kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1878 Comm: syz-executor517 Not tainted 5.4.23-syzkaller-00008-gd0dbb0adbf9a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:____bpf_skb_cgroup_id net/core/filter.c:4094 [inline]
RIP: 0010:bpf_skb_cgroup_id+0x110/0x190 net/core/filter.c:4085
Code: c7 90 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 5f 4f 8c fe bb 20 01 00 00 49 03 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 41 4f 8c fe 48 8b 1b 48 83 c3 68
RSP: 0018:ffff8881d29a76b8 EFLAGS: 00010206
RAX: 0000000000000024 RBX: 0000000000000120 RCX: ffff8881d1a18ec0
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
RBP: ffff8881d29a76d8 R08: ffffffff82e4a9a7 R09: fffffbfff093417d
R10: fffffbfff093417d R11: 0000000000000000 R12: dffffc0000000000
R13: fffffffbb3937cd0 R14: ffff8881c4ed1812 R15: ffff8881c4ed1a90
FS:  0000000002287880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000d000 CR3: 00000001d056e002 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bpf_prog_f6df238ac16548fe+0xeea/0x1000
 bpf_call_func include/linux/filter.h:608 [inline]
 bpf_test_run+0x2c0/0x6a0 net/bpf/test_run.c:44
 bpf_prog_test_run_skb+0x7a6/0x10e0 net/bpf/test_run.c:310
 bpf_prog_test_run kernel/bpf/syscall.c:2120 [inline]
 __do_sys_bpf+0x31e8/0xbbc0 kernel/bpf/syscall.c:2896
 __se_sys_bpf kernel/bpf/syscall.c:2837 [inline]
 __x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2837
 do_syscall_64+0xc0/0x100 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x440399
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffdf8e27318 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440399
RDX: 0000000000000028 RSI: 00000000200001c0 RDI: 000000000000000a
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c20
R13: 0000000000401cb0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace a7350adde550959a ]---
RIP: 0010:____bpf_skb_cgroup_id net/core/filter.c:4094 [inline]
RIP: 0010:bpf_skb_cgroup_id+0x110/0x190 net/core/filter.c:4085
Code: c7 90 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 5f 4f 8c fe bb 20 01 00 00 49 03 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 41 4f 8c fe 48 8b 1b 48 83 c3 68
RSP: 0018:ffff8881d29a76b8 EFLAGS: 00010206
RAX: 0000000000000024 RBX: 0000000000000120 RCX: ffff8881d1a18ec0
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
RBP: ffff8881d29a76d8 R08: ffffffff82e4a9a7 R09: fffffbfff093417d
R10: fffffbfff093417d R11: 0000000000000000 R12: dffffc0000000000
R13: fffffffbb3937cd0 R14: ffff8881c4ed1812 R15: ffff8881c4ed1a90
FS:  0000000002287880(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000d000 CR3: 00000001d056e002 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400