list_del corruption. prev->next should be ffffe8ffffc7b6c0, but was ffffe8ffffc7b881
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:51!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4606 Comm: syz-executor.4 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid.cold+0xf/0x55 lib/list_debug.c:51
Code: e8 ea d6 be fd 0f 0b 48 89 f1 48 c7 c7 a0 10 94 88 4c 89 e6 e8 d6 d6 be fd 0f 0b 48 89 ee 48 c7 c7 40 12 94 88 e8 c5 d6 be fd <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 80 11 94 88 e8 b1 d6 be fd 0f 0b
RSP: 0018:ffffc90006157c20 EFLAGS: 00010286
RAX: 0000000000000054 RBX: ffffe8ffffc7b6c0 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff815dafc7 RDI: fffff52000c2af76
RBP: ffffe8ffffc7b6c0 R08: 0000000000000054 R09: ffff8880ae6318e7
R10: 0000000000000000 R11: 0000000000000000 R12: ffffe8ffffd7b6c0
R13: ffff88808fada0f0 R14: ffff88808fadacd8 R15: ffffe8ffffc7b560
FS:  00007f6b6093e700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000306c CR3: 00000000a8ca8000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 __list_del_entry include/linux/list.h:132 [inline]
 list_del_init include/linux/list.h:204 [inline]
 netif_napi_del+0x5b/0x380 net/core/dev.c:6660
 gro_cells_destroy net/core/gro_cells.c:102 [inline]
 gro_cells_destroy+0x10b/0x340 net/core/gro_cells.c:92
 ip6_dev_free+0x15/0x60 net/ipv6/ip6_tunnel.c:275
 netdev_run_todo+0x6be/0xac0 net/core/dev.c:10101
 dev_ioctl+0x287/0xc40 net/core/dev_ioctl.c:537
 sock_ioctl+0x57b/0x730 net/socket.c:1112
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f6b6093dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000012e00 RCX: 000000000045d4d9
RDX: 0000000020000000 RSI: 00000000000089f2 RDI: 0000000000000006
RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec
R13: 00007ffcb465958f R14: 00007f6b6093e9c0 R15: 000000000118cfec
Modules linked in:
---[ end trace ae4815d33b686458 ]---
RIP: 0010:__list_del_entry_valid.cold+0xf/0x55 lib/list_debug.c:51
Code: e8 ea d6 be fd 0f 0b 48 89 f1 48 c7 c7 a0 10 94 88 4c 89 e6 e8 d6 d6 be fd 0f 0b 48 89 ee 48 c7 c7 40 12 94 88 e8 c5 d6 be fd <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 80 11 94 88 e8 b1 d6 be fd 0f 0b
RSP: 0018:ffffc90006157c20 EFLAGS: 00010286
RAX: 0000000000000054 RBX: ffffe8ffffc7b6c0 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff815dafc7 RDI: fffff52000c2af76
RBP: ffffe8ffffc7b6c0 R08: 0000000000000054 R09: ffff8880ae6318e7
R10: 0000000000000000 R11: 0000000000000000 R12: ffffe8ffffd7b6c0
R13: ffff88808fada0f0 R14: ffff88808fadacd8 R15: ffffe8ffffc7b560
FS:  00007f6b6093e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdfab982db8 CR3: 00000000a8ca8000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600