RBP: 00007fc1a4635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc1a4826128 R14: 00007fc1a4826090 R15: 00007ffca8b1b748
 </TASK>
------------[ cut here ]------------
ret
WARNING: kernel/trace/blktrace.c:1367 at blk_register_tracepoints+0x41c/0x440 kernel/trace/blktrace.c:1367, CPU#0: syz.0.1716/19000
Modules linked in:
CPU: 0 UID: 0 PID: 19000 Comm: syz.0.1716 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:blk_register_tracepoints+0x41c/0x440 kernel/trace/blktrace.c:1367
Code: 0f 0b 90 e9 7d fe ff ff e8 71 8f f7 ff 90 0f 0b 90 e9 9c fe ff ff e8 63 8f f7 ff 90 0f 0b 90 e9 bb fe ff ff e8 55 8f f7 ff 90 <0f> 0b 90 e9 da fe ff ff e8 47 8f f7 ff 90 0f 0b 90 e8 3e 8f f7 ff
RSP: 0018:ffffc9000500fb00 EFLAGS: 00010283
RAX: 0000000000043829 RBX: 00000000fffffff4 RCX: ffffc9000e279000
RDX: 0000000000080000 RSI: ffffffff821390fb RDI: ffff88807a891f40
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000001 R12: 200000000040000d
R13: ffff88802740a540 R14: ffffc9000500fda0 R15: 0000000000000001
FS:  00007fc1a54976c0(0000) GS:ffff888123b76000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d0c6ff8 CR3: 000000005650e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 get_probe_ref kernel/trace/blktrace.c:492 [inline]
 blk_trace_setup_finalize+0x320/0x3a0 kernel/trace/blktrace.c:759
 blk_trace_setup+0x254/0x440 kernel/trace/blktrace.c:795
 blk_trace_ioctl+0x245/0x320 kernel/trace/blktrace.c:937
 blkdev_ioctl+0x17c/0x6f0 block/ioctl.c:787
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x121/0x770 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1a459e0d9
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:00007fc1a5497028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc1a4826090 RCX: 00007fc1a459e0d9
RDX: 00002000000000c0 RSI: 00000000c0481273 RDI: 0000000000000007
RBP: 00007fc1a4635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc1a4826128 R14: 00007fc1a4826090 R15: 00007ffca8b1b748
 </TASK>