------------[ cut here ]------------
WARNING: CPU: 1 PID: 7650 at net/ipv4/udp_offload.c:118 udp_tunnel_update_gro_rcv+0x31d/0x670 net/ipv4/udp_offload.c:118
Modules linked in:
CPU: 1 UID: 0 PID: 7650 Comm: syz.1.810 Not tainted 6.14.0-rc6-syzkaller-01340-g3d97da0ee625 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:udp_tunnel_update_gro_rcv+0x31d/0x670 net/ipv4/udp_offload.c:118
Code: 23 48 89 eb e8 e4 3a 4f f7 c7 05 9a 9d 32 10 01 00 00 00 31 ed 45 31 ed e9 80 01 00 00 e8 cb 3a 4f f7 eb 40 e8 c4 3a 4f f7 90 <0f> 0b 90 e9 5a 02 00 00 e8 b6 3a 4f f7 eb 2b e8 af 3a 4f f7 eb 24
RSP: 0018:ffffc9000cbc7820 EFLAGS: 00010293
RAX: ffffffff8a72b73e RBX: 1ffff110045f50cf RCX: ffff88802e583c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 1ffff110045f50cf R08: ffffffff8a72b255 R09: 1ffffffff207a34e
R10: dffffc0000000000 R11: fffffbfff207a34f R12: dffffc0000000000
R13: 0000000000000001 R14: ffff888022fa8678 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f22de3a7bac CR3: 000000003544c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udp_tunnel_cleanup_gro include/net/udp_tunnel.h:220 [inline]
 udp_destroy_sock+0x2c9/0x340 net/ipv4/udp.c:2896
 sk_common_release+0x71/0x2e0 net/core/sock.c:3896
 inet_release+0x17d/0x200 net/ipv4/af_inet.c:435
 __sock_release net/socket.c:647 [inline]
 sock_close+0xbc/0x240 net/socket.c:1389
 __fput+0x3e9/0x9f0 fs/file_table.c:464
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x28e0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 get_signal+0x168c/0x1720 kernel/signal.c:3036
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f657d58d169
Code: Unable to access opcode bytes at 0x7f657d58d13f.
RSP: 002b:00007f657e3420e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f657d7a5fa8 RCX: 00007f657d58d169
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f657d7a5fac
RBP: 00007f657d7a5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f657d7a5fac
R13: 0000000000000000 R14: 00007ffdb3fa2080 R15: 00007ffdb3fa2168
 </TASK>