kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 341 Comm: syz-executor136 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:____bpf_skb_cgroup_id net/core/filter.c:4150 [inline]
RIP: 0010:bpf_skb_cgroup_id+0x118/0x1a0 net/core/filter.c:4141
Code: a0 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 38 44 26 fe 41 be 40 01 00 00 4c 03 33 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 19 44 26 fe 49 8b 1e 48 83 c3 68
RSP: 0018:ffff8881d9a27b00 EFLAGS: 00010206
RAX: 0000000000000028 RBX: ffff8881ef6f32a0 RCX: ffff8881f37d3f00
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
RBP: ffff8881d9a27b18 R08: ffff8881d9a27d20 R09: ffffed103dda7815
R10: ffffed103dda7815 R11: 1ffff1103dda7814 R12: dffffc0000000000
R13: ffffc90000044020 R14: 0000000000000140 R15: dffffc0000000000
FS:  00005555742d4380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000064a110 CR3: 00000001ef03a000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace f6641a891005655b ]---
RIP: 0010:____bpf_skb_cgroup_id net/core/filter.c:4150 [inline]
RIP: 0010:bpf_skb_cgroup_id+0x118/0x1a0 net/core/filter.c:4141
Code: a0 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 38 44 26 fe 41 be 40 01 00 00 4c 03 33 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 19 44 26 fe 49 8b 1e 48 83 c3 68
RSP: 0018:ffff8881d9a27b00 EFLAGS: 00010206
RAX: 0000000000000028 RBX: ffff8881ef6f32a0 RCX: ffff8881f37d3f00
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
RBP: ffff8881d9a27b18 R08: ffff8881d9a27d20 R09: ffffed103dda7815
R10: ffffed103dda7815 R11: 1ffff1103dda7814 R12: dffffc0000000000
R13: ffffc90000044020 R14: 0000000000000140 R15: dffffc0000000000
FS:  00005555742d4380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000064a110 CR3: 00000001ef03a000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	a0 02 00 00 48 89 d8 	movabs 0xc148d88948000002,%al
   7:	48 c1
   9:	e8 03 42 80 3c       	call   0x3c804211
   e:	38 00                	cmp    %al,(%rax)
  10:	74 08                	je     0x1a
  12:	48 89 df             	mov    %rbx,%rdi
  15:	e8 38 44 26 fe       	call   0xfe264452
  1a:	41 be 40 01 00 00    	mov    $0x140,%r14d
  20:	4c 03 33             	add    (%rbx),%r14
  23:	4c 89 f0             	mov    %r14,%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 f7             	mov    %r14,%rdi
  34:	e8 19 44 26 fe       	call   0xfe264452
  39:	49 8b 1e             	mov    (%r14),%rbx
  3c:	48 83 c3 68          	add    $0x68,%rbx