INFO: task syz-executor.1:16099 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27152 pid:16099 tgid:16095 ppid:5089 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6828 __lock_sock+0x1cd/0x330 net/core/sock.c:2960 lock_sock_nested+0x9e/0x100 net/core/sock.c:3540 lock_sock include/net/sock.h:1671 [inline] qrtr_ioctl+0xc8/0x470 net/qrtr/af_qrtr.c:1156 sock_do_ioctl+0x158/0x460 net/socket.c:1222 sock_ioctl+0x629/0x8e0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] do_vfs_ioctl+0xece/0x2e50 fs/ioctl.c:858 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f86ff47dea9 RSP: 002b:00007f87001d70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f86ff5ac050 RCX: 00007f86ff47dea9 RDX: 0000000020000840 RSI: 000000000000541b RDI: 000000000000000a RBP: 00007f86ff4ca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f86ff5ac050 R15: 00007fffcc113c48 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 3 locks held by kworker/u8:6/1080: 2 locks held by getty/4830: #0: ffff88802a2cc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-fuzzer/5069: 2 locks held by syz-fuzzer/5079: 1 lock held by syz-fuzzer/5167: 1 lock held by syz-executor.1/16096: #0: ffff888018ac0818 (sk_lock-AF_QIPCRTR){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] #0: ffff888018ac0818 (sk_lock-AF_QIPCRTR){+.+.}-{0:0}, at: qrtr_recvmsg+0x101/0xc90 net/qrtr/af_qrtr.c:1040 1 lock held by syz-executor.1/16099: #0: ffff888018ac0818 (sk_lock-AF_QIPCRTR){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] #0: ffff888018ac0818 (sk_lock-AF_QIPCRTR){+.+.}-{0:0}, at: qrtr_ioctl+0xc8/0x470 net/qrtr/af_qrtr.c:1156