[syzbot] [kernel?] WARNING in request_threaded_irq

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 18be4ca5cb4e riscv: lib: optimize strlen loop efficiency
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git for-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1166f6e6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=781a4eb07921464d
dashboard link: https://syzkaller.appspot.com/bug?extid=1f1c9d0fa117b165b233
compiler: riscv64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: riscv64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/a741b348759c/non_bootable_disk-18be4ca5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c6b87a8d77c4/vmlinux-18be4ca5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d5126373321c/Image-18be4ca5.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1f1c9d...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: [irq_settings_is_per_cpu_devid(desc)] kernel/irq/manage.c:2125 at request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125, CPU#1: syz.0.10/3870
Modules linked in:
CPU: 1 UID: 0 PID: 3870 Comm: syz.0.10 Not tainted syzkaller #0 PREEMPT
Hardware name: riscv-virtio,qemu (DT)
epc : request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125
ra : request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125
epc : ffffffff8032d750 ra : ffffffff8032d750 sp : ffff8f800ac67810
gp : ffffffff89f9df20 tp : ffffaf801c74cf80 t0 : ffffffff86391c0a
t1 : ffffffff9136c6e0 t2 : ffffffff8016a132 s0 : ffff8f800ac67870
s1 : 0000000000000000 a0 : 0000000000000005 a1 : 0000000000000000
a2 : 0000000000080000 a3 : ffffffff8032d750 a4 : ffff8f8004d6e1e8
a5 : 00000000002041e8 a6 : 0000000000000003 a7 : ffffffff86660460
s2 : 0000000000200000 s3 : ffffaf8011e8d000 s4 : 0000000000000005
s5 : ffffffff84b56ef4 s6 : ffffaf801cd37000 s7 : 0000000000000000
s8 : ffffffff87597e60 s9 : 0000000000020000 s10: ffffaf801cd37000
s11: 0000000000000001 t3 : 0000000000000001 t4 : 0000000000001fff
t5 : 00000000000000c8 t6 : 0000000000000002 ssp : 0000000000000000
status: 0000000200000120 badaddr: ffffffff8032d750 cause: 0000000000000003
[<ffffffff8032d750>] request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125
[<ffffffff84b58918>] request_irq include/linux/interrupt.h:176 [inline]
[<ffffffff84b58918>] parport_attach drivers/comedi/drivers/comedi_parport.c:235 [inline]
[<ffffffff84b58918>] parport_attach+0x780/0xb14 drivers/comedi/drivers/comedi_parport.c:224
[<ffffffff84b492bc>] comedi_device_attach+0x350/0x7ec drivers/comedi/drivers.c:1069
[<ffffffff84b35136>] do_devconfig_ioctl+0x1a2/0x654 drivers/comedi/comedi_fops.c:928
[<ffffffff84b3dfd8>] comedi_unlocked_ioctl+0x338/0x2c10 drivers/comedi/comedi_fops.c:2240
[<ffffffff80ca9130>] vfs_ioctl fs/ioctl.c:51 [inline]
[<ffffffff80ca9130>] __do_sys_ioctl fs/ioctl.c:597 [inline]
[<ffffffff80ca9130>] __se_sys_ioctl fs/ioctl.c:583 [inline]
[<ffffffff80ca9130>] __riscv_sys_ioctl+0x17c/0x1e4 fs/ioctl.c:583
[<ffffffff80078192>] syscall_handler+0x92/0x114 arch/riscv/include/asm/syscall.h:112
[<ffffffff86391c0a>] do_trap_ecall_u+0x3d2/0x58c arch/riscv/kernel/traps.c:344
[<ffffffff863bb61e>] handle_exception+0x15e/0x16a arch/riscv/kernel/entry.S:232


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