------------[ cut here ]------------ WARNING: CPU: 3 PID: 5098 at kernel/trace/blktrace.c:1100 blk_register_tracepoints+0x2e8/0x3a0 kernel/trace/blktrace.c:1100 Modules linked in: CPU: 2 PID: 5098 Comm: syz-executor.0 Not tainted 6.0.0-rc6-syzkaller-00309-g1a61b828566f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:blk_register_tracepoints+0x2e8/0x3a0 kernel/trace/blktrace.c:1100 Code: 31 ff 89 c3 89 c6 e8 57 6e f9 ff 85 db 0f 85 ba 00 00 00 5b e9 89 71 f9 ff e8 84 71 f9 ff 0f 0b e9 4b fd ff ff e8 78 71 f9 ff <0f> 0b e9 6c fd ff ff e8 6c 71 f9 ff 0f 0b e9 8d fd ff ff e8 60 71 RSP: 0018:ffffc9000358fba0 EFLAGS: 00010216 RAX: 000000000000fdb3 RBX: 00000000fffffff4 RCX: ffffc90003962000 RDX: 0000000000040000 RSI: ffffffff818297a8 RDI: 0000000000000005 RBP: ffff888026572680 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000000 R12: ffffc9000358fc40 R13: ffff8880265726a8 R14: ffff88804309dca0 R15: ffff8880265726b0 FS: 0000000000000000(0000) GS:ffff88802ca00000(0063) knlGS:00000000f7efbb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000004513c0 CR3: 000000001c02d000 CR4: 0000000000150ee0 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+0x940/0xb60 kernel/trace/blktrace.c:581 __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:600 blk_trace_setup+0x43/0x60 kernel/trace/blktrace.c:618 sg_ioctl_common drivers/scsi/sg.c:1117 [inline] sg_ioctl+0x250/0x25d0 drivers/scsi/sg.c:1159 compat_ptr_ioctl+0x67/0x90 fs/ioctl.c:906 __do_compat_sys_ioctl+0x1c7/0x290 fs/ioctl.c:968 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f00549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7efb5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000c0481273 RDX: 0000000020000040 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi