INFO: task syz.0.1084:8720 blocked for more than 144 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.1084 state:D stack:23880 pid:8720 ppid:4257 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6560
schedule+0xbf/0x180 kernel/sched/core.c:6636
request_wait_answer fs/fuse/dev.c:407 [inline]
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x115a/0x1b40 fs/fuse/dev.c:513
fuse_flush+0x694/0x950 fs/fuse/file.c:521
filp_close+0xae/0x150 fs/open.c:1431
__range_close fs/file.c:697 [inline]
__close_range+0x597/0x7d0 fs/file.c:747
__do_sys_close_range fs/open.c:1476 [inline]
__se_sys_close_range fs/open.c:1473 [inline]
__x64_sys_close_range+0x76/0x80 fs/open.c:1473
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f997878d169
RSP: 002b:00007fffde3ac208 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007f99789a7ba0 RCX: 00007f997878d169
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f99789a7ba0 R08: 0000000000000214 R09: 0000001ede3ac4ff
R10: 00007f99789a7ac0 R11: 0000000000000246 R12: 0000000000064fb2
R13: 00007f99789a6160 R14: ffffffffffffffff R15: 00007fffde3ac320
INFO: task syz.0.1084:8726 blocked for more than 145 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.1084 state:D stack:27968 pid:8726 ppid:4257 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6560
schedule+0xbf/0x180 kernel/sched/core.c:6636
request_wait_answer fs/fuse/dev.c:407 [inline]
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x115a/0x1b40 fs/fuse/dev.c:513
fuse_do_getattr+0x3cc/0x1060 fs/fuse/dir.c:1133
vfs_getattr fs/stat.c:161 [inline]
vfs_statx+0x1bd/0x480 fs/stat.c:233
vfs_fstatat fs/stat.c:267 [inline]
__do_sys_newfstatat fs/stat.c:437 [inline]
__se_sys_newfstatat fs/stat.c:431 [inline]
__x64_sys_newfstatat+0x151/0x1e0 fs/stat.c:431
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f997878d169
RSP: 002b:00007f9979505038 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f99789a6080 RCX: 00007f997878d169
RDX: 0000000000000000 RSI: 00004000000008c0 RDI: ffffffffffffff9c
RBP: 00007f997880e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f99789a6080 R15: 00007fffde3ac0a8
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d32e850 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0:
ffffffff8d32f050 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
2 locks held by getty/4008:
#0: ffff88814d300098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x54a/0x1620 drivers/tty/n_tty.c:2198
3 locks held by kworker/0:15/4520:
2 locks held by sed/10782:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ca/0x430 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10784 Comm: cmp Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__lock_release kernel/locking/lockdep.c:5320 [inline]
RIP: 0010:lock_release+0x1db/0xa20 kernel/locking/lockdep.c:5682
Code: 42 0f b6 04 3b 84 c0 0f 85 6e 05 00 00 c7 84 24 80 00 00 00 01 00 00 00 48 c7 c0 f4 d3 a0 8e 48 c1 e8 03 42 0f b6 04 38 84 c0 <4c> 8b 74 24 10 0f 85 6e 05 00 00 83 3d 87 08 36 0d 00 0f 84 c4 03
RSP: 0018:ffffc90004ec7480 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff920009d8ea0 RCX: ffffc90004ec7503
RDX: 0000000000000000 RSI: ffffffff8b0c2a20 RDI: ffffffff8b5f6d80
RBP: ffffc90004ec75b0 R08: dffffc0000000000 R09: fffffbfff1d413e6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920009d8e9c
R13: 0000000000000046 R14: ffffc90004ec7530 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f49d9622440 CR3: 0000000029243000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
folio_memcg_lock+0x1b0/0x380 mm/memcontrol.c:2109
page_remove_rmap+0x2e/0xed0 mm/rmap.c:1426
zap_pte_range mm/memory.c:1453 [inline]
zap_pmd_range mm/memory.c:1574 [inline]
zap_pud_range mm/memory.c:1603 [inline]
zap_p4d_range mm/memory.c:1624 [inline]
unmap_page_range+0x1217/0x2740 mm/memory.c:1645
unmap_vmas+0x48b/0x640 mm/memory.c:1730
exit_mmap+0x249/0x980 mm/mmap.c:3238
__mmput+0x115/0x3c0 kernel/fork.c:1200
exit_mm+0x226/0x300 kernel/exit.c:565
do_exit+0x9f1/0x26a0 kernel/exit.c:858
do_group_exit+0x202/0x2b0 kernel/exit.c:1021
__do_sys_exit_group kernel/exit.c:1032 [inline]
__se_sys_exit_group kernel/exit.c:1030 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1030
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f49d96e0a90
Code: Unable to access opcode bytes at 0x7f49d96e0a66.
RSP: 002b:00007ffc1f6991f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f49d97d1860 RCX: 00007f49d96e0a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00007f49d97d1860 R08: 00007ffc1f699070 R09: 00007ffc1f699150
R10: 00007ffc1f6990b0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f49d97d5658 R15: 0000000000000001