Unable to handle kernel paging request at virtual address dfff80000000005f
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
[dfff80000000005f] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4180 Comm: syz.0.21 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : h5_recv+0x11c/0x818 drivers/bluetooth/hci_h5.c:569
lr : h5_recv+0xc4/0x818 drivers/bluetooth/hci_h5.c:566
sp : ffff80001fd07a80
x29: ffff80001fd07b70 x28: 0000000000000308 x27: 0000000000000004
x26: dfff800000000000 x25: ffff0000d8a5f800 x24: dfff800000000000
x23: 00000000000002e8 x22: 00000000000002f8 x21: ffff80001fd07c40
x20: 0000000000000001 x19: 000000000000005f x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082bf708 x15: 0000000080045440
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000061 x9 : 1fffe0001b14bf02
x8 : 000000000000005e x7 : ffff80000e694ae0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
h5_recv+0x11c/0x818 drivers/bluetooth/hci_h5.c:-1
hci_uart_tty_receive+0x140/0x1d4 drivers/bluetooth/hci_ldisc.c:621
tiocsti+0x260/0x304 drivers/tty/tty_io.c:2312
tty_ioctl+0x384/0xde0 drivers/tty/tty_io.c:2724
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: f9001fe9 d343fd29 f90023e8 f9001be9 (387a6a68)
---[ end trace 1317db6e3fe0fa8d ]---
----------------
Code disassembly (best guess):
0: f9001fe9 str x9, [sp, #56]
4: d343fd29 lsr x9, x9, #3
8: f90023e8 str x8, [sp, #64]
c: f9001be9 str x9, [sp, #48]
* 10: 387a6a68 ldrb w8, [x19, x26] <-- trapping instruction