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: 28532 Comm: syz.5.45347 Tainted: G        W         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:ffffc9000193f9e0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110289a3b79 RCX: c6386ece3cb63c00
RDX: ffffc90006b00000 RSI: 0000000000000a06 RDI: 00000000ffffffff
RBP: ffffc9000193fac8 R08: ffff8881000554b7 R09: 1ffff1102000aa96
R10: dffffc0000000000 R11: ffffed102000aa97 R12: 0000000000000004
R13: 0000000000000020 R14: 1ffff92000327f44 R15: dffffc0000000000
FS:  00007f47600116c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4761840028 CR3: 0000000143c71000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000602
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: 0033:0x7f476147e1fd
Code: fe ff 48 83 c4 78 5b 5d 41 5c 41 5e c3 48 8b 44 24 20 48 8b 5c 24 08 48 8b b0 88 00 00 00 8b 78 08 48 8d 53 30 e8 63 39 ff ff <48> 89 83 88 00 00 00 e9 35 fe ff ff 0f 1f 80 00 00 00 00 8b 7c 24
RSP: 002b:00007f4760011050 EFLAGS: 00010206
RAX: 0000000000000012 RBX: 00007f476183ffa0 RCX: 00007f476164f00c
RDX: 0000000000000000 RSI: 0000200000000c40 RDI: 0000000000000009
RBP: 00007f476164f00c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4761840038 R14: 00007f476183ffa0 R15: 00007ffd73702138
Modules linked in:
---[ end trace 726e324bfd51a9f0 ]---
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:ffffc9000193f9e0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110289a3b79 RCX: c6386ece3cb63c00
RDX: ffffc90006b00000 RSI: 0000000000000a06 RDI: 00000000ffffffff
RBP: ffffc9000193fac8 R08: ffff8881000554b7 R09: 1ffff1102000aa96
R10: dffffc0000000000 R11: ffffed102000aa97 R12: 0000000000000004
R13: 0000000000000020 R14: 1ffff92000327f44 R15: dffffc0000000000
FS:  00007f47600116c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4761840028 CR3: 0000000143c71000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000602
----------------
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