general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 1 PID: 2140 Comm: syz.6.564 Not tainted 5.10.236-syzkaller-00012-gab07aeb2c93d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:bpf_overflow_handler+0x292/0x3a0 kernel/events/core.c:9841
Code: 00 74 0a 48 8b 7c 24 18 e8 8b 20 1a 00 48 8b 44 24 18 4c 8b 28 49 83 c5 20 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 60 20 1a 00 bb 70 02 00 00 49 03 5d
RSP: 0018:ffffc90000f67600 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110220a7a79 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000f67700 R08: ffffffff86c70048 R09: ffffffff86c70058
R10: ffffffff86c7005c R11: ffffffff86c70043 R12: 00000000a65b51f1
R13: 0000000000000020 R14: ffff88811053d000 R15: 1ffff920001ecec8
FS: 00007f5480eda6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000389000 CR3: 0000000117f57000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__perf_event_overflow+0x1b3/0x340 kernel/events/core.c:9065
perf_swevent_overflow kernel/events/core.c:9141 [inline]
perf_swevent_event+0x2f7/0x530 kernel/events/core.c:-1
do_perf_sw_event kernel/events/core.c:9282 [inline]
___perf_sw_event+0x377/0x470 kernel/events/core.c:9313
__perf_sw_event+0x134/0x270 kernel/events/core.c:9325
perf_sw_event include/linux/perf_event.h:1179 [inline]
do_user_addr_fault+0xc6a/0xc80 arch/x86/mm/fault.c:1255
handle_page_fault arch/x86/mm/fault.c:1428 [inline]
exc_page_fault+0x5a/0xc0 arch/x86/mm/fault.c:1484
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:206
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 90 90 90 89 d1 83 f8
RSP: 0018:ffffc90000f67c20 EFLAGS: 00050206
RAX: ffffffff823a2001 RBX: 00000000000009fd RCX: 0000000000000542
RDX: 00000000000009fd RSI: 0000200000389000 RDI: ffff888116daa4bb
RBP: ffffc90000f67c50 R08: 0000000000000005 R09: 0000000000000004
R10: ffffed1022db553f R11: 0000000000000138 R12: 00007ffffffff000
R13: 0000200000389542 R14: ffff888116daa000 R15: 0000200000388b45
copy_from_user include/linux/uaccess.h:192 [inline]
generic_map_update_batch+0x4a4/0x740 kernel/bpf/syscall.c:1369
bpf_map_do_batch+0x463/0x5f0 kernel/bpf/syscall.c:-1
__do_sys_bpf kernel/bpf/syscall.c:4496 [inline]
__se_sys_bpf+0x55a/0x680 kernel/bpf/syscall.c:4388
__x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:4388
do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f5481469969
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:00007f5480eda038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f5481690fa0 RCX: 00007f5481469969
RDX: 0000000000000038 RSI: 0000200000000300 RDI: 000000000000001a
RBP: 00007f54814ebab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5481690fa0 R15: 00007ffc9f9acbf8
Modules linked in:
---[ end trace 96d77dd3c469849b ]---
RIP: 0010:bpf_overflow_handler+0x292/0x3a0 kernel/events/core.c:9841
Code: 00 74 0a 48 8b 7c 24 18 e8 8b 20 1a 00 48 8b 44 24 18 4c 8b 28 49 83 c5 20 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 60 20 1a 00 bb 70 02 00 00 49 03 5d
RSP: 0018:ffffc90000f67600 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 1ffff110220a7a79 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000f67700 R08: ffffffff86c70048 R09: ffffffff86c70058
R10: ffffffff86c7005c R11: ffffffff86c70043 R12: 00000000a65b51f1
R13: 0000000000000020 R14: ffff88811053d000 R15: 1ffff920001ecec8
FS: 00007f5480eda6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000389000 CR3: 0000000117f57000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 74 0a 48 add %dh,0x48(%rdx,%rcx,1)
4: 8b 7c 24 18 mov 0x18(%rsp),%edi
8: e8 8b 20 1a 00 call 0x1a2098
d: 48 8b 44 24 18 mov 0x18(%rsp),%rax
12: 4c 8b 28 mov (%rax),%r13
15: 49 83 c5 20 add $0x20,%r13
19: 4c 89 e8 mov %r13,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 ef mov %r13,%rdi
33: e8 60 20 1a 00 call 0x1a2098
38: bb 70 02 00 00 mov $0x270,%ebx
3d: 49 rex.WB
3e: 03 .byte 0x3
3f: 5d pop %rbp