycode count 0 binder: 11381:11385 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 11381:11385 BC_INCREFS_DONE u000000002011a000 no match binder: 11381:11385 got transaction with invalid parent offset or type binder: 11381:11385 transaction failed 29201/-22, size 32-24 line 3253 binder: 11381:11385 got transaction with unaligned buffers size, 58534 binder: 11381:11385 transaction failed 29201/-22, size 0-40 line 3175 binder: BINDER_SET_CONTEXT_MGR already set binder: 11381:11401 ioctl 40046207 0 returned -16 binder_alloc: binder_alloc_mmap_handler: 11381 2011a000-2051a000 already mapped failed -16 binder_alloc: 11381: binder_alloc_buf, no vma binder: 11381:11401 transaction failed 29189/-3, size 0-40 line 3130 binder: undelivered TRANSACTION_ERROR: 29201 binder: 11414:11419 ERROR: BC_REGISTER_LOOPER called without request binder: release 11414:11419 transaction 608 in, still active binder: send failed reply for transaction 608 to 11414:11438 binder_alloc: binder_alloc_mmap_handler: 11414 20000000-20002000 already mapped failed -16 binder_alloc: 11414: binder_alloc_buf, no vma binder: 11414:11419 transaction failed 29189/-3, size 0-0 line 3130 binder: undelivered TRANSACTION_ERROR: 29189 keychord: Insufficient bytes present for keycount 30 keychord: Insufficient bytes present for keycount 30 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 syz-executor4: vmalloc: allocation failure: 17179607040 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11533 Comm: syz-executor4 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8427880 ffffffff81d906e9 1ffff10039084f13 ffff8801a406b000 ffffffff83ab7dc0 0000000000000001 0000000000400000 ffff8801c8427990 ffffffff8144ea02 024000c252795db3 0000000041b58ab3 ffffffff841913b5 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:3063 [] __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+0x21a/0x1e80 net/ipv6/netfilter/ip6_tables.c:730 [] do_replace net/ipv6/netfilter/ip6_tables.c:1182 [inline] [] do_ip6t_set_ctl+0x2be/0x470 net/ipv6/netfilter/ip6_tables.c:1708 [] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 [] ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:911 [] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2736 [] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2706 [] SYSC_setsockopt net/socket.c:1771 [inline] [] SyS_setsockopt+0x160/0x250 net/socket.c:1750 [] entry_SYSCALL_64_fastpath+0x23/0xc6 device gre0 entered promiscuous mode Mem-Info: active_anon:108855 inactive_anon:38 isolated_anon:0 active_file:4566 inactive_file:7197 isolated_file:0 unevictable:0 dirty:65 writeback:0 unstable:0 slab_reclaimable:7701 slab_unreclaimable:39304 mapped:22913 shmem:49 pagetables:770 bounce:0 free:1440985 free_pcp:264 free_cma:0 Node 0 active_anon:435420kB inactive_anon:152kB active_file:18264kB inactive_file:28788kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:91652kB dirty:260kB writeback:0kB shmem:196kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 55296kB 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:2981148kB min:30600kB low:38248kB high:45896kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2981844kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:696kB local_pcp:696kB free_cma:0kB Normal free:2766884kB min:36816kB low:46020kB high:55224kB active_anon:435420kB inactive_anon:152kB active_file:18264kB inactive_file:28788kB unevictable:0kB writepending:260kB present:4718592kB managed:3585220kB mlocked:0kB slab_reclaimable:30804kB slab_unreclaimable:157216kB kernel_stack:5984kB pagetables:3080kB bounce:0kB free_pcp:360kB local_pcp:120kB 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 11811 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 320236 pages reserved syz-executor4: vmalloc: allocation failure: 17179607040 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11585 Comm: syz-executor4 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ccdf7880 ffffffff81d906e9 1ffff100399bef13 ffff8801a66b8000 ffffffff83ab7dc0 0000000000000001 0000000000400000 ffff8801ccdf7990 ffffffff8144ea02 024000c22beec3f2 0000000041b58ab3 ffffffff841913b5 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:3063 [] __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+0x21a/0x1e80 net/ipv6/netfilter/ip6_tables.c:730 [] ? 0xffffffff810002b8 [] do_replace net/ipv6/netfilter/ip6_tables.c:1182 [inline] [] do_ip6t_set_ctl+0x2be/0x470 net/ipv6/netfilter/ip6_tables.c:1708 [] nf_sockopt net/netfilter/nf_sockopt.c:105 [inline] [] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114 [] ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:911 [] tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2736 [] sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2706 [] SYSC_setsockopt net/socket.c:1771 [inline] [] SyS_setsockopt+0x160/0x250 net/socket.c:1750 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Mem-Info: active_anon:108362 inactive_anon:37 isolated_anon:0 active_file:4566 inactive_file:7200 isolated_file:0 unevictable:0 dirty:87 writeback:0 unstable:0 slab_reclaimable:7709 slab_unreclaimable:39840 mapped:22871 shmem:48 pagetables:772 bounce:0 free:1440876 free_pcp:375 free_cma:0 Node 0 active_anon:433448kB inactive_anon:148kB active_file:18264kB inactive_file:28800kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:91484kB dirty:348kB writeback:0kB shmem:192kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 100352kB 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:2981148kB min:30600kB low:38248kB high:45896kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2981844kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:696kB local_pcp:696kB free_cma:0kB Normal free:2766448kB min:36816kB low:46020kB high:55224kB active_anon:433448kB inactive_anon:148kB active_file:18264kB inactive_file:28800kB unevictable:0kB writepending:348kB present:4718592kB managed:3585220kB mlocked:0kB slab_reclaimable:30836kB slab_unreclaimable:159360kB kernel_stack:6080kB pagetables:3088kB bounce:0kB free_pcp:804kB local_pcp:320kB 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 11813 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 320236 pages reserved device gre0 entered promiscuous mode device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=11697 comm=syz-executor3 device gre0 entered promiscuous mode device lo left promiscuous mode device gre0 entered promiscuous mode device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5 sclass=netlink_route_socket pig=11838 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=11838 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5 sclass=netlink_route_socket pig=11870 comm=syz-executor3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=11851 comm=syz-executor3 binder: 11902:11903 ERROR: BC_REGISTER_LOOPER called without request binder: 11902:11903 IncRefs 0 refcount change on invalid ref 131 ret -22 binder: 11902:11903 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 11902:11903 unknown command 0 binder: 11902:11903 ioctl c0306201 20000000 returned -22 binder: 11902:11903 ERROR: BC_REGISTER_LOOPER called without request binder: 11902:11903 IncRefs 0 refcount change on invalid ref 131 ret -22 binder: 11902:11903 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 11920:11921 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 11920:11923 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 11902:11903 unknown command 0 binder: 11902:11903 ioctl c0306201 20000000 returned -22 device gre0 entered promiscuous mode nla_parse: 3 callbacks suppressed netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor0'. FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12070 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 FAULT_FLAG_ALLOW_RETRY missing 30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c66678c0 ffffffff81d906e9 ffff8801c6667ba0 0000000000000000 ffff8801a4626710 ffff8801c6667a90 ffff8801a4626600 ffff8801c6667ab8 ffffffff8165e307 0000000000000000 ffff8801c6667a10 00000001d999f067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 0 PID: 12058 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cac978c0 ffffffff81d906e9 ffff8801cac97ba0 0000000000000000 ffff8801a4626710 ffff8801cac97a90 ffff8801a4626600 ffff8801cac97ab8 ffffffff8165e307 ffffffff838981d3 ffff8801cac97a10 00000001d999f067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 devpts: called with bogus options FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12091 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a36478c0 ffffffff81d906e9 ffff8801a3647ba0 0000000000000000 ffff8801c7b94e90 ffff8801a3647a90 ffff8801c7b94d80 ffff8801a3647ab8 ffffffff8165e307 0000000000000000 ffff8801a3647a10 00000001cfc85067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12077 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ca2e7830 ffffffff81d906e9 ffff8801ca2e7b10 0000000000000000 ffff8801c7b94e90 ffff8801ca2e7a00 ffff8801c7b94d80 ffff8801ca2e7a28 ffffffff8165e307 ffff8801db321400 ffff8801ca2e7980 00000001cfc85067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] SYSC_mq_timedreceive ipc/mqueue.c:1092 [inline] [] SyS_mq_timedreceive+0xcd/0xdb0 ipc/mqueue.c:1077 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12058 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cac978c0 ffffffff81d906e9 ffff8801cac97ba0 0000000000000000 ffff8801c7b94e90 ffff8801cac97a90 ffff8801c7b94d80 ffff8801cac97ab8 ffffffff8165e307 0000000000000000 ffff8801cac97a10 00000001cfc85067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 12064 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d62df710 ffffffff81d906e9 ffff8801d62df9f0 0000000000000000 ffff8801c7b94e90 ffff8801d62df8e0 ffff8801c7b94d80 ffff8801d62df908 ffffffff8165e307 ffffffff84649700 ffff8801d62df860 00000001cfc85067 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] handle_userfault+0xa37/0x1300 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:1406 [] do_page_fault+0x27/0x30 arch/x86/mm/fault.c:1469 [] page_fault+0x28/0x30 arch/x86/entry/entry_64.S:1012 [] SYSC_select fs/select.c:652 [inline] [] SyS_select+0x158/0x1e0 fs/select.c:634 [] entry_SYSCALL_64_fastpath+0x23/0xc6 devpts: called with bogus options netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev binder: 12266:12268 ERROR: BC_REGISTER_LOOPER called without request binder: 12266:12278 got reply transaction with no transaction stack binder: 12266:12278 transaction failed 29201/-71, size 32-8 line 2923 binder_alloc: binder_alloc_mmap_handler: 12266 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 12266:12289 ERROR: BC_REGISTER_LOOPER called without request binder: 12266:12278 ioctl 40046207 0 returned -16 binder: undelivered TRANSACTION_ERROR: 29201