general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]
CPU: 0 PID: 3665 Comm: syz-executor195 Not tainted 5.18.0-rc6-next-20220513-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_clone+0x107/0x3c0 net/core/skbuff.c:1504
Code: 00 00 49 8b 5c 24 28 48 85 db 0f 85 ec 00 00 00 e8 de 44 2a fa 4c 8d 7d 7e 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <0f> b6 04 02 4c 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d3 01 00 00
RSP: 0018:ffffc90002faf488 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffffc90002faf598 RCX: 0000000000000000
RDX: 000000000000000f RSI: ffffffff87506512 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000140 R09: ffffffff8bee7233
R10: fffffbfff17dce46 R11: 0000000000000000 R12: ffff88801c18d140
R13: 0000000000000820 R14: ffff88801c18d210 R15: 000000000000007e
FS:  000055555677f300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8fc9522a4 CR3: 0000000076b93000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hsr_get_untagged_frame+0x4e/0x5b0 net/hsr/hsr_forward.c:164
 hsr_forward_do net/hsr/hsr_forward.c:461 [inline]
 hsr_forward_skb+0xc7a/0x1c60 net/hsr/hsr_forward.c:623
 hsr_handle_frame+0x55c/0x780 net/hsr/hsr_slave.c:69
 __netif_receive_skb_core+0xa13/0x3920 net/core/dev.c:5367
 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5471
 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5587
 netif_receive_skb_internal net/core/dev.c:5673 [inline]
 netif_receive_skb+0x13e/0x8e0 net/core/dev.c:5732
 tun_rx_batched.isra.0+0x460/0x720 drivers/net/tun.c:1533
 tun_get_user+0x26cc/0x3b00 drivers/net/tun.c:1984
 tun_chr_write_iter+0xdb/0x200 drivers/net/tun.c:2014
 call_write_iter include/linux/fs.h:2060 [inline]
 new_sync_write+0x38a/0x560 fs/read_write.c:504
 vfs_write+0x7c0/0xac0 fs/read_write.c:591
 ksys_write+0x127/0x250 fs/read_write.c:644
 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+0x46/0xb0
RIP: 0033:0x7fa8fc8b2d63
Code: e9 0e ec ff ff bf 01 00 00 00 e8 a8 6f 00 00 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007fff74714c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa8fc8b2d63
RDX: 000000000000000e RSI: 0000000020000100 RDI: 00000000000000c8
RBP: 00007fff74714c60 R08: 0000000000000000 R09: 0000000000000001
R10: 00007fff747149d7 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fff74714c80 R14: 00007fff74714c70 R15: 00007fff74714c4c
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_clone+0x107/0x3c0 net/core/skbuff.c:1504
Code: 00 00 49 8b 5c 24 28 48 85 db 0f 85 ec 00 00 00 e8 de 44 2a fa 4c 8d 7d 7e 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <0f> b6 04 02 4c 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d3 01 00 00
RSP: 0018:ffffc90002faf488 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffffc90002faf598 RCX: 0000000000000000
RDX: 000000000000000f RSI: ffffffff87506512 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000140 R09: ffffffff8bee7233
R10: fffffbfff17dce46 R11: 0000000000000000 R12: ffff88801c18d140
R13: 0000000000000820 R14: ffff88801c18d210 R15: 000000000000007e
FS:  000055555677f300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8fc9522a4 CR3: 0000000076b93000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	49 8b 5c 24 28       	mov    0x28(%r12),%rbx
   7:	48 85 db             	test   %rbx,%rbx
   a:	0f 85 ec 00 00 00    	jne    0xfc
  10:	e8 de 44 2a fa       	callq  0xfa2a44f3
  15:	4c 8d 7d 7e          	lea    0x7e(%rbp),%r15
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 fa             	mov    %r15,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	4c 89 fa             	mov    %r15,%rdx
  31:	83 e2 07             	and    $0x7,%edx
  34:	38 d0                	cmp    %dl,%al
  36:	7f 08                	jg     0x40
  38:	84 c0                	test   %al,%al
  3a:	0f 85 d3 01 00 00    	jne    0x213