TCP: request_sock_TCPv6: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. hpet: Lost 1 RTC interrupts INFO: task syz-executor.1:49482 blocked for more than 143 seconds. Not tainted 5.10.156 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28600 pid:49482 ppid: 281 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3797 [inline] __schedule+0x848/0x1e90 kernel/sched/core.c:4546 schedule+0xcb/0x270 kernel/sched/core.c:4624 __io_uring_task_cancel+0x1ae/0x250 fs/io_uring.c:8911 io_uring_task_cancel include/linux/io_uring.h:46 [inline] bprm_execve+0x114/0x1b00 fs/exec.c:1794 do_execveat_common+0x76d/0x8d0 fs/exec.c:1940 do_execveat fs/exec.c:2021 [inline] __do_sys_execveat fs/exec.c:2097 [inline] __se_sys_execveat fs/exec.c:2089 [inline] __x64_sys_execveat+0xed/0x140 fs/exec.c:2089 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f09cb0e3b19 RSP: 002b:00007f09c8659188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 00007f09cb1f6f60 RCX: 00007f09cb0e3b19 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffffff RBP: 00007f09cb13df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe9583e1cf R14: 00007f09c8659300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff81a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6390 2 locks held by in:imklog/178: #0: ffff88800ee12370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1003 #1: ffffffff84fec5b8 (logbuf_lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1295 [inline] #1: ffffffff84fec5b8 (logbuf_lock){-.-.}-{2:2}, at: __schedule+0x1e2/0x1e90 kernel/sched/core.c:4464 ============================================= hpet: Lost 1 RTC interrupts