INFO: task syz-executor.4:13934 blocked for more than 143 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27968 pid:13934 ppid: 426 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 sock_ioctl+0x537/0x640 net/socket.c:1159 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f1e8587b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000020000580 RSI: 00000000000089f1 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe8eda97af R14: 00007f1e8587b300 R15: 0000000000022000 INFO: task syz-executor.4:13938 blocked for more than 143 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27648 pid:13938 ppid: 426 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 sock_ioctl+0x537/0x640 net/socket.c:1159 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f1e8585a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000020000580 RSI: 00000000000089f2 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe8eda97af R14: 00007f1e8585a300 R15: 0000000000022000 INFO: task syz-executor.4:13940 blocked for more than 143 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27664 pid:13940 ppid: 426 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 sock_ioctl+0x537/0x640 net/socket.c:1159 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f1e85839188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665f9 RDX: 0000000020000580 RSI: 00000000000089f2 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007ffe8eda97af R14: 00007f1e85839300 R15: 0000000000022000 INFO: task syz-executor.4:13956 blocked for more than 144 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27912 pid:13956 ppid: 426 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 sock_ioctl+0x537/0x640 net/socket.c:1159 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f1e85818188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665f9 RDX: 0000000020000580 RSI: 00000000000089f1 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 R13: 00007ffe8eda97af R14: 00007f1e85818300 R15: 0000000000022000 INFO: task syz-executor.3:13931 blocked for more than 144 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:23344 pid:13931 ppid: 7925 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 synchronize_net+0x3c/0x60 net/core/dev.c:10944 dev_deactivate_many+0x495/0xc50 net/sched/sch_generic.c:1291 __dev_close_many+0x135/0x2f0 net/core/dev.c:1555 dev_close_many+0x22c/0x620 net/core/dev.c:1593 dev_close net/core/dev.c:1619 [inline] dev_close+0x16d/0x210 net/core/dev.c:1613 team_port_add drivers/net/team/team.c:1305 [inline] team_add_slave+0x10bb/0x1cc0 drivers/net/team/team.c:1967 do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2521 do_setlink+0x9f3/0x3970 net/core/rtnetlink.c:2726 __rtnl_newlink+0xde6/0x1750 net/core/rtnetlink.c:3391 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5572 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2403 ___sys_sendmsg+0xf3/0x170 net/socket.c:2457 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2486 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007fdb82b75188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffeaa9b3f7f R14: 00007fdb82b75300 R15: 0000000000022000 INFO: task syz-executor.2:13932 blocked for more than 145 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27960 pid:13932 ppid: 8489 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 synchronize_rcu_expedited+0x473/0x620 kernel/rcu/tree_exp.h:853 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3788 rcu_sync_enter+0x147/0x2e0 kernel/rcu/sync.c:149 percpu_down_write+0x57/0x3e0 kernel/locking/percpu-rwsem.c:220 ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:623 ext4_ioctl_setflags fs/ext4/ioctl.c:456 [inline] ext4_fileattr_set+0x14c8/0x1940 fs/ext4/ioctl.c:762 vfs_fileattr_set+0x7f2/0xb50 fs/ioctl.c:895 ioctl_fssetxattr fs/ioctl.c:957 [inline] do_vfs_ioctl+0xe71/0x15d0 fs/ioctl.c:1044 __do_sys_ioctl fs/ioctl.c:1067 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x108/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f06d435d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000400007 RSI: 0000000040086602 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc2a84987f R14: 00007f06d435d300 R15: 0000000000022000 INFO: task syz-executor.0:13930 blocked for more than 145 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27672 pid:13930 ppid: 16781 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 do_ipv6_setsockopt.constprop.0+0x315/0x4230 net/ipv6/ipv6_sockglue.c:417 ipv6_setsockopt+0xd6/0x180 net/ipv6/ipv6_sockglue.c:1003 udpv6_setsockopt+0x76/0xc0 net/ipv6/udp.c:1646 __sys_setsockopt+0x2db/0x610 net/socket.c:2170 __do_sys_setsockopt net/socket.c:2181 [inline] __se_sys_setsockopt net/socket.c:2178 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2178 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f6e96408188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000014 RSI: 0000000000000029 RDI: 0000000000000007 RBP: 00000000004bfcc4 R08: 0000000000000301 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff646330af R14: 00007f6e96408300 R15: 0000000000022000 INFO: task syz-executor.0:13939 blocked for more than 145 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:29592 pid:13939 ppid: 16781 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ifconf+0x17f/0x370 net/core/dev_ioctl.c:64 sock_ioctl+0x4e1/0x640 net/socket.c:1228 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f6e963e7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000400308 RSI: 0000000000008912 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fff646330af R14: 00007f6e963e7300 R15: 0000000000022000 INFO: task syz-executor.0:13945 blocked for more than 146 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27728 pid:13945 ppid: 16781 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 do_ipv6_setsockopt.constprop.0+0x315/0x4230 net/ipv6/ipv6_sockglue.c:417 ipv6_setsockopt+0xd6/0x180 net/ipv6/ipv6_sockglue.c:1003 udpv6_setsockopt+0x76/0xc0 net/ipv6/udp.c:1646 __sys_setsockopt+0x2db/0x610 net/socket.c:2170 __do_sys_setsockopt net/socket.c:2181 [inline] __se_sys_setsockopt net/socket.c:2178 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2178 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f6e963c6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665f9 RDX: 0000000000000014 RSI: 0000000000000029 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000301 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007fff646330af R14: 00007f6e963c6300 R15: 0000000000022000 INFO: task syz-executor.0:13955 blocked for more than 146 seconds. Not tainted 5.14.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:29368 pid:13955 ppid: 16781 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4681 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5938 schedule+0xd3/0x270 kernel/sched/core.c:6017 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6076 __mutex_lock_common kernel/locking/mutex.c:1036 [inline] __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104 dev_ifconf+0x17f/0x370 net/core/dev_ioctl.c:64 sock_ioctl+0x4e1/0x640 net/socket.c:1228 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 RSP: 002b:00007f6e963a5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665f9 RDX: 0000000000400308 RSI: 0000000000008912 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 R13: 00007fff646330af R14: 00007f6e963a5300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1654: #0: ffffffff8b97c280 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by khugepaged/1661: #0: ffffffff8ba5e228 (lock#6){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:791 1 lock held by in:imklog/8162: #0: ffff888015580af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 3 locks held by kworker/1:4/10041: 1 lock held by syz-executor.4/13934: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 1 lock held by syz-executor.4/13938: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 1 lock held by syz-executor.4/13940: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 1 lock held by syz-executor.4/13956: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xee0 net/core/dev_ioctl.c:611 3 locks held by syz-executor.3/13931: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569 #1: ffff888069f04cf8 (team->team_lock_key#12){+.+.}-{3:3}, at: team_add_slave+0x9f/0x1cc0 drivers/net/team/team.c:1966 #2: ffffffff8b9856e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #2: ffffffff8b9856e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 4 locks held by syz-executor.2/13932: #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:924 [inline] #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: do_vfs_ioctl+0xe36/0x15d0 fs/ioctl.c:1038 #1: ffff88807068ca50 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff88807068ca50 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: vfs_fileattr_set+0x148/0xb50 fs/ioctl.c:880 #2: ffff888148016b40 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:623 #3: ffffffff8b9856e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #3: ffffffff8b9856e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fc/0x620 kernel/rcu/tree_exp.h:837 1 lock held by syz-executor.0/13930: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt.constprop.0+0x315/0x4230 net/ipv6/ipv6_sockglue.c:417 1 lock held by syz-executor.0/13939: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ifconf+0x17f/0x370 net/core/dev_ioctl.c:64 1 lock held by syz-executor.0/13945: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt.constprop.0+0x315/0x4230 net/ipv6/ipv6_sockglue.c:417 1 lock held by syz-executor.0/13955: #0: ffffffff8d0cd7a8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ifconf+0x17f/0x370 net/core/dev_ioctl.c:64 1 lock held by syz-executor.5/13929: #0: ffffffff8b9ef948 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x23/0xf0 kernel/trace/trace_event_perf.c:241 2 locks held by syz-executor.1/13949: #0: ffffffff90258038 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11548 #1: ffffffff8b9ef948 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x49/0x240 kernel/trace/trace_event_perf.c:223 3 locks held by syz-executor.1/13950: #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: ioctl_setflags fs/ioctl.c:924 [inline] #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: do_vfs_ioctl+0xe36/0x15d0 fs/ioctl.c:1038 #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: vfs_fileattr_set+0x148/0xb50 fs/ioctl.c:880 #2: ffff888148016b40 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x237/0x840 fs/ext4/migrate.c:623 2 locks held by syz-executor.1/13952: #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3367 [inline] #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1aee/0x27f0 fs/namei.c:3507 #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x6fa/0x17e0 security/integrity/ima/ima_main.c:234 2 locks held by syz-executor.1/13953: #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: do_open fs/namei.c:3367 [inline] #0: ffff888148014460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1aee/0x27f0 fs/namei.c:3507 #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff888039e3f230 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x6fa/0x17e0 security/integrity/ima/ima_main.c:234 2 locks held by syz-executor.1/13954: #0: ffffffff90258038 (&pmus_srcu){....}-{0:0}, at: perf_event_alloc.part.0+0xce2/0x3b10 kernel/events/core.c:11548 #1: ffffffff8b9ef948 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x49/0x240 kernel/trace/trace_event_perf.c:223 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1654 Comm: khungtaskd Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xd0a/0xfc0 kernel/hung_task.c:295 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10041 Comm: kworker/1:4 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events prog_array_map_clear_deferred RIP: 0010:task_wait_context kernel/locking/lockdep.c:4620 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4709 [inline] RIP: 0010:__lock_acquire+0x5ba/0x54a0 kernel/locking/lockdep.c:4965 Code: 83 e1 07 42 0f b6 04 00 38 c8 7f 08 84 c0 0f 85 f3 2b 00 00 0f b6 43 21 44 31 f8 a8 60 74 c1 41 83 c6 01 65 8b 05 9e 2e a7 7e <85> c0 0f 85 cb 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5c 24 RSP: 0018:ffffc9000a1378e8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88806a824270 RCX: 0000000000000001 RDX: 0000000000000009 RSI: 0000000000000002 RDI: ffffffff8fd69279 RBP: ffff88806a824269 R08: dffffc0000000000 R09: ffffffff8fcfaa07 R10: fffffbfff1f9f540 R11: 0000000000000000 R12: ffff88806a8242c0 R13: ffff88806a823880 R14: 0000000000000000 R15: 0000000000000009 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4090fed000 CR3: 000000001cf7f000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __mutex_lock_common kernel/locking/mutex.c:959 [inline] __mutex_lock+0x12a/0x10a0 kernel/locking/mutex.c:1104 fd_array_map_delete_elem+0x120/0x2e0 kernel/bpf/arraymap.c:822 bpf_fd_array_map_clear kernel/bpf/arraymap.c:872 [inline] prog_array_map_clear_deferred+0x10b/0x1b0 kernel/bpf/arraymap.c:1051 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 83 e1 07 and $0x7,%ecx 3: 42 0f b6 04 00 movzbl (%rax,%r8,1),%eax 8: 38 c8 cmp %cl,%al a: 7f 08 jg 0x14 c: 84 c0 test %al,%al e: 0f 85 f3 2b 00 00 jne 0x2c07 14: 0f b6 43 21 movzbl 0x21(%rbx),%eax 18: 44 31 f8 xor %r15d,%eax 1b: a8 60 test $0x60,%al 1d: 74 c1 je 0xffffffe0 1f: 41 83 c6 01 add $0x1,%r14d 23: 65 8b 05 9e 2e a7 7e mov %gs:0x7ea72e9e(%rip),%eax # 0x7ea72ec8 * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 0f 85 cb 0a 00 00 jne 0xafd 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 5c pop %rsp 3f: 24 .byte 0x24