INFO: task syz-executor838:3602 blocked for more than 143 seconds.
Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor838 state:D stack:23680 pid: 3602 ppid: 3601 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x937/0x1090 kernel/sched/core.c:6382
schedule+0xeb/0x1b0 kernel/sched/core.c:6454
schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
xfs_buf_iowait fs/xfs/xfs_buf.c:1577 [inline]
__xfs_buf_submit+0x3fe/0x730 fs/xfs/xfs_buf.c:1657
xfs_buf_submit fs/xfs/xfs_buf.c:59 [inline]
xfs_buf_read_uncached+0x22c/0x3d0 fs/xfs/xfs_buf.c:891
xfs_readsb+0x202/0x690 fs/xfs/xfs_mount.c:178
xfs_fs_fill_super+0x833/0x18b0 fs/xfs/xfs_super.c:1490
get_tree_bdev+0x406/0x630 fs/super.c:1292
vfs_get_tree+0x86/0x270 fs/super.c:1497
do_new_mount fs/namespace.c:3039 [inline]
path_mount+0x1986/0x2c30 fs/namespace.c:3369
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3590 [inline]
__se_sys_mount+0x308/0x3c0 fs/namespace.c:3567
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3cd013a3d9
RSP: 002b:00007ffd0e2e7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f3cd013a3d9
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd0e2e7d08
R10: 0000000000008002 R11: 0000000000000246 R12: 00007f3cd00f96f0
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cd1d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by klogd/2922:
#0: ffff8880b9b39bd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:554
2 locks held by getty/3243:
#0: ffff888148bb2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002e732e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c2/0x1c60 drivers/tty/n_tty.c:2075
1 lock held by syz-executor838/3602:
#0: ffff88801fa9c0e0 (&type->s_umount_key#43/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 5.17.0-syzkaller-13966-g8467b0ed6ce3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:match_held_lock+0x2/0xb0 kernel/locking/lockdep.c:5087
Code: c7 c7 20 42 8f 8a 48 c7 c6 60 42 8f 8a 31 c0 e8 44 a1 27 f7 0f 0b eb 8b 0f 0b eb 87 e8 c7 fa ff ff 0f 1f 80 00 00 00 00 55 53 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 10 00 72
RSP: 0018:ffffc900001075a0 EFLAGS: 00000087
RAX: 0000000000000006 RBX: 0000000000000005 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8cd1d000 RDI: ffff88813feac528
RBP: ffff88813feac528 R08: dffffc0000000000 R09: fffffbfff1c4276e
R10: fffffbfff1c4276e R11: 0000000000000000 R12: 0000000000000046
R13: ffff88813feaba00 R14: 00000000ffffffff R15: ffffffff8cd1d000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005573ae510600 CR3: 00000001400fa000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5382 [inline]
lock_is_held_type+0xb1/0x190 kernel/locking/lockdep.c:5684
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x89/0x130 kernel/rcu/update.c:125
trace_tlb_flush+0x7b/0x190 include/trace/events/tlb.h:38
switch_mm_irqs_off+0x5c7/0x910
use_temporary_mm arch/x86/kernel/alternative.c:962 [inline]
__text_poke+0x5bd/0x9f0 arch/x86/kernel/alternative.c:1059
text_poke arch/x86/kernel/alternative.c:1121 [inline]
text_poke_bp_batch+0x487/0x920 arch/x86/kernel/alternative.c:1385
text_poke_flush arch/x86/kernel/alternative.c:1542 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1549
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12d/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x460 mm/kfence/core.c:785
process_one_work+0x83c/0x11a0 kernel/workqueue.c:2289
worker_thread+0xa6c/0x1290 kernel/workqueue.c:2436
kthread+0x2a3/0x2d0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: c7 c7 20 42 8f 8a mov $0x8a8f4220,%edi
6: 48 c7 c6 60 42 8f 8a mov $0xffffffff8a8f4260,%rsi
d: 31 c0 xor %eax,%eax
f: e8 44 a1 27 f7 callq 0xf727a158
14: 0f 0b ud2
16: eb 8b jmp 0xffffffa3
18: 0f 0b ud2
1a: eb 87 jmp 0xffffffa3
1c: e8 c7 fa ff ff callq 0xfffffae8
21: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
28: 55 push %rbp
29: 53 push %rbx
* 2a: bd 01 00 00 00 mov $0x1,%ebp <-- trapping instruction
2f: 48 39 77 10 cmp %rsi,0x10(%rdi)
33: 74 67 je 0x9c
35: 48 89 fb mov %rdi,%rbx
38: 81 7f 20 00 00 10 00 cmpl $0x100000,0x20(%rdi)
3f: 72 .byte 0x72