INFO: task syz.0.153:5999 blocked for more than 157 seconds.
Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.153 state:D stack:22736 pid:5999 tgid:5999 ppid:5508 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
pipe_release+0x48/0x320 fs/pipe.c:727
__fput+0x23f/0x880 fs/file_table.c:431
task_work_run+0x24f/0x310 kernel/task_work.c:228
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24c5d7dff9
RSP: 002b:00007ffce95314c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f24c5f37a80 RCX: 00007f24c5d7dff9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f24c5f37a80 R08: 0000000000000006 R09: 00007ffce95317bf
R10: 00000000003ffc5c R11: 0000000000000246 R12: 0000000000022ce2
R13: 00007ffce95315d0 R14: 0000000000000226 R15: ffffffffffffffff
INFO: task syz.0.153:6010 blocked for more than 159 seconds.
Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.153 state:D stack:27392 pid:6010 tgid:5999 ppid:5508 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
vmsplice_to_pipe fs/splice.c:1555 [inline]
__do_sys_vmsplice fs/splice.c:1624 [inline]
__se_sys_vmsplice+0x4ca/0x1470 fs/splice.c:1598
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24c5d7dff9
RSP: 002b:00007f24c6c1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 00007f24c5f36058 RCX: 00007f24c5d7dff9
RDX: 0000000000000008 RSI: 0000000020000700 RDI: 0000000000000008
RBP: 00007f24c5df0296 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000a R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f24c5f36058 R15: 00007ffce9531368
INFO: task syz.0.153:6015 blocked for more than 161 seconds.
Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.153 state:D stack:27392 pid:6015 tgid:5999 ppid:5508 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
pipe_ioctl+0x9d/0x480 fs/pipe.c:622
vfs_ioctl fs/ioctl.c:51 [inline]
do_vfs_ioctl+0xec8/0x2e40 fs/ioctl.c:861
__do_sys_ioctl fs/ioctl.c:905 [inline]
__se_sys_ioctl+0x81/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24c5d7dff9
RSP: 002b:00007f24c6bfe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f24c5f36130 RCX: 00007f24c5d7dff9
RDX: 0000000000000000 RSI: 000000000000541b RDI: 0000000000000008
RBP: 00007f24c5df0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f24c5f36130 R15: 00007ffce9531368
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
4 locks held by kworker/1:2/1179:
#0: ffff8880b873ead8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:593
#1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffff8880b872a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240 kernel/time/timer.c:1051
#3: ffffffff9a699f20 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16d/0x510 lib/debugobjects.c:708
2 locks held by getty/4994:
#0: ffff888032e1a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by dhcpcd/5048:
1 lock held by syz.0.153/5999:
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: pipe_release+0x48/0x320 fs/pipe.c:727
1 lock held by syz.0.153/6000:
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: splice_file_to_pipe+0x2e/0x500 fs/splice.c:1292
1 lock held by syz.0.153/6010:
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: vmsplice_to_pipe fs/splice.c:1555 [inline]
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: __do_sys_vmsplice fs/splice.c:1624 [inline]
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: __se_sys_vmsplice+0x4ca/0x1470 fs/splice.c:1598
1 lock held by syz.0.153/6015:
#0: ffff8880273d0868 (&pipe->mutex){+.+.}-{3:3}, at: pipe_ioctl+0x9d/0x480 fs/pipe.c:622
1 lock held by syz-executor/6077:
2 locks held by syz.4.173/6080:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:fmul2 arch/x86/crypto/curve25519-x86_64.c:296 [inline]
RIP: 0010:curve25519_ever64_base arch/x86/crypto/curve25519-x86_64.c:1578 [inline]
RIP: 0010:curve25519_base_arch+0xebf/0x3600 arch/x86/crypto/curve25519-x86_64.c:1609
Code: bb f6 4c 24 20 45 31 d2 66 4d 0f 38 f6 47 50 4d 89 47 50 c4 42 ab f6 5c 24 28 f3 4d 0f 38 f6 d1 66 4c 0f 38 f6 d3 4d 89 57 58 42 e3 f6 6c 24 30 f3 49 0f 38 f6 db 66 49 0f 38 f6 de 49 c7 c0
RSP: 0018:ffffc900001073c0 EFLAGS: 00000247
RAX: 283b0a59dcd8b946 RBX: 528d319e400a8698 RCX: ffffc900001074c0
RDX: a1d7e2f9d38bdcdb RSI: ffffc90000107540 RDI: ffffc90000107500
RBP: ffffc90000107710 R08: 732e7965f823314e R09: 473732bbb9133c15
R10: 08a7c4ce7710a88a R11: 81ecde1193cf14b5 R12: ffffc90000107540
R13: 0cc41c588ef50783 R14: 9c6f6c72d500c947 R15: ffffc900001075c0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffccd48e268 CR3: 0000000060fd4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
curve25519_generate_public include/crypto/curve25519.h:55 [inline]
wg_noise_handshake_create_initiation+0x452/0xf30 drivers/net/wireguard/noise.c:542
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x15b/0x330 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244