------------[ cut here ]------------
kernel BUG at net/core/gro.c:424!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 16556 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:gro_pull_from_frag0 net/core/gro.c:424 [inline]
RIP: 0010:gro_try_pull_from_frag0 net/core/gro.c:446 [inline]
RIP: 0010:dev_gro_receive+0x242f/0x24b0 net/core/gro.c:571
Code: 97 b3 28 02 e9 ea fa ff ff 44 89 f1 80 e1 07 38 c1 0f 8c f1 f9 ff ff 4c 89 f7 e8 3c 12 91 f8 e9 e4 f9 ff ff e8 02 3b 2b f8 90 <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 19 fa ff ff 48 89 df e8 48
RSP: 0018:ffffc90000007ae8 EFLAGS: 00010246
RAX: ffffffff896af6ee RBX: 00000000000000be RCX: ffff888062663c00
RDX: 0000000080000101 RSI: 0000000000000008 RDI: 0000000000000002
RBP: 0000000000000002 R08: ffffffff896ae95b R09: 1ffffffff1f5a715
R10: dffffc0000000000 R11: fffffbfff1f5a716 R12: 1ffff1100fbb5c36
R13: 0000000000000008 R14: ffff88807ddae1b4 R15: 1ffff1100fbb5c41
FS:  00007f30134026c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c228000 CR3: 0000000066fd6000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 napi_gro_receive+0x3c3/0xc90 net/core/gro.c:639
 gro_cell_poll+0x13c/0x1c0 net/core/gro_cells.c:61
 __napi_poll+0xcd/0x490 net/core/dev.c:6721
 napi_poll net/core/dev.c:6790 [inline]
 net_rx_action+0x7bb/0x10a0 net/core/dev.c:6906
 handle_softirqs+0x2d8/0x990 kernel/softirq.c:554
 do_softirq+0x11b/0x1e0 kernel/softirq.c:455
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
 tun_rx_batched+0x732/0x8f0
 tun_get_user+0x2f35/0x4560 drivers/net/tun.c:2002
 tun_chr_write_iter+0x113/0x1f0 drivers/net/tun.c:2048
 call_write_iter include/linux/fs.h:2114 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa74/0xc90 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f301267bc2f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 b9 80 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 0c 81 02 00 48
RSP: 002b:00007f3013402090 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f30127abf80 RCX: 00007f301267bc2f
RDX: 000000000000007e RSI: 0000000020000580 RDI: 00000000000000c8
RBP: 00007f30126c949e R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000007e R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f30127abf80 R15: 00007fff28528848
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gro_pull_from_frag0 net/core/gro.c:424 [inline]
RIP: 0010:gro_try_pull_from_frag0 net/core/gro.c:446 [inline]
RIP: 0010:dev_gro_receive+0x242f/0x24b0 net/core/gro.c:571
Code: 97 b3 28 02 e9 ea fa ff ff 44 89 f1 80 e1 07 38 c1 0f 8c f1 f9 ff ff 4c 89 f7 e8 3c 12 91 f8 e9 e4 f9 ff ff e8 02 3b 2b f8 90 <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 19 fa ff ff 48 89 df e8 48
RSP: 0018:ffffc90000007ae8 EFLAGS: 00010246
RAX: ffffffff896af6ee RBX: 00000000000000be RCX: ffff888062663c00
RDX: 0000000080000101 RSI: 0000000000000008 RDI: 0000000000000002
RBP: 0000000000000002 R08: ffffffff896ae95b R09: 1ffffffff1f5a715
R10: dffffc0000000000 R11: fffffbfff1f5a716 R12: 1ffff1100fbb5c36
R13: 0000000000000008 R14: ffff88807ddae1b4 R15: 1ffff1100fbb5c41
FS:  00007f30134026c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c228000 CR3: 0000000066fd6000 CR4: 0000000000350ef0