====================================================== WARNING: possible circular locking dependency detected 4.15.0-rc2+ #213 Not tainted ------------------------------------------------------ syz-executor1/21720 is trying to acquire lock: (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000695dd21d>] get_online_cpus include/linux/cpu.h:117 [inline] (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000695dd21d>] lru_add_drain_all+0xe/0x20 mm/swap.c:729 but task is already holding lock: (&sb->s_type->i_mutex_key#10){++++}, at: [<00000000d9e831e1>] inode_lock include/linux/fs.h:713 [inline] (&sb->s_type->i_mutex_key#10){++++}, at: [<00000000d9e831e1>] shmem_add_seals+0x197/0x1060 mm/shmem.c:2768 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&sb->s_type->i_mutex_key#10){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 down_write+0x87/0x120 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:713 [inline] generic_file_write_iter+0xdc/0x7a0 mm/filemap.c:3289 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x531/0x7f0 fs/read_write.c:653 do_iter_write+0x15a/0x540 fs/read_write.c:932 vfs_iter_write+0x77/0xb0 fs/read_write.c:945 iter_file_splice_write+0x7db/0xf30 fs/splice.c:749 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x7d5/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #5 (&pipe->mutex/1){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 pipe_lock_nested fs/pipe.c:67 [inline] pipe_lock+0x56/0x70 fs/pipe.c:75 iter_file_splice_write+0x264/0xf30 fs/splice.c:699 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x7d5/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #4 (sb_writers){.+.+}: inode_lock include/linux/fs.h:713 [inline] handle_create+0x30c/0x760 drivers/base/devtmpfs.c:219 handle drivers/base/devtmpfs.c:373 [inline] devtmpfsd+0x3b4/0x4b0 drivers/base/devtmpfs.c:399 kthread+0x37a/0x440 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 0xffffffffffffffff -> #3 ((completion)&req.done){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 complete_acquire include/linux/completion.h:40 [inline] __wait_for_common kernel/sched/completion.c:109 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0xcb/0x7b0 kernel/sched/completion.c:144 devtmpfs_create_node+0x32b/0x4a0 drivers/base/devtmpfs.c:115 device_add+0x120f/0x1640 drivers/base/core.c:1824 device_create_groups_vargs+0x1f3/0x250 drivers/base/core.c:2430 device_create_vargs drivers/base/core.c:2470 [inline] device_create+0xda/0x110 drivers/base/core.c:2506 msr_device_create+0x26/0x40 arch/x86/kernel/msr.c:188 cpuhp_invoke_callback+0x2ea/0x1d20 kernel/cpu.c:182 cpuhp_thread_fun+0x48e/0x7e0 kernel/cpu.c:571 smpboot_thread_fn+0x450/0x7c0 kernel/smpboot.c:164 kthread+0x37a/0x440 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 -> #2 (cpuhp_state-up){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 cpuhp_lock_acquire kernel/cpu.c:85 [inline] cpuhp_invoke_ap_callback kernel/cpu.c:605 [inline] cpuhp_issue_call+0x1e5/0x520 kernel/cpu.c:1495 __cpuhp_setup_state_cpuslocked+0x282/0x600 kernel/cpu.c:1642 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state include/linux/cpuhotplug.h:201 [inline] page_writeback_init+0x4d/0x71 mm/page-writeback.c:2081 pagecache_init+0x48/0x4f mm/filemap.c:977 start_kernel+0x6bc/0x74f init/main.c:690 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #1 (cpuhp_state_mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 __cpuhp_setup_state_cpuslocked+0x5b/0x600 kernel/cpu.c:1617 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state_nocalls include/linux/cpuhotplug.h:229 [inline] kvm_guest_init+0x1f3/0x20f arch/x86/kernel/kvm.c:528 setup_arch+0x17e8/0x1a02 arch/x86/kernel/setup.c:1266 start_kernel+0xa5/0x74f init/main.c:530 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #0 (cpu_hotplug_lock.rw_sem){++++}: check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:293 get_online_cpus include/linux/cpu.h:117 [inline] lru_add_drain_all+0xe/0x20 mm/swap.c:729 shmem_wait_for_pins mm/shmem.c:2672 [inline] shmem_add_seals+0x3df/0x1060 mm/shmem.c:2780 shmem_fcntl+0xfe/0x130 mm/shmem.c:2815 do_fcntl+0x73e/0x1160 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xdc/0x120 fs/fcntl.c:448 entry_SYSCALL_64_fastpath+0x1f/0x96 other info that might help us debug this: Chain exists of: cpu_hotplug_lock.rw_sem --> &pipe->mutex/1 --> &sb->s_type->i_mutex_key#10 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#10); lock(&pipe->mutex/1); lock(&sb->s_type->i_mutex_key#10); lock(cpu_hotplug_lock.rw_sem); *** DEADLOCK *** 1 lock held by syz-executor1/21720: #0: (&sb->s_type->i_mutex_key#10){++++}, at: [<00000000d9e831e1>] inode_lock include/linux/fs.h:713 [inline] #0: (&sb->s_type->i_mutex_key#10){++++}, at: [<00000000d9e831e1>] shmem_add_seals+0x197/0x1060 mm/shmem.c:2768 stack backtrace: CPU: 1 PID: 21720 Comm: syz-executor1 Not tainted 4.15.0-rc2+ #213 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_circular_bug+0x42d/0x610 kernel/locking/lockdep.c:1271 check_prev_add+0x666/0x15f0 kernel/locking/lockdep.c:1914 check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:293 get_online_cpus include/linux/cpu.h:117 [inline] lru_add_drain_all+0xe/0x20 mm/swap.c:729 shmem_wait_for_pins mm/shmem.c:2672 [inline] shmem_add_seals+0x3df/0x1060 mm/shmem.c:2780 shmem_fcntl+0xfe/0x130 mm/shmem.c:2815 do_fcntl+0x73e/0x1160 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xdc/0x120 fs/fcntl.c:448 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f38e92a0c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 0000000000452a39 RDX: 0000000000000009 RSI: 0000000000000409 RDI: 0000000000000023 RBP: 0000000000000044 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee700 R13: 00000000ffffffff R14: 00007f38e92a16d4 R15: 0000000000000001 sctp: [Deprecated]: syz-executor3 (pid 21741) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor3 (pid 21770) Use of int in maxseg socket option. Use struct sctp_assoc_value instead RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? device gre0 entered promiscuous mode encrypted_key: insufficient parameters specified device gre0 entered promiscuous mode encrypted_key: insufficient parameters specified nla_parse: 2 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'. encrypted_key: insufficient parameters specified netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified xprt_adjust_timeout: rq_timeout = 0! encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified xprt_adjust_timeout: rq_timeout = 0! encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified SELinux: unrecognized netlink message: protocol=0 nlmsg_type=112 sclass=netlink_route_socket pig=22052 comm=security sock: process `syz-executor5' is using obsolete setsockopt SO_BSDCOMPAT SELinux: unrecognized netlink message: protocol=0 nlmsg_type=112 sclass=netlink_route_socket pig=22052 comm=security encrypted_key: insufficient parameters specified binder: 22116:22119 BC_FREE_BUFFER u0000000000000000 no match encrypted_key: insufficient parameters specified binder: 22116:22137 BC_FREE_BUFFER u0000000000000000 no match encrypted_key: insufficient parameters specified binder: 22189:22197 DecRefs 0 refcount change on invalid ref 268435456 ret -22 binder: 22189:22197 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 22189:22197 BC_INCREFS_DONE node 130 has no pending increfs request netlink: 22 bytes leftover after parsing attributes in process `syz-executor4'. binder: 22189:22197 ERROR: BC_REGISTER_LOOPER called without request encrypted_key: insufficient parameters specified binder: 22189:22197 BC_INCREFS_DONE u0000000000000000 node 130 cookie mismatch 0000000000000002 != 0000000000000000 binder: 22189:22202 BC_INCREFS_DONE u0000000000000000 node 130 cookie mismatch 0000000000000003 != 0000000000000000 binder: 22189:22202 got transaction to invalid handle binder: 22189:22202 transaction failed 29201/-22, size 40-16 line 2775 binder: 22189:22202 transaction failed 29201/-28, size 0-26302952888430444 line 2890 netlink: 2 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 22 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor4'. binder: 22189:22202 DecRefs 0 refcount change on invalid ref 268435456 ret -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 22189:22219 ioctl 40046207 0 returned -16 binder: 22189:22202 BC_INCREFS_DONE u0000000000000000 no match SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=22191 comm=syz-executor1 binder: 22189:22202 ERROR: BC_REGISTER_LOOPER called without request binder: 22189:22202 BC_INCREFS_DONE u0000000000000000 no match binder: 22189:22202 BC_CLEAR_DEATH_NOTIFICATION death notification not active binder: 22189:22202 got transaction to invalid handle binder: 22189:22202 transaction failed 29201/-22, size 0-24 line 2775 binder: 22189:22202 BC_INCREFS_DONE u0000000000000000 no match binder: 22189:22202 got transaction to invalid handle binder: 22189:22202 transaction failed 29201/-22, size 40-16 line 2775 binder_alloc: 22189: binder_alloc_buf, no vma binder: 22189:22202 transaction failed 29189/-3, size 0-26302952888430444 line 2890 binder: 22189:22197 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 22189:22197 got transaction to invalid handle binder: 22189:22197 transaction failed 29201/-22, size 0-24 line 2775 binder: 22189:22197 ioctl c0306201 2000efd0 returned -14 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 kauditd_printk_skb: 191 callbacks suppressed audit: type=1400 audit(1512798786.323:3706): avc: denied { map } for pid=22284 comm="syz-executor2" path="/dev/ptmx" dev="devtmpfs" ino=8810 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:ptmx_t:s0 tclass=chr_file permissive=1 devpts: called with bogus options devpts: called with bogus options device gre0 entered promiscuous mode device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready sctp: [Deprecated]: syz-executor7 (pid 22364) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead device lo left promiscuous mode device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready device lo left promiscuous mode futex_wake_op: syz-executor7 tries to shift op by 4095; fix this program futex_wake_op: syz-executor7 tries to shift op by 4095; fix this program netlink: 13 bytes leftover after parsing attributes in process `syz-executor7'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=190 sclass=netlink_route_socket pig=22456 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=190 sclass=netlink_route_socket pig=22469 comm=syz-executor1 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready sg_write: data in/out 822404280/197 bytes for SCSI command 0x12-- guessing data in; program syz-executor1 not setting count and/or reply_len properly sg_write: data in/out 262364/221 bytes for SCSI command 0xff-- guessing data in; program syz-executor1 not setting count and/or reply_len properly sg_write: data in/out 822404280/197 bytes for SCSI command 0x12-- guessing data in; program syz-executor1 not setting count and/or reply_len properly futex_wake_op: syz-executor3 tries to shift op by 4095; fix this program sg_write: data in/out 262364/221 bytes for SCSI command 0xff-- guessing data in; program syz-executor1 not setting count and/or reply_len properly futex_wake_op: syz-executor3 tries to shift op by 4095; fix this program audit: type=1401 audit(1512798788.910:3707): op=fscreate invalid_context=280000000000000005000000000000000800000000000000000000000000000006000000000000 audit: type=1401 audit(1512798788.995:3708): op=fscreate invalid_context=280000000000000005000000000000000800000000000000000000000000000006000000000000 audit: type=1326 audit(1512798789.765:3709): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1512798789.766:3710): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=2 compat=0 ip=0x40cd71 code=0x7ffc0000 audit: type=1326 audit(1512798789.766:3711): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 nla_parse: 9 callbacks suppressed netlink: 9 bytes leftover after parsing attributes in process `syz-executor2'. A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. audit: type=1326 audit(1512798789.766:3712): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1512798789.766:3713): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=257 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1512798789.766:3714): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x7ffc0000 audit: type=1326 audit(1512798789.766:3715): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23108 comm="syz-executor3" exe="/root/syz-executor3" sig=0 arch=c000003e syscall=16 compat=0 ip=0x452a39 code=0x7ffc0000 netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. device gre0 entered promiscuous mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 23584 Comm: syz-executor0 Not tainted 4.15.0-rc2+ #213 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3371 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3545 ptlock_alloc+0x24/0x70 mm/memory.c:4685 ptlock_init include/linux/mm.h:1790 [inline] pgtable_page_ctor include/linux/mm.h:1824 [inline] pte_alloc_one+0x59/0x100 arch/x86/mm/pgtable.c:32 do_huge_pmd_anonymous_page+0xc23/0x1b00 mm/huge_memory.c:689 create_huge_pmd mm/memory.c:3828 [inline] __handle_mm_fault+0x1b9f/0x3e20 mm/memory.c:4031 handle_mm_fault+0x334/0x8d0 mm/memory.c:4097 __do_page_fault+0x5c9/0xc90 arch/x86/mm/fault.c:1429 do_page_fault+0xee/0x720 arch/x86/mm/fault.c:1504 page_fault+0x22/0x30 arch/x86/entry/entry_64.S:1094 RIP: 0010:fault_in_pages_readable include/linux/pagemap.h:601 [inline] RIP: 0010:iov_iter_fault_in_readable+0x1a7/0x410 lib/iov_iter.c:421 RSP: 0018:ffff8801cb0ff770 EFLAGS: 00010246 RAX: 0000000000010000 RBX: 0000000020012fb7 RCX: ffffffff8250b491 RDX: 000000000000013f RSI: ffffc90001e29000 RDI: ffff8801cb0ffd88 RBP: ffff8801cb0ff850 R08: 0000000000000001 R09: 1ffff1003961fea8 R10: ffff8801c6d16440 R11: ffffed003961ffb1 R12: 1ffff1003961fef1 R13: ffff8801cb0ff828 R14: 0000000000000000 R15: ffff8801cb0ffd80 generic_perform_write+0x200/0x600 mm/filemap.c:3129 __generic_file_write_iter+0x366/0x5b0 mm/filemap.c:3264 generic_file_write_iter+0x399/0x7a0 mm/filemap.c:3292 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x531/0x7f0 fs/read_write.c:653 do_iter_write+0x15a/0x540 fs/read_write.c:932 vfs_writev+0x18a/0x340 fs/read_write.c:977 do_writev+0xfc/0x2a0 fs/read_write.c:1012 SYSC_writev fs/read_write.c:1085 [inline] SyS_writev+0x27/0x30 fs/read_write.c:1082 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x452a39 RSP: 002b:00007f379b208c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f379b208aa0 RCX: 0000000000452a39 RDX: 0000000000000001 RSI: 0000000020003fd8 RDI: 0000000000000014 RBP: 00007f379b208a90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b75fb R13: 00007f379b208bc8 R14: 00000000004b75fb R15: 0000000000000000 device gre0 entered promiscuous mode kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read binder: 23858:23863 ERROR: BC_REGISTER_LOOPER called without request binder: 23863 RLIMIT_NICE not set binder: 23863 RLIMIT_NICE not set netlink: 15 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 15 bytes leftover after parsing attributes in process `syz-executor4'. binder: release 23858:23863 transaction 139 in, still active binder: send failed reply for transaction 139 to 23858:23873 binder: undelivered TRANSACTION_COMPLETE binder: 23858:23863 ERROR: BC_REGISTER_LOOPER called without request binder: 23863 RLIMIT_NICE not set binder: 23863 RLIMIT_NICE not set binder: undelivered TRANSACTION_ERROR: 29189 binder: release 23858:23863 transaction 141 in, still active binder: send failed reply for transaction 141 to 23858:23873 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 sctp: [Deprecated]: syz-executor2 (pid 23943) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor2 (pid 23943) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Invalid ioctl QAT: Invalid ioctl netlink: 1 bytes leftover after parsing attributes in process `syz-executor2'. QAT: Invalid ioctl QAT: Invalid ioctl