general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 3630 Comm: syz-executor178 Not tainted 5.15.113-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:hci_uart_tty_ioctl+0x2dc/0xa70 drivers/bluetooth/hci_ldisc.c:772
Code: fa 4c 89 f3 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 7e 9f 6d fa 48 8b 1b 48 89 d8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 87 06 00 00 8b 2b e9 4f 07 00 00 e8 dc 43
RSP: 0018:ffffc9000303fe40 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807c3c0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff875ba4e7 R09: ffffed100482a004
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000800455c9
R13: ffff888016eab000 R14: ffff888024150000 R15: 0000000000000000
FS: 00007fe0e13a3700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed9efa3445 CR3: 000000002330b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
tty_ioctl+0x8ff/0xc50 drivers/tty/tty_io.c:2816
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe0e1412ac9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe0e13a3208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe0e149a3f8 RCX: 00007fe0e1412ac9
RDX: 0000000000000000 RSI: 00000000800455c9 RDI: 0000000000000003
RBP: 00007fe0e149a3f0 R08: 00007fe0e13a3700 R09: 0000000000000000
R10: 00007fe0e13a3700 R11: 0000000000000246 R12: 00007fe0e149a3fc
R13: 00007ffeeb044c3f R14: 00007fe0e13a3300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 7edf9da721f00b32 ]---
RIP: 0010:hci_uart_tty_ioctl+0x2dc/0xa70 drivers/bluetooth/hci_ldisc.c:772
Code: fa 4c 89 f3 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 7e 9f 6d fa 48 8b 1b 48 89 d8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 87 06 00 00 8b 2b e9 4f 07 00 00 e8 dc 43
RSP: 0018:ffffc9000303fe40 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807c3c0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff875ba4e7 R09: ffffed100482a004
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000800455c9
R13: ffff888016eab000 R14: ffff888024150000 R15: 0000000000000000
FS: 00007fe0e13a3700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed9efa3445 CR3: 000000002330b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: fa cli
1: 4c 89 f3 mov %r14,%rbx
4: 48 81 c3 b8 00 00 00 add $0xb8,%rbx
b: 48 89 d8 mov %rbx,%rax
e: 48 c1 e8 03 shr $0x3,%rax
12: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1)
16: 74 08 je 0x20
18: 48 89 df mov %rbx,%rdi
1b: e8 7e 9f 6d fa callq 0xfa6d9f9e
20: 48 8b 1b mov (%rbx),%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 87 06 00 00 jne 0x6bd
36: 8b 2b mov (%rbx),%ebp
38: e9 4f 07 00 00 jmpq 0x78c
3d: e8 .byte 0xe8
3e: dc .byte 0xdc
3f: 43 rex.XB