------------[ cut here ]------------ kernel BUG at net/core/gro.c:424! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 8428 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-12071-g66ad4829ddd0 #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: ff d3 66 90 e9 ea fa ff ff 44 89 f1 80 e1 07 38 c1 0f 8c f1 f9 ff ff 4c 89 f7 e8 3c b2 92 f8 e9 e4 f9 ff ff e8 82 05 2d 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:ffffc90000007b08 EFLAGS: 00010246 RAX: ffffffff89690efe RBX: 00000000000000be RCX: ffff88802a793c00 RDX: 0000000000000101 RSI: 0000000000000008 RDI: 0000000000000002 RBP: 0000000000000002 R08: ffffffff8969016b R09: 1ffffffff1f5a69d R10: dffffc0000000000 R11: fffffbfff1f5a69e R12: 1ffff1100507925e R13: 0000000000000008 R14: ffff8880283c92f4 R15: 1ffff11005079269 FS: 00007fdd91df26c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000206b5000 CR3: 0000000054b00000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: napi_gro_receive+0x3c3/0xc90 net/core/gro.c:639 gro_cell_poll+0x13c/0x1c0 net/core/gro_cells.c:61 __napi_poll+0xcb/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+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __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 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590