===================================== [ BUG: bad unlock balance detected! ] 4.9.67-gf26d3c7 #106 Not tainted ------------------------------------- syz-executor5/22622 is trying to release lock ([ 150.406856] keychord: invalid keycode count 0 mrt_lock) at: but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor5/22622: #0: [ 150.441267] @: renamed from syz1 ([ 150.445197] SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5521 sclass=netlink_route_socket pig=22637 comm=syz-executor0 &p->lock){+.+.+.}, at: [] seq_read+0xdd/0x1290 fs/seq_file.c:178 stack backtrace: CPU: 0 PID: 22622 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c907f8e8 ffffffff81d906e9 ffffffff849ae8f8 ffff8801c66f4800 ffffffff834dec54 ffffffff849ae8f8 ffff8801c66f5088 ffff8801c907f918 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=5521 sclass=netlink_route_socket pig=22651 comm=syz-executor0 [] __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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 6 bytes leftover after parsing attributes in process `syz-executor1'. device lo entered promiscuous mode qtaguid: iface_stat: create(lo): no inet dev qtaguid: iface_stat: create6(lo): no inet dev IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor3'. Option ' V7]}?Pl  Option ' V7]}?Pl  tc_dump_action: action bad kind SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=23137 comm=syz-executor4 @: renamed from syz7 netlink: 1 bytes leftover after parsing attributes in process `syz-executor3'. @: renamed from syz6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=23375 comm=syz-executor7 qtaguid: iface_stat: create(lo): no inet dev qtaguid: iface_stat: create6(lo): no inet dev 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 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev handle_userfault: 3 callbacks suppressed FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 23407 Comm: syz-executor6 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a629f990 ffffffff81d906e9 ffff8801a629fc70 0000000000000000 ffff8801c4659310 ffff8801a629fb60 ffff8801c4659200 ffff8801a629fb88 ffffffff8165e307 ffff8801c609e000 ffff8801a629fae0 00000001cc272067 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 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev device lo left promiscuous mode device lo entered promiscuous mode qtaguid: iface_stat: create(lo): no inet dev 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 lo left promiscuous mode CPU: 0 PID: 23418 Comm: syz-executor6 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a9ff76c0 ffffffff81d906e9 ffff8801a9ff79a0 0000000000000000 ffff8801c4659310 ffff8801a9ff7890 ffff8801c4659200 ffff8801a9ff78b8 ffffffff8165e307 1ffff100353feedc ffff8801a9ff7810 00000001cc272067 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 [] process_vm_rw+0x1bf/0x210 mm/process_vm_access.c:280 [] SYSC_process_vm_writev mm/process_vm_access.c:307 [inline] [] SyS_process_vm_writev+0x47/0x60 mm/process_vm_access.c:302 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 23418 Comm: syz-executor6 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a9ff7990 ffffffff81d906e9 ffff8801a9ff7c70 0000000000000000 ffff8801c4658110 ffff8801a9ff7b60 ffff8801c4658000 ffff8801a9ff7b88 ffffffff8165e307 ffffffff810ec8f0 ffff8801a9ff7ae0 00000001cc272067 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 binder: 23507:23510 got transaction with invalid offsets ptr binder: 23507:23510 transaction failed 29201/-14, size 0-4095 line 3158 binder_alloc: 23507: binder_alloc_buf, no vma binder: BINDER_SET_CONTEXT_MGR already set binder: 23507:23510 ioctl 40046207 0 returned -16 binder: 23507:23539 transaction failed 29189/-3, size 0-4095 line 3130 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 IPVS: set_ctl: invalid protocol: 31912 1.136.255.255:21692 F device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready qtaguid: iface_stat: create6(lo): no inet dev device lo left promiscuous mode device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=23618 comm=syz-executor3 qtaguid: iface_stat: create(lo): no inet dev 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 lo left promiscuous mode sock: process `syz-executor4' is using obsolete getsockopt SO_BSDCOMPAT qtaguid: iface_stat: create(lo): no inet dev qtaguid: iface_stat: create6(lo): no inet dev loop_reread_partitions: partition scan of loop0 (2]fIB!S,D') failed (rc=-13) FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 23766 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a5ed79a0 ffffffff81d906e9 ffff8801a5ed7c80 0000000000000000 ffff8801c4659c10 ffff8801a5ed7b70 ffff8801c4659b00 ffff8801a5ed7b98 ffffffff8165e307 0000000000000282 ffff8801a5ed7af0 00000001c87f4067 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 device gre0 left promiscuous mode device gre0 entered promiscuous mode device gre0 left promiscuous mode device gre0 entered promiscuous mode CPU: 0 PID: 23755 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ce8e7970 ffffffff81d906e9 ffff8801ce8e7c50 0000000000000000 ffff8801c4659c10 ffff8801ce8e7b40 ffff8801c4659b00 ffff8801ce8e7b68 ffffffff8165e307 ffff8801ce8e79d8 ffff8801ce8e7ac0 00000001c87f4067 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 loop_reread_partitions: partition scan of loop0 () failed (rc=-13) binder: 23873:23881 tried to acquire reference to desc 0, got 1 instead binder: 23873:23881 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 23873:23877 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: undelivered death notification, 0000000000000000 keychord: unsupported version 0 keychord: unsupported version 0 device gre0 entered promiscuous mode device gre0 left promiscuous mode device gre0 entered promiscuous mode binder: 24018:24020 ioctl 40046205 ffffffffffffff89 returned -22 binder: 24018:24020 Release 1 refcount change on invalid ref 4 ret -22 binder: 24018:24020 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 24018:24020 unknown command 0 binder: 24018:24020 ioctl c0306201 20000fd0 returned -22 binder: 24018:24020 unknown command 1055875517 binder: 24018:24020 ioctl c0306201 20001000 returned -22 binder: 24018:24020 ioctl 40046205 ffffffffffffff89 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 24018:24029 ioctl 40046207 0 returned -16 binder: 24018:24029 Release 1 refcount change on invalid ref 4 ret -22 binder: 24018:24029 unknown command 0 binder: 24018:24029 ioctl c0306201 20000fd0 returned -22 binder: 24018:24029 unknown command 1055875517 binder: 24018:24029 ioctl c0306201 20001000 returned -22 device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready rfkill: input handler disabled device gre0 entered promiscuous mode rfkill: input handler enabled loop_reread_partitions: partition scan of loop0 (2]fIB!S,D') failed (rc=-13) loop_reread_partitions: partition scan of loop0 () failed (rc=-13) sock: process `syz-executor1' is using obsolete setsockopt SO_BSDCOMPAT SELinux: unrecognized netlink message: protocol=4 nlmsg_type=1270 sclass=netlink_tcpdiag_socket pig=24417 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=1270 sclass=netlink_tcpdiag_socket pig=24432 comm=syz-executor5 device gre0 entered promiscuous mode device gre0 left promiscuous mode device gre0 entered promiscuous mode device gre0 entered promiscuous mode binder: 24660:24661 got reply transaction with no transaction stack binder: 24660:24661 transaction failed 29201/-71, size 2-1144397507205 line 2923 binder: 24660:24680 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 24660:24680 got transaction to invalid handle binder: 24660:24680 transaction failed 29201/-22, size 64-32 line 3007 loop_reread_partitions: partition scan of loop0 (2]fIB!S,D') failed (rc=-13) binder: 24660:24688 BC_INCREFS_DONE uffffffffffffffff no match binder: 24660:24688 got transaction to invalid handle binder: 24660:24688 transaction failed 29201/-22, size 40-16 line 3007 binder: send failed reply for transaction 295 to 24660:24688 binder: 24660:24661 ioctl c0306201 2000efd0 returned -14 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 binder: 24660:24688 ioctl c0306201 20002fd0 returned -14 program syz-executor4 is using a deprecated SCSI ioctl, please convert it to SG_IO sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0 binder: 24705:24708 ioctl 40046205 ffffffffffffff89 returned -22 binder: 24705:24708 Release 1 refcount change on invalid ref 4 ret -22 binder: 24705:24708 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 24705:24708 unknown command 0 binder: 24705:24708 ioctl c0306201 20000fd0 returned -22 binder: 24705:24708 ioctl c0306201 20001000 returned -11 binder: 24660:24704 got reply transaction with no transaction stack binder: 24660:24704 transaction failed 29201/-71, size 2-1144397507205 line 2923 binder: BINDER_SET_CONTEXT_MGR already set binder: 24660:24704 ioctl 40046207 0 returned -16 binder: 24705:24708 ioctl 40046205 ffffffffffffff89 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 24705:24710 ioctl 40046207 0 returned -16 nla_parse: 15 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. binder: 24705:24710 unknown command 0 binder: 24705:24710 ioctl c0306201 20000fd0 returned -22 binder: 24660:24688 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 24660:24688 got transaction to invalid handle binder: 24660:24688 transaction failed 29201/-22, size 64-32 line 3007 binder: 24660:24711 unknown command 0 binder: 24660:24711 ioctl c0306201 20003000 returned -22 binder: 24705:24710 ioctl c0306201 20001000 returned -11 binder_alloc: 24660: binder_alloc_buf, no vma binder: 24660:24711 transaction failed 29189/-3, size 0-0 line 3130 netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. IPv6: Can't replace route, no match found loop_reread_partitions: partition scan of loop0 () failed (rc=-13) IPv6: Can't replace route, no match found binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=24772 comm=syz-executor4 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 24786 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ccdcf710 ffffffff81d906e9 ffff8801ccdcf9f0 0000000000000000 ffff8801a5f8c710 ffff8801ccdcf8e0 ffff8801a5f8c600 ffff8801ccdcf908 ffffffff8165e307 ffffffff84649700 ffff8801ccdcf860 00000001a74fd067 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 netlink: 17 bytes leftover after parsing attributes in process `syz-executor0'. CPU: 1 PID: 24793 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cb4f7890 ffffffff81d906e9 ffff8801cb4f7b70 0000000000000000 ffff8801a5f8c710 ffff8801cb4f7a60 ffff8801a5f8c600 ffff8801cb4f7a88 ffffffff8165e307 0000000000000000 ffff8801cb4f79e0 00000001a74fd067 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 [] getname_flags+0x10e/0x580 fs/namei.c:148 [] getname+0x19/0x20 fs/namei.c:208 [] do_sys_open+0x21d/0x4c0 fs/open.c:1066 [] SYSC_openat fs/open.c:1099 [inline] [] SyS_openat+0x30/0x40 fs/open.c:1093 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 24804 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a555f930 ffffffff81d906e9 ffff8801a555fc10 0000000000000000 ffff8801a5f8c410 ffff8801a555fb00 ffff8801a5f8c300 ffff8801a555fb28 ffffffff8165e307 ffff8801a555fac8 ffff8801a555fa80 00000001d8d0f067 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: 24793 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cb4f7890 ffffffff81d906e9 ffff8801cb4f7b70 0000000000000000 ffff8801a5f8c410 ffff8801cb4f7a60 ffff8801a5f8c300 ffff8801cb4f7a88 ffffffff8165e307 ffff8801c8e26a00 ffff8801cb4f79e0 00000001d8d0f067 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 [] getname_flags+0x10e/0x580 fs/namei.c:148 [] getname+0x19/0x20 fs/namei.c:208 [] do_sys_open+0x21d/0x4c0 fs/open.c:1066 [] SYSC_openat fs/open.c:1099 [inline] [] SyS_openat+0x30/0x40 fs/open.c:1093 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 1 PID: 24786 Comm: syz-executor5 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801ccdcf710 ffffffff81d906e9 ffff8801ccdcf9f0 0000000000000000 ffff8801a5f8c410 ffff8801ccdcf8e0 ffff8801a5f8c300 ffff8801ccdcf908 ffffffff8165e307 ffffffff84649700 ffff8801ccdcf860 00000001d8d0f067 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. IPv6: Can't replace route, no match found netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. IPv6: Can't replace route, no match found device gre0 entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 20 CPU: 1 PID: 24902 Comm: syz-executor4 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c8ea72d8 ffffffff81d906e9 ffff8801c8ea75b8 0000000000000000 ffff8801c4658a10 ffff8801c8ea74a8 ffff8801c4658900 ffff8801c8ea74d0 ffffffff8165e307 0000000000000000 ffff8801c8ea7428 00000001a8306067 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 [] faultin_page mm/gup.c:386 [inline] [] __get_user_pages+0x39a/0x1010 mm/gup.c:585 [] __get_user_pages_locked mm/gup.c:797 [inline] [] __get_user_pages_unlocked mm/gup.c:872 [inline] [] get_user_pages_unlocked+0x1d3/0x370 mm/gup.c:900 [] get_user_pages_fast+0x11e/0x320 arch/x86/mm/gup.c:440 [] get_futex_key+0x20a/0x1050 kernel/futex.c:545 [] futex_requeue+0x215/0x15c0 kernel/futex.c:1743 [] do_futex+0x48f/0x15c0 kernel/futex.c:3242 [] SYSC_futex kernel/futex.c:3280 [inline] [] SyS_futex+0x226/0x2d0 kernel/futex.c:3248 [] entry_SYSCALL_64_fastpath+0x23/0xc6 device gre0 entered promiscuous mode CPU: 1 PID: 24906 Comm: syz-executor4 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a35f7930 ffffffff81d906e9 ffff8801a35f7c10 0000000000000000 ffff8801c4658a10 ffff8801a35f7b00 ffff8801c4658900 ffff8801a35f7b28 ffffffff8165e307 ffff8801a35f7ac8 ffff8801a35f7a80 00000001a8306067 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 binder: 25063:25074 ioctl 8918 20ad9000 returned -22 binder: 25063:25074 ioctl 8924 20002000 returned -22 binder: 25063:25074 ERROR: BC_REGISTER_LOOPER called without request binder: 25074 RLIMIT_NICE not set binder: 25063:25074 ioctl 8918 20ad9000 returned -22 binder: 25063:25074 ioctl 8924 20002000 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 25063:25130 ioctl 40046207 0 returned -16 binder: 25063:25105 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 25063: binder_alloc_buf, no vma binder: 25063:25130 transaction failed 29189/-3, size 0-0 line 3130 netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. binder: undelivered TRANSACTION_ERROR: 29189 binder: release 25063:25074 transaction 301 in, still active binder: send failed reply for transaction 301 to 25063:25105 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. binder: 25231:25234 Acquire 1 refcount change on invalid ref 0 ret -22 IPVS: Creating netns size=2536 id=37