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Reader on commit with 10864 missed events
WARNING: kernel/trace/ring_buffer.c:7391 at ring_buffer_map_get_reader+0x63c/0x880 kernel/trace/ring_buffer.c:7391, CPU#0: syz.3.7262/25505
Modules linked in:
CPU: 0 UID: 0 PID: 25505 Comm: syz.3.7262 Tainted: G     U       L      syzkaller #0 PREEMPT(full) 
Tainted: [U]=USER, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:ring_buffer_map_get_reader+0x63f/0x880 kernel/trace/ring_buffer.c:7391
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4f 02 00 00 4c 3b a3 a0 00 00 00 0f 85 5b d2 18 ff e8 4b e1 fb ff 48 8d 3d 94 da b0 0e 4c 89 fe <67> 48 0f b9 3a e9 e0 fc ff ff 4c 8b 7c 24 58 4c 8b 74 24 60 e8 28
RSP: 0018:ffffc90004c0fd98 EFLAGS: 00010087
RAX: 000000000000088e RBX: ffff88813fe28800 RCX: ffffc9000c3ab000
RDX: 0000000000080000 RSI: 0000000000002a70 RDI: ffffffff90bb4410
RBP: ffff88805a21f580 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000002a70 R11: ffff88813fe288b0 R12: ffff88805a21f580
R13: dffffc0000000000 R14: ffff88813fe288a8 R15: 0000000000002a70
FS:  00007fd6910ed6c0(0000) GS:ffff8881245e2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31308ff8 CR3: 000000001ff28000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 tracing_buffers_ioctl+0x30d/0x400 kernel/trace/trace.c:8938
 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:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd69019aeb9
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:00007fd6910ed028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd690415fa0 RCX: 00007fd69019aeb9
RDX: 0000000000000000 RSI: 0000000000005220 RDI: 0000000000000002
RBP: 00007fd690208c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd690416038 R14: 00007fd690415fa0 R15: 00007ffea8428928
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	0f 85 4f 02 00 00    	jne    0x25d
   e:	4c 3b a3 a0 00 00 00 	cmp    0xa0(%rbx),%r12
  15:	0f 85 5b d2 18 ff    	jne    0xff18d276
  1b:	e8 4b e1 fb ff       	call   0xfffbe16b
  20:	48 8d 3d 94 da b0 0e 	lea    0xeb0da94(%rip),%rdi        # 0xeb0dabb
  27:	4c 89 fe             	mov    %r15,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 e0 fc ff ff       	jmp    0xfffffd14
  34:	4c 8b 7c 24 58       	mov    0x58(%rsp),%r15
  39:	4c 8b 74 24 60       	mov    0x60(%rsp),%r14
  3e:	e8                   	.byte 0xe8
  3f:	28                   	.byte 0x28