INFO: task syz-executor.5:11291 blocked for more than 143 seconds.
      Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:25576 pid:11291 ppid:19297  flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xadf/0x5270 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 wb_wait_for_completion+0x17e/0x240 fs/fs-writeback.c:191
 __writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
 try_to_writeback_inodes_sb+0x94/0xc0 fs/fs-writeback.c:2668
 ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
 ext4_da_write_begin+0x16d/0xae0 fs/ext4/inode.c:2977
 generic_perform_write+0x246/0x560 mm/filemap.c:3745
 ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
 ext4_file_write_iter+0x8b8/0x16e0 fs/ext4/file.c:700
 __kernel_write_iter+0x25e/0x730 fs/read_write.c:517
 dump_emit_page fs/coredump.c:857 [inline]
 dump_user_range+0x230/0x700 fs/coredump.c:908
 elf_core_dump+0x26de/0x3510 fs/binfmt_elf.c:2311
 do_coredump+0x2732/0x3c40 fs/coredump.c:755
 get_signal+0x1be1/0x2430 kernel/signal.c:2844
 arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop kernel/entry/common.c:166 [inline]
 exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:201
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:307
 exc_page_fault+0xbc/0x170 arch/x86/mm/fault.c:1557
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0xc03e5c27e1
RSP: 002b:0000000020000328 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f53011abf80 RCX: 00007f530108b5a9
RDX: 0000000020000340 RSI: 0000000020000320 RDI: 0000000050004000
RBP: 00007f53010e6580 R08: 00000000200003c0 R09: 00000000200003c0
R10: 0000000020000380 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fff224e23cf R14: 00007f53021fc300 R15: 0000000000022000
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x206/0x250 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+0xbf9/0xf30 kernel/hung_task.c:377
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 19297 Comm: syz-executor.5 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:__kasan_check_write+0x4/0x10 mm/kasan/shadow.c:37
Code: 00 48 89 fb 48 39 c7 0f 82 6f d5 77 07 eb e1 cc cc cc cc cc cc cc 48 8b 0c 24 89 f6 31 d2 e9 b3 fa ff ff 0f 1f 00 48 8b 0c 24 <89> f6 ba 01 00 00 00 e9 a0 fa ff ff 55 53 48 8b 07 48 89 fb 48 85
RSP: 0018:ffffc90004c9fb90 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffff92000993f74 RCX: ffffffff815f32d0
RDX: ffffed100467d28d RSI: 0000000000000004 RDI: ffffc90004c9fbc0
RBP: ffff8880233e9460 R08: 0000000000000001 R09: ffff8880233e9463
R10: ffffed100467d28c R11: 0000000000000001 R12: ffff8880233e9468
R13: ffff8880233e9470 R14: 0000000000000000 R15: ffff88801eb5a3a8
FS:  0000555556184400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffce0325b30 CR3: 0000000060937000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:542 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
 do_raw_spin_lock+0x120/0x2a0 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x41/0x50 kernel/locking/spinlock.c:162
 remove_wait_queue+0x1d/0x180 kernel/sched/wait.c:54
 do_wait+0x664/0xce0 kernel/exit.c:1561
 kernel_wait4+0x14c/0x260 kernel/exit.c:1699
 __do_sys_wait4+0x13f/0x150 kernel/exit.c:1727
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5301089157
Code: 89 7c 24 10 48 89 4c 24 18 e8 25 59 02 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 55 59 02 00 8b 44
RSP: 002b:00007fff224e2600 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 00000000000010ce RCX: 00007f5301089157
RDX: 0000000040000001 RSI: 00007fff224e268c RDI: 00000000ffffffff
RBP: 00007fff224e268c R08: 0000000000000000 R09: 00007fff224fc080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000013180f R14: 000000000000000a R15: 00007fff224e26f0
 </TASK>