x_tables: ip6_tables: TCPMSS target: only valid for protocol 6
x_tables: ip6_tables: TCPMSS target: only valid for protocol 6
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: 1 PID: 4430 Comm: syz-executor.0 Not tainted 4.19.206-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 df 23 85 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 e0 23 85 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 97 23 85 04 49 8d 7d
RSP: 0018:ffff8880a16ffd70 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888099096500 RCX: ffffffff814bed1b
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880990969d0
RBP: ffff8880990969c8 R08: 0000000000000001 R09: ffffed1015d0a9e5
R10: ffff8880ae854f2b R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880990969c8 R15: ffff8880990969d0
FS:  00007fc954a09700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020016038 CR3: 0000000045fd7000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del_rcu include/linux/rculist.h:130 [inline]
 xdp_del_sk_umem+0x72/0x1a0 net/xdp/xdp_umem.c:42
 xsk_release+0x128/0x350 net/xdp/xsk.c:344
 __sock_release+0xcd/0x2a0 net/socket.c:599
 sock_close+0x15/0x20 net/socket.c:1214
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc957492739
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:00007fc954a09188 EFLAGS: 00000246 ORIG_RAX: 0000000000000021
RAX: 0000000000000003 RBX: 00007fc957596f80 RCX: 00007fc957492739
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007fc9574eccc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc957596f80
R13: 00007ffe7f31b9cf R14: 00007fc954a09300 R15: 0000000000022000
Modules linked in:
---[ end trace cf43fc448b134157 ]---
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 df 23 85 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 e0 23 85 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 97 23 85 04 49 8d 7d
RSP: 0018:ffff8880a16ffd70 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888099096500 RCX: ffffffff814bed1b
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880990969d0
RBP: ffff8880990969c8 R08: 0000000000000001 R09: ffffed1015d0a9e5
R10: ffff8880ae854f2b R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880990969c8 R15: ffff8880990969d0
FS:  00007fc954a09700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020016038 CR3: 0000000045fd7000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 84 df 23 85 04    	je     0x48523e5
   6:	48 b8 00 02 00 00 00 	movabs $0xdead000000000200,%rax
   d:	00 ad de
  10:	49 39 c4             	cmp    %rax,%r12
  13:	0f 84 e0 23 85 04    	je     0x48523f9
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 e2             	mov    %r12,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	75 51                	jne    0x81
  30:	49 8b 14 24          	mov    (%r12),%rdx
  34:	48 39 ea             	cmp    %rbp,%rdx
  37:	0f 85 97 23 85 04    	jne    0x48523d4
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	7d                   	.byte 0x7d