====================================================== WARNING: possible circular locking dependency detected 4.14.150 #0 Not tainted ------------------------------------------------------ kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env syz-executor.4/30392 is trying to acquire lock: (&sig->cred_guard_mutex){+.+.}, at: [] proc_pid_attr_write+0x163/0x290 fs/proc/base.c:2585 but task is already holding lock: (&pipe->mutex/1){+.+.}, at: [] pipe_lock_nested fs/pipe.c:67 [inline] (&pipe->mutex/1){+.+.}, at: [] pipe_lock+0x63/0x80 fs/pipe.c:75 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&pipe->mutex/1){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 protocol 88fb is buggy, dev hsr_slave_0 pipe_lock_nested fs/pipe.c:67 [inline] pipe_lock+0x63/0x80 fs/pipe.c:75 iter_file_splice_write+0x15e/0xad0 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+0xd92/0x1430 fs/splice.c:1382 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #2 (sb_writers#4){.+.+} protocol 88fb is buggy, dev hsr_slave_1 : lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x1ae/0x2f0 fs/super.c:1363 sb_start_write include/linux/fs.h:1548 [inline] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:25 ovl_create_object+0x79/0x1e0 fs/overlayfs/dir.c:538 kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' ovl_create+0x28/0x30 fs/overlayfs/dir.c:563 lookup_open+0x11a6/0x1860 fs/namei.c:3240 do_last fs/namei.c:3331 [inline] path_openat+0xfca/0x3f70 fs/namei.c:3566 do_filp_open+0x18e/0x250 fs/namei.c:3600 do_sys_open+0x2c5/0x430 fs/open.c:1084 SYSC_open fs/open.c:1102 [inline] SyS_open fs/open.c:1097 [inline] SYSC_creat fs/open.c:1142 [inline] SyS_creat+0x27/0x30 fs/open.c:1140 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #1 9pnet: Insufficient options for proto=fd (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 down_read+0x3b/0xb0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:728 [inline] do_last fs/namei.c:3330 [inline] path_openat+0x191c/0x3f70 fs/namei.c:3566 do_filp_open+0x18e/0x250 fs/namei.c:3600 do_open_execat+0xe7/0x4a0 fs/exec.c:849 do_execveat_common.isra.0+0x6d5/0x1dd0 fs/exec.c:1740 do_execve fs/exec.c:1847 [inline] SYSC_execve fs/exec.c:1928 [inline] SyS_execve+0x39/0x50 fs/exec.c:1923 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (&sig->cred_guard_mutex){+.+.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 kobject: 'bridge1' (ffff88804afb1a70): kobject_add_internal: parent: 'net', set: 'devices' __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_interruptible_nested+0x16/0x20 kernel/locking/mutex.c:930 proc_pid_attr_write+0x163/0x290 fs/proc/base.c:2585 __vfs_write+0x105/0x6b0 fs/read_write.c:480 kobject: 'bridge1' (ffff88804afb1a70): kobject_uevent_env __kernel_write+0xfc/0x370 fs/read_write.c:501 write_pipe_buf+0x148/0x1c0 fs/splice.c:797 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x348/0x780 fs/splice.c:626 splice_from_pipe+0xf0/0x150 fs/splice.c:661 default_file_splice_write+0x3c/0x80 fs/splice.c:809 kobject: 'bridge1' (ffff88804afb1a70): fill_kobj_path: path = '/devices/virtual/net/bridge1' do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0xd92/0x1430 fs/splice.c:1382 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Chain exists of: &sig->cred_guard_mutex --> sb_writers#4 --> kobject: 'queues' (ffff88804f232348): kobject_add_internal: parent: 'bridge1', set: '' &pipe->mutex/1 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pipe->mutex/1); lock(sb_writers#4); lock(&pipe->mutex/1); lock(&sig->cred_guard_mutex); *** DEADLOCK *** 2 locks held by syz-executor.4/30392: #0: (sb_writers#7){.+.+}, at: [] file_start_write include/linux/fs.h:2707 [inline] #0: (sb_writers#7){.+.+}, at: [] do_splice fs/splice.c:1146 [inline] #0: (sb_writers#7){.+.+}, at: [] SYSC_splice fs/splice.c:1402 [inline] #0: (sb_writers#7){.+.+}, at: [] SyS_splice+0xf3a/0x1430 fs/splice.c:1382 #1: kobject: 'queues' (ffff88804f232348): kobject_uevent_env (&pipe->mutex/1){+.+.}, at: [] pipe_lock_nested fs/pipe.c:67 [inline] (&pipe->mutex/1){+.+.}, at: [] pipe_lock+0x63/0x80 fs/pipe.c:75 stack backtrace: CPU: 1 PID: 30392 Comm: syz-executor.4 Not tainted 4.14.150 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'queues' (ffff88804f232348): kobject_uevent_env: filter function caused the event to drop! Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 EXT4-fs warning (device sda1): ext4_group_extend:1770: can't read last block, resize aborted kobject: 'rx-0' (ffff88808ed69010): kobject_add_internal: parent: 'queues', set: 'queues' lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 kobject: 'rx-0' (ffff88808ed69010): kobject_uevent_env __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 kobject: 'rx-0' (ffff88808ed69010): fill_kobj_path: path = '/devices/virtual/net/bridge1/queues/rx-0' mutex_lock_interruptible_nested+0x16/0x20 kernel/locking/mutex.c:930 devpts: called with bogus options proc_pid_attr_write+0x163/0x290 fs/proc/base.c:2585 __vfs_write+0x105/0x6b0 fs/read_write.c:480 __kernel_write+0xfc/0x370 fs/read_write.c:501 write_pipe_buf+0x148/0x1c0 fs/splice.c:797 kobject: 'tx-0' (ffff88804d6a1858): kobject_add_internal: parent: 'queues', set: 'queues' splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x348/0x780 fs/splice.c:626 splice_from_pipe+0xf0/0x150 fs/splice.c:661 default_file_splice_write+0x3c/0x80 fs/splice.c:809 kobject: 'tx-0' (ffff88804d6a1858): kobject_uevent_env do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0xd92/0x1430 fs/splice.c:1382 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459f39 RSP: 002b:00007f2ea3098c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459f39 RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 000000000075bfc8 R08: 0000000000010005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2ea30996d4 R13: 00000000004c9c73 R14: 00000000004e0910 R15: 00000000ffffffff kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'tx-0' (ffff88804d6a1858): fill_kobj_path: path = '/devices/virtual/net/bridge1/queues/tx-0' kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'brif' (ffff88808f6df500): kobject_add_internal: parent: 'bridge1', set: '' kobject: '9p-14' (ffff88804d897610): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'batman_adv' (ffff88808f6df200): kobject_add_internal: parent: 'bridge1', set: '' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'veth4' (ffff8880546133b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'veth4' (ffff8880546133b0): kobject_uevent_env kobject: '9p-14' (ffff88804d897610): kobject_uevent_env kobject: 'veth4' (ffff8880546133b0): fill_kobj_path: path = '/devices/virtual/net/veth4' kobject: '9p-14' (ffff88804d897610): fill_kobj_path: path = '/devices/virtual/bdi/9p-14' kobject: 'queues' (ffff88809c186c48): kobject_add_internal: parent: 'veth4', set: '' kobject: '9p-14' (ffff88804d897610): kobject_uevent_env kobject: 'queues' (ffff88809c186c48): kobject_uevent_env kobject: '9p-14' (ffff88804d897610): fill_kobj_path: path = '/devices/virtual/bdi/9p-14' kobject: 'queues' (ffff88809c186c48): kobject_uevent_env: filter function caused the event to drop! kobject: '9p-14' (ffff88804d897610): kobject_cleanup, parent (null) kobject: '9p-14' (ffff88804d897610): calling ktype release kobject: 'rx-0' (ffff8880953c3c10): kobject_add_internal: parent: 'queues', set: 'queues' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: '9p-14': free name kobject: 'rx-0' (ffff8880953c3c10): kobject_uevent_env kobject: 'rx-0' (ffff8880953c3c10): fill_kobj_path: path = '/devices/virtual/net/veth4/queues/rx-0' kobject: 'tx-0' (ffff88808c20ba98): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808c20ba98): kobject_uevent_env kobject: 'tx-0' (ffff88808c20ba98): fill_kobj_path: path = '/devices/virtual/net/veth4/queues/tx-0' kobject: 'batman_adv' (ffff8880a5496900): kobject_add_internal: parent: 'veth4', set: '' kobject: 'veth5' (ffff888054611370): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth5' (ffff888054611370): kobject_uevent_env kobject: 'veth5' (ffff888054611370): fill_kobj_path: path = '/devices/virtual/net/veth5' kobject: 'queues' (ffff88809c186848): kobject_add_internal: parent: 'veth5', set: '' kobject: 'queues' (ffff88809c186848): kobject_uevent_env kobject: 'queues' (ffff88809c186848): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff888098d1d0d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff888098d1d0d0): kobject_uevent_env kobject: 'rx-0' (ffff888098d1d0d0): fill_kobj_path: path = '/devices/virtual/net/veth5/queues/rx-0' kobject: 'tx-0' (ffff8880836592d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880836592d8): kobject_uevent_env kobject: 'tx-0' (ffff8880836592d8): fill_kobj_path: path = '/devices/virtual/net/veth5/queues/tx-0' kobject: 'batman_adv' (ffff888086b73400): kobject_add_internal: parent: 'veth5', set: '' bridge1: port 1(veth5) entered blocking state bridge1: port 1(veth5) entered disabled state kobject: 'brport' (ffff888091c18150): kobject_add_internal: parent: 'veth5', set: '' device veth5 entered promiscuous mode kobject: 'brport' (ffff888091c18150): kobject_uevent_env kobject: 'brport' (ffff888091c18150): kobject_uevent_env: filter function caused the event to drop! netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'veth6' (ffff88800b29e630): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth6' (ffff88800b29e630): kobject_uevent_env kobject: 'veth6' (ffff88800b29e630): fill_kobj_path: path = '/devices/virtual/net/veth6' kobject: 'queues' (ffff88809c186048): kobject_add_internal: parent: 'veth6', set: '' kobject: 'queues' (ffff88809c186048): kobject_uevent_env kobject: 'queues' (ffff88809c186048): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880867ccb50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880867ccb50): kobject_uevent_env kobject: 'rx-0' (ffff8880867ccb50): fill_kobj_path: path = '/devices/virtual/net/veth6/queues/rx-0' kobject: 'tx-0' (ffff888051a905d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'tx-0' (ffff888051a905d8): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff888051a905d8): fill_kobj_path: path = '/devices/virtual/net/veth6/queues/tx-0' kobject: 'batman_adv' (ffff88808b135e00): kobject_add_internal: parent: 'veth6', set: '' kobject: 'veth7' (ffff88804d8d85f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth7' (ffff88804d8d85f0): kobject_uevent_env kobject: 'veth7' (ffff88804d8d85f0): fill_kobj_path: path = '/devices/virtual/net/veth7' kobject: 'queues' (ffff888092dc4b48): kobject_add_internal: parent: 'veth7', set: '' kobject: 'queues' (ffff888092dc4b48): kobject_uevent_env kobject: 'queues' (ffff888092dc4b48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88805e9c9a90): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88805e9c9a90): kobject_uevent_env kobject: 'rx-0' (ffff88805e9c9a90): fill_kobj_path: path = '/devices/virtual/net/veth7/queues/rx-0' kobject: 'tx-0' (ffff888051a90ad8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff888051a90ad8): kobject_uevent_env kobject: 'tx-0' (ffff888051a90ad8): fill_kobj_path: path = '/devices/virtual/net/veth7/queues/tx-0' kobject: 'batman_adv' (ffff88809ffd4c00): kobject_add_internal: parent: 'veth7', set: '' bridge1: port 2(veth7) entered blocking state bridge1: port 2(veth7) entered disabled state kobject: 'brport' (ffff88805708d7d0): kobject_add_internal: parent: 'veth7', set: '' device veth7 entered promiscuous mode kobject: 'brport' (ffff88805708d7d0): kobject_uevent_env kobject: 'brport' (ffff88805708d7d0): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' selinux_nlmsg_perm: 22 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30455 comm=syz-executor.4 kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env audit: type=1400 audit(1572187907.502:946): avc: denied { map } for pid=30487 comm="syz-executor.4" path="socket:[252961]" dev="sockfs" ino=252961 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=unix_stream_socket permissive=1 kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' net_ratelimit: 6 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env netlink: 14 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 14 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880860ba560): kobject_uevent_env kobject: 'loop0' (ffff8880860ba560): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 9pnet: p9_fd_create_tcp (30685): problem connecting socket to -27.0.0.1 9pnet: p9_fd_create_tcp (30687): problem connecting socket to -27.0.0.1 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' selinux_nlmsg_perm: 66 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=30763 comm=syz-executor.4 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a8b7e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a8b7e0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' net_ratelimit: 4 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff8880a6eb0ad0): kobject_uevent_env kobject: 'loop2' (ffff8880a494e5e0): kobject_uevent_env kobject: 'kvm' (ffff8880a6eb0ad0): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a494e5e0): fill_kobj_path: path = '/devices/virtual/block/loop2'