WARNING: CPU: 2 PID: 6494 at kernel/trace/blktrace.c:1095 blk_register_tracepoints+0x2dd/0x3c0 kernel/trace/blktrace.c:1095 Modules linked in: CPU: 2 UID: 0 PID: 6494 Comm: syz.0.18 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:blk_register_tracepoints+0x2dd/0x3c0 kernel/trace/blktrace.c:1095 Code: c7 c7 80 b5 4b 90 e8 b2 24 fa ff 31 ff 89 c3 89 c6 e8 67 38 f8 ff 85 db 0f 85 d8 00 00 00 5b e9 19 36 f8 ff e8 14 36 f8 ff 90 <0f> 0b 90 e9 49 fd ff ff e8 06 36 f8 ff 90 0f 0b 90 e9 68 fd ff ff RSP: 0018:ffffc9000499fba8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000fffffff4 RCX: ffffffff8195faa6 RDX: ffff888024ab2440 RSI: ffffffff8195fd5c RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffffffffffff R14: ffff88802673a720 R15: ffffc9000499fc74 FS: 00007f1cb50646c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 00000000344ce000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: get_probe_ref kernel/trace/blktrace.c:337 [inline] do_blk_trace_setup+0x92d/0xb40 kernel/trace/blktrace.c:611 __blk_trace_setup+0xd8/0x180 kernel/trace/blktrace.c:630 blk_trace_setup+0x47/0x70 kernel/trace/blktrace.c:648 sg_ioctl_common drivers/scsi/sg.c:1121 [inline] sg_ioctl+0x65e/0x2750 drivers/scsi/sg.c:1163 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1cb417e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1cb5064038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1cb4335f80 RCX: 00007f1cb417e719 RDX: 0000000020000000 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f1cb5064090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000000 R14: 00007f1cb4335f80 R15: 00007ffc74f786d8