BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 6f43d067 P4D 6f43d067 PUD 18ce0067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8715 Comm: syz-executor.3 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc9000bb67cc0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 1ffff9200176cf9f RCX: ffffffff81597b74
RDX: 1ffffffff11a57f6 RSI: 0000000000000000 RDI: ffff88807d8fbc00
RBP: ffffc9000bb67f08 R08: 0000000000000000 R09: ffff8880b9f329cb
R10: ffffed10173e6539 R11: 0000000000000001 R12: ffff88807296b180
R13: ffff88807d8fbc00 R14: 0000000000000000 R15: ffffffff88d2bf40
FS:  00007f136831c700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000001cf64000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 map_delete_elem kernel/bpf/syscall.c:1220 [inline]
 __sys_bpf+0x274d/0x4540 kernel/bpf/syscall.c:4606
 __do_sys_bpf kernel/bpf/syscall.c:4719 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4717 [inline]
 __x64_sys_bpf+0x70/0xb0 kernel/bpf/syscall.c:4717
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1368ba6ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f136831c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1368cb9f60 RCX: 00007f1368ba6ae9
RDX: 0000000000000020 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f1368c00f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe14c9f00f R14: 00007f136831c300 R15: 0000000000022000
Modules linked in:
CR2: 0000000000000000
---[ end trace fbf65d2d59b6e5b5 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc9000bb67cc0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 1ffff9200176cf9f RCX: ffffffff81597b74
RDX: 1ffffffff11a57f6 RSI: 0000000000000000 RDI: ffff88807d8fbc00
RBP: ffffc9000bb67f08 R08: 0000000000000000 R09: ffff8880b9f329cb
R10: ffffed10173e6539 R11: 0000000000000001 R12: ffff88807296b180
R13: ffff88807d8fbc00 R14: 0000000000000000 R15: ffffffff88d2bf40
FS:  00007f136831c700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000001cf64000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400