general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 PID: 911 Comm: syz.4.133 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:bpf_overflow_handler+0x288/0x370 kernel/events/core.c:9862
Code: ff 55 00 41 89 c4 42 80 3c 3b 00 74 0a 48 8b 7c 24 10 e8 9b 5c 1a 00 48 8b 44 24 10 4c 8b 28 49 83 c5 20 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 ef e8 79 5c 1a 00 bb 70 02 00 00 49 03
RSP: 0000:ffffc90000d679e0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110254d2579 RCX: 0000000000000000
RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffc90000d679d0
RBP: ffffc90000d67ac8 R08: ffffc90000d679cf R09: ffffc90000d679c8
R10: dffffc0000000000 R11: fffff520001acf3a R12: 00000000fffffff2
R13: 0000000000000020 R14: 1ffff920001acf44 R15: dffffc0000000000
FS:  00007f0af68766c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000115fea000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 __perf_event_overflow+0x19d/0x350 kernel/events/core.c:9086
 perf_swevent_overflow kernel/events/core.c:9162 [inline]
 perf_swevent_event+0x2f5/0x540 kernel/events/core.c:-1
 do_perf_sw_event kernel/events/core.c:9303 [inline]
 ___perf_sw_event+0x394/0x4c0 kernel/events/core.c:9334
 __perf_sw_event+0x134/0x270 kernel/events/core.c:9346
 perf_sw_event include/linux/perf_event.h:1179 [inline]
 do_user_addr_fault+0xdfb/0xe20 arch/x86/mm/fault.c:1236
 handle_page_fault arch/x86/mm/fault.c:1436 [inline]
 exc_page_fault+0x5a/0xc0 arch/x86/mm/fault.c:1492
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571
RIP: 0033:0x7f0af7ce3054
Code: 00 00 00 64 f0 83 04 25 a0 ff ff ff 01 64 48 8b 04 25 00 00 00 00 48 8d b8 d8 fe ff ff e8 74 b1 0d 00 85 c0 0f 84 ec 01 00 00 <64> f0 83 2c 25 a0 ff ff ff 01 e8 1d 93 0c 00 48 8b 4c 24 08 8b 00
RSP: 002b:00007f0af6876050 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 00007f0af80a4fa0 RCX: 00007f0af7eb4024
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000009
RBP: 00007f0af7eb4024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0af80a5038 R14: 00007f0af80a4fa0 R15: 00007ffea52a2588
Modules linked in:
---[ end trace a434557c27ec8b83 ]---
RIP: 0010:bpf_overflow_handler+0x288/0x370 kernel/events/core.c:9862
Code: ff 55 00 41 89 c4 42 80 3c 3b 00 74 0a 48 8b 7c 24 10 e8 9b 5c 1a 00 48 8b 44 24 10 4c 8b 28 49 83 c5 20 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 ef e8 79 5c 1a 00 bb 70 02 00 00 49 03
RSP: 0000:ffffc90000d679e0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110254d2579 RCX: 0000000000000000
RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffffc90000d679d0
RBP: ffffc90000d67ac8 R08: ffffc90000d679cf R09: ffffc90000d679c8
R10: dffffc0000000000 R11: fffff520001acf3a R12: 00000000fffffff2
R13: 0000000000000020 R14: 1ffff920001acf44 R15: dffffc0000000000
FS:  00007f0af68766c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000115fea000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	ff 55 00             	call   *0x0(%rbp)
   3:	41 89 c4             	mov    %eax,%r12d
   6:	42 80 3c 3b 00       	cmpb   $0x0,(%rbx,%r15,1)
   b:	74 0a                	je     0x17
   d:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
  12:	e8 9b 5c 1a 00       	call   0x1a5cb2
  17:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
  1c:	4c 8b 28             	mov    (%rax),%r13
  1f:	49 83 c5 20          	add    $0x20,%r13
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 79 5c 1a 00       	call   0x1a5cb2
  39:	bb 70 02 00 00       	mov    $0x270,%ebx
  3e:	49                   	rex.WB
  3f:	03                   	.byte 0x3