vmalloc memory
list_del corruption. prev->next should be ffffe8ffffc7a5d8, but was ffffe8ffffc7a5e4. (prev=ffffe8ffffd7a5d8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:64!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 9336 Comm: kworker/u8:15 Not tainted 6.15.0-rc5-syzkaller-00300-g3ce9925823c7 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: netns cleanup_net
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 7b 7a 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 dc 4a 63 fd 49 8b 17 48 c7 c7 80 d7 c1 8b 48 89 de 4c 89 f9 e8 27 17 69 fc 90 <0f> 0b 4c 89 f7 e8 4c 7a 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 ad
RSP: 0018:ffffc900045cf840 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffffe8ffffc7a5d8 RCX: 156f7a2d5cd39a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc900045cf527 R09: 1ffff920008b9ea4
R10: dffffc0000000000 R11: fffff520008b9ea5 R12: 1ffffd1ffffaf4bb
R13: dffffc0000000000 R14: ffff8880651d0168 R15: ffffe8ffffd7a5d8
FS:  0000000000000000(0000) GS:ffff8881260cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31b1dff8 CR3: 000000003834f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del_rcu include/linux/rculist.h:168 [inline]
 __netif_napi_del_locked+0x1ed/0x3c0 net/core/dev.c:7298
 __netif_napi_del include/linux/netdevice.h:2876 [inline]
 gro_cells_destroy+0x16a/0x430 net/core/gro_cells.c:117
 ip6gre_dev_free+0x19/0x30 net/ipv6/ip6_gre.c:1445
 netdev_run_todo+0xcd7/0xea0 net/core/dev.c:11298
 cleanup_net+0x6a8/0xbd0 net/core/net_namespace.c:650
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xade/0x17a0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x4e/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 7b 7a 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 dc 4a 63 fd 49 8b 17 48 c7 c7 80 d7 c1 8b 48 89 de 4c 89 f9 e8 27 17 69 fc 90 <0f> 0b 4c 89 f7 e8 4c 7a 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 ad
RSP: 0018:ffffc900045cf840 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffffe8ffffc7a5d8 RCX: 156f7a2d5cd39a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc900045cf527 R09: 1ffff920008b9ea4
R10: dffffc0000000000 R11: fffff520008b9ea5 R12: 1ffffd1ffffaf4bb
R13: dffffc0000000000 R14: ffff8880651d0168 R15: ffffe8ffffd7a5d8
FS:  0000000000000000(0000) GS:ffff8881261cb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78a4f89368 CR3: 000000002eeef000 CR4: 0000000000350ef0