===================================== [ BUG: bad unlock balance detected! ] 4.9.67-gf26d3c7 #106 Not tainted ------------------------------------- syz-executor7/28440 is trying to release lock ( mrt_lock) at: but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor7/28440: #0: (&p->lock){+.+.+.}, at: [] seq_read+0xdd/0x1290 fs/seq_file.c:178 stack backtrace: CPU: 0 PID: 28440 Comm: syz-executor7 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c622f8e8 ffffffff81d906e9 ffffffff849ae8f8 ffff8801cfb68000 ffffffff834dec54 ffffffff849ae8f8 ffff8801cfb68888 ffff8801c622f918 ffffffff812353f4 dffffc0000000000 ffffffff849ae8f8 00000000ffffffffCall 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: 28426:28441 ioctl 80044501 2000bfb1 returned -22 binder: undelivered TRANSACTION_ERROR: 29189 3501 3501 lowmem_reserve[]: 0 0 0 0 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 DMA32: 1*4kB (M) 1*8kB (M) 3*16kB (M) 3*32kB (M) 4*64kB (M) 3*128kB (M) 2*256kB (M) 2*512kB (M) 1*1024kB (M) 2*2048kB (M) 726*4096kB (M) = 2981148kB Normal: 2715*4kB (UME) 1487*8kB (UME) 1050*16kB (UME) 1592*32kB (UME) 1765*64kB (UME) 265*128kB (UME) 9*256kB (UME) 5*512kB (UM) 3*1024kB (UME) 5*2048kB (M) 646*4096kB (UM) = 2901572kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11304 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 binder: 28501:28506 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 28501 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 28501:28512 ioctl 40046207 0 returned -16 binder_alloc: 28501: binder_alloc_buf, no vma binder: 28501:28506 ERROR: BC_REGISTER_LOOPER called without request binder: 28501:28512 transaction failed 29189/-3, size 0-0 line 3130 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_COMPLETE binder: 28533:28534 ioctl 40046205 0 returned -22 binder: 28533:28534 ERROR: BC_REGISTER_LOOPER called without request binder: undelivered transaction 371, process died. binder: 28533:28534 unknown command 1400526783 binder: 28533:28534 ioctl c0306201 20002fd0 returned -22 binder: 28533:28534 ioctl c018620b 20000fe8 returned -14 binder: 28533:28534 ioctl c0306201 20005fd0 returned -14 binder: 28533:28534 ioctl c018620b 20000000 returned -14 binder: undelivered TRANSACTION_COMPLETE binder: 28533:28534 BC_FREE_BUFFER uffffffffffffffff no match binder: undelivered TRANSACTION_COMPLETE binder: 28533:28534 ioctl 40046205 6 returned -22 binder: 28533:28534 ioctl 40046205 0 returned -22 binder: undelivered transaction 377, process died. binder: 28533:28534 ERROR: BC_REGISTER_LOOPER called without request binder: 28533:28560 unknown command 0 binder: 28533:28560 ioctl c0306201 20002fd0 returned -22 binder: 28533:28560 got reply transaction with no transaction stack binder: 28533:28560 transaction failed 29201/-71, size 24-8 line 2923 binder: 28561:28568 got reply transaction with no transaction stack binder: 28561:28568 transaction failed 29201/-71, size 2-1144397507205 line 2923 binder: 28533:28543 ioctl c018620b 20000fe8 returned -14 binder: 28561:28575 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 28561:28575 got transaction to invalid handle binder: 28561:28575 transaction failed 29201/-22, size 64-32 line 3007 binder: 28533:28573 ioctl c018620b 20000000 returned -14 binder: release 28533:28543 transaction 381 out, still active binder: undelivered TRANSACTION_COMPLETE binder: send failed reply for transaction 381, target dead binder: undelivered TRANSACTION_ERROR: 29201 binder: 28561:28575 ioctl c0306201 20002fd0 returned -14 binder: 28561:28579 unknown command 0 binder: 28561:28579 ioctl c0306201 20004000 returned -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 28561:28575 ioctl 40046207 0 returned -16 binder: 28561:28575 Acquire 1 refcount change on invalid ref 1 ret -22 binder: 28561:28582 BC_INCREFS_DONE uffffffffffffffff no match binder: 28561:28582 got transaction to invalid handle binder: 28561:28582 transaction failed 29201/-22, size 40-16 line 3007 binder_alloc: 28561: binder_alloc_buf, no vma binder: 28561:28582 transaction failed 29189/-3, size 0-0 line 3130 binder: 28561:28582 ioctl c0306201 20002fd0 returned -14 binder: 28561:28575 got transaction to invalid handle binder: 28561:28575 transaction failed 29201/-22, size 64-32 line 3007 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 28561:28568 transaction 386 in, still active binder: send failed reply for transaction 386 to 28561:28575 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 9pnet_virtio: no channels available for device ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿH|§ÿ 9pnet_virtio: no channels available for device ÿH|§ device gre0 entered promiscuous mode IPVS: Creating netns size=2536 id=45 netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 28769 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d844f8c0 ffffffff81d906e9 ffff8801d844fba0 0000000000000000 ffff8801c6b35d90 ffff8801d844fa90 ffff8801c6b35c80 ffff8801d844fab8 ffffffff8165e307 0000000000000000 ffff8801d844fa10 00000001cdf06067 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: 28758 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d930f4a0 ffffffff81d906e9 ffff8801d930f780 0000000000000000 ffff8801c6b35d90 ffff8801d930f670 ffff8801c6b35c80 ffff8801d930f698 ffffffff8165e307 0000000000000000 ffff8801d930f5f0 00000001cdf06067 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_poll fs/select.c:983 [inline] [] SyS_poll+0x120/0x3f0 fs/select.c:971 [] entry_SYSCALL_64_fastpath+0x23/0xc6 FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 28748 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d9ac7830 ffffffff81d906e9 ffff8801d9ac7b10 0000000000000000 ffff8801c6b35d90 ffff8801d9ac7a00 ffff8801c6b35c80 ffff8801d9ac7a28 ffffffff8165e307 ffff8801db321400 ffff8801d9ac7980 00000001cdf06067 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: 0 PID: 28819 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801cd4df8c0 ffffffff81d906e9 ffff8801cd4dfba0 0000000000000000 ffff8801c7fc6710 ffff8801cd4dfa90 ffff8801c7fc6600 ffff8801cd4dfab8 ffffffff8165e307 0000000000000000 ffff8801cd4dfa10 00000001a4cd8067 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: 0 PID: 28769 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d844f830 ffffffff81d906e9 ffff8801d844fb10 0000000000000000 ffff8801c7fc6710 ffff8801d844fa00 ffff8801c7fc6600 ffff8801d844fa28 ffffffff8165e307 ffff8801db221400 ffff8801d844f980 00000001a4cd8067 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: 0 PID: 28733 Comm: syz-executor2 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c843f8c0 ffffffff81d906e9 ffff8801c843fba0 0000000000000000 ffff8801c7fc6710 ffff8801c843fa90 ffff8801c7fc6600 ffff8801c843fab8 ffffffff8165e307 0000000000000000 ffff8801c843fa10 00000001a4cd8067 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 sg_write: data in/out 327644/32 bytes for SCSI command 0x4-- guessing data in; program syz-executor0 not setting count and/or reply_len properly qtaguid: iface_stat: create6(lo): no inet dev device lo left promiscuous mode 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 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 binder: 29072:29073 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 29072:29073 BC_INCREFS_DONE u000000002011a000 no match binder: 29072:29073 got transaction with invalid parent offset or type binder: 29072:29073 transaction failed 29201/-22, size 32-24 line 3253 nla_parse: 6 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. binder: 29072:29073 got transaction with unaligned buffers size, 58534 binder: 29072:29073 transaction failed 29201/-22, size 0-40 line 3175 binder_alloc: binder_alloc_mmap_handler: 29072 2011a000-2051a000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 29072:29073 ioctl 40046207 0 returned -16 binder: 29072:29093 unknown command 0 binder: 29072:29093 ioctl c0306201 20004000 returned -22 binder_alloc: 29072: binder_alloc_buf, no vma binder: 29072:29073 transaction failed 29189/-3, size 0-40 line 3130 binder: undelivered TRANSACTION_ERROR: 29201 netlink: 1 bytes leftover after parsing attributes in process `syz-executor4'. binder: 29170:29171 got transaction to invalid handle binder: 29170:29171 transaction failed 29201/-22, size 0-0 line 3007 binder: 29170:29177 got transaction to invalid handle binder: 29170:29177 transaction failed 29201/-22, size 0-0 line 3007 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 device gre0 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=7127 sclass=netlink_route_socket pig=29256 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=29259 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=7127 sclass=netlink_route_socket pig=29265 comm=syz-executor4 netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. device gre0 entered promiscuous mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. device gre0 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 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_alloc: binder_alloc_mmap_handler: 29635 20000000-20002000 already mapped failed -16 IPVS: Creating netns size=2536 id=46 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 sock: sock_set_timeout: `syz-executor7' (pid 29821) tries to set negative timeout IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! IPVS: length: 9 != 8 IPVS: length: 9 != 8 device gre0 entered promiscuous mode mmap: syz-executor5 (30030): VmData 2293760 exceed data ulimit 0. Update limits or use boot option ignore_rlimit_data. loop_reread_partitions: partition scan of loop0 (2°]€fI¸Òæ¶Ì”B±!S,›ùDÏ') failed (rc=-13) loop: Write error at byte offset 18446744073709547520, length 512. blk_update_request: I/O error, dev loop0, sector 0 Buffer I/O error on dev loop0, logical block 0, lost async page write VFS: Dirty inode writeback failed for block device loop0 (err=-5). loop_reread_partitions: partition scan of loop0 () failed (rc=-13) sg_write: data in/out 760718663/119 bytes for SCSI command 0xa2-- guessing data in; program syz-executor4 not setting count and/or reply_len properly device gre0 entered promiscuous mode FAULT_FLAG_ALLOW_RETRY missing 30 CPU: 1 PID: 30269 Comm: syz-executor1 Not tainted 4.9.67-gf26d3c7 #106 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801a666f8e0 ffffffff81d906e9 ffff8801a666fbc0 0000000000000000 ffff8801c7fc7790 ffff8801a666fab0 ffff8801c7fc7680 ffff8801a666fad8 ffffffff8165e307 ffff8801db321ce8 ffff8801a666fa30 00000001c6e2b067 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 [] strndup_user+0x28/0xb0 mm/util.c:160 [] SYSC_request_key security/keys/keyctl.c:186 [inline] [] SyS_request_key+0xd6/0x2d0 security/keys/keyctl.c:158 [] entry_SYSCALL_64_fastpath+0x23/0xc6 binder: 30298:30304 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 30298: binder_alloc_buf size 17179869504 failed, no address space binder_alloc: allocated: 0 (num: 0 largest: 0), free: 8192 (num: 1 largest: 8192) binder: 30298:30304 transaction failed 29201/-28, size 17179869183-320 line 3130 binder: 30298:30304 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: BINDER_SET_CONTEXT_MGR already set binder: 30298:30316 ioctl 40046207 0 returned -16 binder_alloc: 30298: binder_alloc_buf, no vma binder: 30298:30322 transaction failed 29189/-3, size 17179869183-320 line 3130 binder: 30298:30316 ERROR: BC_REGISTER_LOOPER called without request binder: 30298:30316 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0