===================================== binder: 29940:29949 transaction failed 29189/-22, size 80-16 line 3007 [ BUG: bad unlock balance detected! ] 4.9.67-gf26d3c7 #106 Not tainted ------------------------------------- IPv6: NLM_F_REPLACE set, but no existing node found! syz-executor0/29944 is trying to release lock ([ 174.138830] IPv6: NLM_F_REPLACE set, but no existing node found! mrt_lock) at: but there are no more locks to release! other info that might help us debug this: binder: 29940:29964 transaction failed 29189/-22, size 80-16 line 3007 1 lock held by syz-executor0/29944: #0: (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x1290 fs/seq_file.c:178 stack backtrace: CPU: 0 PID: 29944 Comm: syz-executor0 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d8fd78e8 ffffffff81d906e9 ffffffff849ae8f8 ffff8801c6046000 ffffffff834dec54 ffffffff849ae8f8 ffff8801c6046888 ffff8801d8fd7918 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 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 device gre0 entered promiscuous mode binder: 30108:30115 ioctl 40046205 56e returned -22 binder: 30108:30115 ioctl 40046205 0 returned -22 binder: 30108:30115 ERROR: BC_REGISTER_LOOPER called without request binder: 30108:30115 ioctl c0306201 20008fd0 returned -11 binder: 30108:30115 unknown command 1400526783 binder: 30108:30115 ioctl c0306201 20002fd0 returned -22 binder: 30108:30115 got reply transaction with no transaction stack binder: 30108:30115 transaction failed 29201/-71, size 40-8 line 2923 binder: 30108:30115 ioctl c0306201 20005fd0 returned -14 binder: release 30108:30115 transaction 303 out, still active binder: undelivered TRANSACTION_COMPLETE binder: 30108:30115 BC_FREE_BUFFER u0000000000000000 no match binder: 30108:30116 ioctl 40046205 56e returned -22 binder: 30108:30116 ioctl 40046205 0 returned -22 binder_alloc: binder_alloc_mmap_handler: 30108 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 30108:30115 ioctl 40046207 0 returned -16 binder: 30108:30116 ERROR: BC_REGISTER_LOOPER called without request binder: 30108:30116 ioctl c0306201 20008fd0 returned -11 binder_alloc: 30108: binder_alloc_buf, no vma binder: 30108:30115 transaction failed 29189/-3, size 0-0 line 3130 binder: 30108:30115 got reply transaction with no transaction stack binder: 30108:30115 transaction failed 29201/-71, size 40-8 line 2923 binder: 30108:30115 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 303, target dead nla_parse: 20 callbacks suppressed netlink: 21 bytes leftover after parsing attributes in process `syz-executor0'. device gre0 left promiscuous mode netlink: 21 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. IPVS: Creating netns size=2536 id=42 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 netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor1'. binder: 30498:30503 DecRefs 0 refcount change on invalid ref 8 ret -22 binder: 30498:30503 unknown command 0 binder: 30498:30503 ioctl c0306201 20003fd0 returned -22 binder: 30498 invalid dec weak, ref 308 desc 0 s 1 w 0 binder: 30498:30512 unknown command 0 binder: 30498:30512 ioctl c0306201 20008000 returned -22 device lo entered promiscuous mode binder: BINDER_SET_CONTEXT_MGR already set binder: 30498:30503 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 30498:30503 unknown command 0 binder: 30498:30503 ioctl c0306201 20008000 returned -22 binder: 30498:30512 ioctl 40046207 0 returned -16 binder: 30498:30521 unknown command 8 binder: 30498:30521 ioctl c0306201 20003fd0 returned -22 FAULT_FLAG_ALLOW_RETRY missing 30 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 30633 Comm: syz-executor7 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a7caf840 ffffffff81d906e9 ffff8801a7cafb20 0000000000000000 ffff8801cf2d2410 ffff8801a7cafa10 ffff8801cf2d2300 ffff8801a7cafa38 ffffffff8165e307 0000000000000000 ffff8801a7caf990 00000001d5a4e067 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_fsetxattr fs/xattr.c:504 [inline] [] SyS_fsetxattr+0x130/0x190 fs/xattr.c:493 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 1 PID: 30622 Comm: syz-executor7 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d596f740 ffffffff81d906e9 ffff8801d596fa20 0000000000000000 ffff8801cf2d2410 ffff8801d596f910 ffff8801cf2d2300 ffff8801d596f938 ffffffff8165e307 ffff8801d596f798 ffff8801d596f890 00000001d5a4e067 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 [] do_fcntl fs/fcntl.c:274 [inline] [] SYSC_fcntl fs/fcntl.c:372 [inline] [] SyS_fcntl+0x8fd/0xc70 fs/fcntl.c:357 [] entry_SYSCALL_64_fastpath+0x23/0xc6 sg_write: data in/out 901092476/192 bytes for SCSI command 0x1b-- guessing data in; program syz-executor4 not setting count and/or reply_len properly FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 30633 Comm: syz-executor7 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a7caf740 ffffffff81d906e9 ffff8801a7cafa20 0000000000000000 ffff8801cf860110 ffff8801a7caf910 ffff8801cf860000 ffff8801a7caf938 ffffffff8165e307 ffff8801a7caf798 ffff8801a7caf890 00000001d5a4e067 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 [] do_fcntl fs/fcntl.c:274 [inline] [] SYSC_fcntl fs/fcntl.c:372 [inline] [] SyS_fcntl+0x8fd/0xc70 fs/fcntl.c:357 [] entry_SYSCALL_64_fastpath+0x23/0xc6 loop_reread_partitions: partition scan of loop0 (2°]€fI¸Òæ¶Ì”B±!S,›ùDÏ') failed (rc=-13) sock: sock_set_timeout: `syz-executor4' (pid 30863) tries to set negative timeout loop_reread_partitions: partition scan of loop0 () failed (rc=-13) 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 sock: sock_set_timeout: `syz-executor7' (pid 30902) tries to set negative timeout binder: 30908:30909 ERROR: BC_REGISTER_LOOPER called without request sock: sock_set_timeout: `syz-executor4' (pid 30863) tries to set negative timeout sock: sock_set_timeout: `syz-executor7' (pid 30902) tries to set negative timeout binder: 30908:30915 BC_FREE_BUFFER u0000000000000000 no match binder: 30908:30915 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 30908:30915 BC_ACQUIRE_DONE uffffffffffffffff no match binder: 30908:30915 ERROR: BC_REGISTER_LOOPER called after BC_ENTER_LOOPER binder: 30915 RLIMIT_NICE not set binder: 30908:30915 unknown command 0 binder: 30908:30915 ioctl c0306201 2000a000 returned -22 binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 313, process died. binder: 30908:30909 ERROR: BC_REGISTER_LOOPER called without request binder: 30908:30923 BC_FREE_BUFFER u0000000000000000 no match binder: 30908:30923 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 30908:30923 BC_ACQUIRE_DONE uffffffffffffffff no match binder: 30908:30923 ERROR: BC_REGISTER_LOOPER called after BC_ENTER_LOOPER binder_alloc: 30908: binder_alloc_buf, no vma binder: 30908:30933 transaction failed 29189/-3, size 0-0 line 3130 binder: 30908:30923 got reply transaction with no transaction stack binder: 30908:30923 transaction failed 29201/-71, size 32-8 line 2923 binder: undelivered TRANSACTION_ERROR: 29189 netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. sg_write: data in/out 327644/32 bytes for SCSI command 0x4-- guessing data in; program syz-executor6 not setting count and/or reply_len properly binder: 31032:31041 BC_FREE_BUFFER u0000000000000000 no match binder: 31032:31041 IncRefs 0 refcount change on invalid ref -4 ret -22 binder: 31051:31052 ERROR: BC_REGISTER_LOOPER called without request binder: 31032:31053 BC_FREE_BUFFER u0000000000000000 no match binder: 31032:31053 BC_REQUEST_DEATH_NOTIFICATION death notification already set binder: 31032:31053 BC_DEAD_BINDER_DONE 0000000000000004 not found binder: 31032:31053 ERROR: BC_REGISTER_LOOPER called without request binder: 31051:31052 ioctl c018620b 20000fe8 returned -14 binder: 31051:31052 BC_FREE_BUFFER uffffffffffffffff no match binder: 31051:31052 got transaction with invalid offsets ptr binder: 31051:31052 transaction failed 29201/-14, size 72-8 line 3158 binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: 31051:31052 BC_FREE_BUFFER u0000000000000000 no match binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 321, process died. binder: 31051:31067 ERROR: BC_REGISTER_LOOPER called without request binder: 31051:31067 ioctl c0306201 2000afd0 returned -14 binder: 31051:31052 ioctl c018620b 20000fe8 returned -14 binder: 31051:31067 BC_FREE_BUFFER uffffffffffffffff no match binder: 31051:31067 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 31051:31067 got transaction to invalid handle binder: 31051:31067 transaction failed 29201/-22, size 72-8 line 3007 binder: 31051:31067 BC_FREE_BUFFER u0000000000000000 no match binder: 31032:31069 unknown command 0 binder: 31032:31069 ioctl c0306201 20003fd0 returned -22 binder: 31032:31073 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 31032 invalid dec weak, ref 318 desc 0 s 1 w 0 binder: 31032:31073 DecRefs 0 refcount change on invalid ref 4 ret -22 binder: 31032:31073 BC_CLEAR_DEATH_NOTIFICATION death notification cookie mismatch 0000000000000000 != fffffffffffffffe binder: 31032:31073 got reply transaction with no transaction stack binder: 31032:31073 transaction failed 29201/-71, size 0-48 line 2923 binder: 31032:31053 unknown command 0 binder: 31032:31053 ioctl c0306201 2000a000 returned -14 binder: 31032:31053 tried to acquire reference to desc 0, got 1 instead binder: 31032:31053 BC_REQUEST_DEATH_NOTIFICATION death notification already set binder: 31032:31073 BC_FREE_BUFFER u0000000000000000 no match binder: 31032:31073 IncRefs 0 refcount change on invalid ref -4 ret -22 binder: 31032:31053 BC_FREE_BUFFER u0000000000000000 no match binder: 31032:31053 BC_REQUEST_DEATH_NOTIFICATION death notification already set binder: 31032:31053 BC_DEAD_BINDER_DONE 0000000000000004 not found binder: 31032:31053 ERROR: BC_REGISTER_LOOPER called without request binder: 31032:31053 BC_CLEAR_DEATH_NOTIFICATION invalid ref 2 binder: 31032:31053 got reply transaction with no transaction stack binder: 31032:31053 transaction failed 29201/-71, size 72-40 line 2923 binder: 31032:31053 DecRefs 0 refcount change on invalid ref 2 ret -22 binder: 31032:31053 BC_REQUEST_DEATH_NOTIFICATION death notification already set FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 31114 Comm: syz-executor0 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a71e74e0 ffffffff81d906e9 ffff8801a71e77c0 0000000000000000 ffff8801cf861c10 ffff8801a71e76b0 ffff8801cf861b00 ffff8801a71e76d8 ffffffff8165e307 ffff880102408040 ffff8801a71e7630 00000001a7a01067 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 [] generic_perform_write+0x1dc/0x500 mm/filemap.c:2731 [] __generic_file_write_iter+0x348/0x570 mm/filemap.c:2866 [] generic_file_write_iter+0x2d5/0x600 mm/filemap.c:2894 [] new_sync_write fs/read_write.c:499 [inline] [] __vfs_write+0x4bf/0x680 fs/read_write.c:512 [] vfs_write+0x189/0x530 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 0 PID: 31115 Comm: syz-executor0 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cca674e0 ffffffff81d906e9 ffff8801cca677c0 0000000000000000 ffff8801cf861610 ffff8801cca676b0 ffff8801cf861500 ffff8801cca676d8 ffffffff8165e307 ffffed003994ceb2 ffff8801cca67630 00000001a8869067 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 [] generic_perform_write+0x1dc/0x500 mm/filemap.c:2731 [] __generic_file_write_iter+0x348/0x570 mm/filemap.c:2866 [] generic_file_write_iter+0x2d5/0x600 mm/filemap.c:2894 [] new_sync_write fs/read_write.c:499 [inline] [] __vfs_write+0x4bf/0x680 fs/read_write.c:512 [] vfs_write+0x189/0x530 fs/read_write.c:560 [] SYSC_write fs/read_write.c:607 [inline] [] SyS_write+0xd9/0x1b0 fs/read_write.c:599 [] entry_SYSCALL_64_fastpath+0x23/0xc6 binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 327 to 31051:31072 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 nla_parse: 8 callbacks suppressed netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'. device gre0 entered promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'. binder: 31260:31262 ERROR: BC_REGISTER_LOOPER called without request binder: 31261:31265 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 31260: binder_alloc_buf, no vma binder_alloc: 31261: binder_alloc_buf, no vma binder: 31261:31277 transaction failed 29189/-3, size 0-0 line 3130 binder: 31260:31276 transaction failed 29189/-3, size 0-52 line 3130 binder: 31260:31289 unknown command 1400526783 binder: 31260:31289 ioctl c0306201 20002fd0 returned -22 binder: 31260:31276 ioctl c0306201 20007000 returned -14 binder: BINDER_SET_CONTEXT_MGR already set binder: 31261:31298 ioctl 40046207 0 returned -16 FAULT_FLAG_ALLOW_RETRY missing 31 binder: 31261:31298 BC_ACQUIRE_DONE node 335 has no pending acquire request binder: 31261:31298 got reply transaction with no transaction stack binder: 31261:31298 transaction failed 29201/-71, size 48-40 line 2923 binder: 31260:31262 ioctl c0306201 20008fd0 returned -14 binder: 31260:31276 ERROR: BC_REGISTER_LOOPER called without request binder: BINDER_SET_CONTEXT_MGR already set binder: 31260:31262 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 31261:31298 ioctl 40046207 0 returned -16 binder_alloc: 31260: binder_alloc_buf, no vma binder: 31260:31262 transaction failed 29189/-3, size 56-52 line 3130 binder: 31260:31276 unknown command 1400526783 binder: 31260:31276 ioctl c0306201 20002fd0 returned -22 binder: 31261:31265 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 31261: binder_alloc_buf, no vma binder: 31261:31298 transaction failed 29189/-3, size 0-0 line 3130 binder: undelivered TRANSACTION_ERROR: 29189 binder: BINDER_SET_CONTEXT_MGR already set binder: 31261:31265 ioctl 40046207 0 returned -16 binder: undelivered TRANSACTION_ERROR: 29189 binder: 31261:31317 BC_ACQUIRE_DONE u0000000000000000 no match binder: 31261:31317 got reply transaction with no transaction stack binder: 31261:31317 transaction failed 29201/-71, size 48-40 line 2923 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: 31327:31330 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 31327:31330 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31330 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31339 BC_FREE_BUFFER u0000000000000000 no match binder: 31327:31339 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31339 BC_DEAD_BINDER_DONE 0000000000000004 not found binder: 31327:31339 ERROR: BC_REGISTER_LOOPER called without request binder: 31327:31339 BC_CLEAR_DEATH_NOTIFICATION invalid ref 2 binder: 31327:31339 got reply transaction with no transaction stack binder: 31327:31339 transaction failed 29201/-71, size 72-40 line 2923 binder: 31327:31339 DecRefs 0 refcount change on invalid ref 2 ret -22 binder: 31327:31339 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31362 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 31327:31362 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31367 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31362 BC_FREE_BUFFER u0000000000000000 no match binder: 31327:31362 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 31327:31362 BC_DEAD_BINDER_DONE 0000000000000004 not found binder: 31327:31362 ERROR: BC_REGISTER_LOOPER called without request binder: 31327:31362 BC_CLEAR_DEATH_NOTIFICATION invalid ref 2 binder: 31327:31362 got reply transaction with no transaction stack binder: 31327:31362 transaction failed 29201/-71, size 72-40 line 2923 binder: 31327:31367 unknown command 0 binder: 31327:31367 ioctl c0306201 20003fd0 returned -22 netlink: 11 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. : renamed from syz3 netlink: 5 bytes leftover after parsing attributes in process `syz-executor0'. CPU: 0 PID: 31285 Comm: syz-executor7 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d5da7870 ffffffff81d906e9 ffff8801d5da7b50 0000000000000000 ffff8801cf2d2290 ffff8801d5da7a40 ffff8801cf2d2180 ffff8801d5da7a68 ffffffff8165e307 ffff8801d5da78a0 ffffffff811b890d 0000000006eb7540 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:2783 [inline] [] handle_pte_fault mm/memory.c:3488 [inline] [] __handle_mm_fault mm/memory.c:3577 [inline] [] handle_mm_fault+0x1f82/0x2530 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_getrandom drivers/char/random.c:1899 [inline] [] SyS_getrandom+0x165/0x2a0 drivers/char/random.c:1880 [] entry_SYSCALL_64_fastpath+0x23/0xc6 netlink: 16 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor2'. 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 binder: 31438:31439 ioctl 40046205 0 returned -22 binder: 31438:31439 ERROR: BC_REGISTER_LOOPER called without request binder: 31438:31444 transaction failed 29201/-28, size 3791199683819586449-0 line 3130 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 binder: 31438:31444 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: 31438:31444 BC_FREE_BUFFER u0000000000000000 no match binder: 31438:31444 ioctl 40046205 0 returned -22 binder: 31438:31439 ERROR: BC_REGISTER_LOOPER called without request binder: 31438:31439 transaction failed 29201/-28, size 3791199683819586449-0 line 3130 binder: 31438:31439 BC_FREE_BUFFER u0000000000000000 no match binder: 31438:31439 BC_CLEAR_DEATH_NOTIFICATION death notification not active binder: 31438:31439 BC_REQUEST_DEATH_NOTIFICATION invalid ref 3 binder: 31438:31439 got reply transaction with bad transaction stack, transaction 351 has target 31438:0 binder: 31438:31439 transaction failed 29201/-71, size 32-16 line 2938 binder: 31438:31439 ioctl c0306201 20005fd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29201 binder: release 31438:31439 transaction 351 out, still active binder: unexpected work type, 4, not freed binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: send failed reply for transaction 351, target dead netlink: 6 bytes leftover after parsing attributes in process `syz-executor4'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=31476 comm=syz-executor4 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-executor3'. loop_reread_partitions: partition scan of loop0 (2°]€fI¸Òæ¶Ì”B±!S,›ùDÏ') failed (rc=-13) loop_reread_partitions: partition scan of loop0 () failed (rc=-13) binder: 31578:31579 ERROR: BC_REGISTER_LOOPER called without request binder: 31578:31586 ioctl 8904 20004ffc returned -22 binder: 31578:31614 ERROR: BC_REGISTER_LOOPER called without request binder: 31578:31626 ioctl 8904 20004ffc returned -22 device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode