RAX: ffffffffffffffda RBX: 00007f6a85825fa0 RCX: 00007f6a8559e159
RDX: 0000200000000440 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f6a8563506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6a85826038 R14: 00007f6a85825fa0 R15: 00007ffe54608b78
 </TASK>
------------[ cut here ]------------
ret
WARNING: kernel/trace/blktrace.c:1332 at blk_register_tracepoints kernel/trace/blktrace.c:1332 [inline], CPU#0: syz.4.1744/12417
WARNING: kernel/trace/blktrace.c:1332 at get_probe_ref+0x377/0x470 kernel/trace/blktrace.c:492, CPU#0: syz.4.1744/12417
Modules linked in:
CPU: 0 UID: 0 PID: 12417 Comm: syz.4.1744 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:blk_register_tracepoints kernel/trace/blktrace.c:1332 [inline]
RIP: 0010:get_probe_ref+0x377/0x470 kernel/trace/blktrace.c:492
Code: c3 31 ff 89 c6 e8 c9 2c f7 ff 85 db 0f 85 00 01 00 00 e8 bc 27 f7 ff 48 c7 c7 20 d1 dc 8e 5b e9 7f 4e 17 0a e8 aa 27 f7 ff 90 <0f> 0b 90 e9 e8 fc ff ff e8 9c 27 f7 ff 90 0f 0b 90 e9 07 fd ff ff
RSP: 0018:ffffc90003fbf850 EFLAGS: 00010283
RAX: ffffffff81d0c386 RBX: 00000000fffffff4 RCX: 0000000000080000
RDX: ffffc900063a9000 RSI: 000000000000f29a RDI: 000000000000f29b
RBP: ffffc90003fbfa90 R08: ffffc90003fbf787 R09: 1ffff920007f7ef0
R10: dffffc0000000000 R11: fffff520007f7ef1 R12: 1ffff920007f7f14
R13: ffff88807b05beac R14: dffffc0000000000 R15: 0000000000400140
FS:  00007f6a863f86c0(0000) GS:ffff888124cc8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a855eb840 CR3: 00000000332dc000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 blk_trace_setup+0x379/0x520 kernel/trace/blktrace.c:795
 blk_trace_ioctl+0x37f/0x910 kernel/trace/blktrace.c:937
 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:787
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6a8559e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6a863f8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6a85825fa0 RCX: 00007f6a8559e159
RDX: 0000200000000440 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f6a8563506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6a85826038 R14: 00007f6a85825fa0 R15: 00007ffe54608b78
 </TASK>