rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...0: (1 GPs behind) idle=bcac/1/0x4000000000000000 softirq=9591/9594 fqs=2100
rcu: hardirqs softirqs csw/system
rcu: number: 0 0 0
rcu: cputime: 0 0 0 ==> 52550(ms)
rcu: (detected by 1, t=10506 jiffies, g=13797, q=87 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10536 Comm: syz-executor347 Not tainted 6.7.0-rc2-next-20231124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:hlock_id kernel/locking/lockdep.c:430 [inline]
RIP: 0010:__lock_acquire+0xb26/0x3b10 kernel/locking/lockdep.c:5124
Code: df 48 8b 54 24 40 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 56 2d 00 00 45 0f b7 6e 20 41 0f b6 46 22 66 41 81 e5 ff 1f <83> e0 03 48 83 7c 24 18 00 88 44 24 08 0f 84 bd 00 00 00 65 4c 8b
RSP: 0018:ffffc9000526f808 EFLAGS: 00000006
RAX: 000000000000000c RBX: 7ff3249bd3db0911 RCX: ffffffff81683d4c
RDX: 1ffff11005527161 RSI: ffff88802a938ac0 RDI: 00000000ff3249b7
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff23e49ef
R10: ffffffff91f24f7f R11: 0000000000000001 R12: ffffed1005527157
R13: 00000000000001e1 R14: ffff88802a938ae8 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07a8c9b9f8 CR3: 000000000cd78000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5718
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
vga_put+0x31/0x100 drivers/pci/vgaarb.c:547
vga_arb_release+0x264/0x500 drivers/pci/vgaarb.c:1455
__fput+0x270/0xbb0 fs/file_table.c:394
task_work_run+0x14c/0x240 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa85/0x2ad0 kernel/exit.c:871
do_group_exit+0xd3/0x2a0 kernel/exit.c:1021
get_signal+0x2395/0x2770 kernel/signal.c:2893
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11e/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f07a8c45369
Code: Unable to access opcode bytes at 0x7f07a8c4533f.
RSP: 002b:00007f07a8c06238 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f07a8ccf308 RCX: 00007f07a8c45369
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f07a8ccf308
RBP: 00007f07a8ccf300 R08: 00007f07a8c066c0 R09: 00007f07a8c066c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07a8ccf30c
R13: 0000000000000000 R14: 00007fff0756ffe0 R15: 00007fff075700c8
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.345 msecs
NMI backtrace for cpu 0
CPU: 0 PID: 10536 Comm: syz-executor347 Not tainted 6.7.0-rc2-next-20231124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:kasan_check_range+0x12/0x190 mm/kasan/generic.c:187
Code: 31 ff 89 43 0c e8 ae dd ff ff 89 43 08 5b 5d 41 5c c3 66 0f 1f 44 00 00 66 0f 1f 00 48 85 f6 0f 84 48 01 00 00 48 89 f8 41 54 <44> 0f b6 c2 48 01 f0 55 53 0f 82 c6 00 00 00 48 b8 ff ff ff ff ff
RSP: 0018:ffffc9000526f7e8 EFLAGS: 00000002
RAX: ffffffff91f24f78 RBX: 00000000000001e1 RCX: ffffffff81678e1e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff91f24f78
RBP: ffffffff91f77600 R08: 0000000000000000 R09: fffffbfff23e49ef
R10: ffffffff91f24f7f R11: 0000000000000001 R12: 00000000000001e1
R13: 00000000000001e1 R14: ffff88802a938ae8 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07a8c9b9f8 CR3: 000000000cd78000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class+0x4e/0x130 kernel/locking/lockdep.c:228
lookup_chain_cache_add kernel/locking/lockdep.c:3780 [inline]
validate_chain kernel/locking/lockdep.c:3836 [inline]
__lock_acquire+0x14e2/0x3b10 kernel/locking/lockdep.c:5136
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5718
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
vga_put+0x31/0x100 drivers/pci/vgaarb.c:547
vga_arb_release+0x264/0x500 drivers/pci/vgaarb.c:1455
__fput+0x270/0xbb0 fs/file_table.c:394
task_work_run+0x14c/0x240 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa85/0x2ad0 kernel/exit.c:871
do_group_exit+0xd3/0x2a0 kernel/exit.c:1021
get_signal+0x2395/0x2770 kernel/signal.c:2893
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11e/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f07a8c45369
Code: Unable to access opcode bytes at 0x7f07a8c4533f.
RSP: 002b:00007f07a8c06238 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f07a8ccf308 RCX: 00007f07a8c45369
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f07a8ccf308
RBP: 00007f07a8ccf300 R08: 00007f07a8c066c0 R09: 00007f07a8c066c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07a8ccf30c
R13: 0000000000000000 R14: 00007fff0756ffe0 R15: 00007fff075700c8