------------[ cut here ]------------ WARNING: CPU: 0 PID: 8933 at net/core/dev.c:6076 napi_complete_done+0x45b/0x880 net/core/dev.c:6076 Modules linked in: CPU: 0 PID: 8933 Comm: syz-executor.5 Not tainted 6.1.0-rc3-syzkaller-00175-g1118b2049d77 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:napi_complete_done+0x45b/0x880 net/core/dev.c:6076 Code: c1 ea 03 0f b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 24 04 00 00 41 89 5d 1c e9 73 fc ff ff e8 b5 53 22 fa <0f> 0b e9 82 fe ff ff e8 a9 53 22 fa 48 8b 5c 24 08 31 ff 48 89 de RSP: 0018:ffffc90005aafb08 EFLAGS: 00010216 RAX: 00000000000021ab RBX: 0000000000000030 RCX: ffffc90004202000 RDX: 0000000000040000 RSI: ffffffff875a58db RDI: 0000000000000007 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807d82a628 R13: ffff88807d82a618 R14: ffff88807d82a634 R15: 0000000000000000 FS: 00007fabe7427700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e826000 CR3: 0000000028c7d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: napi_complete include/linux/netdevice.h:510 [inline] tun_get_user+0x206d/0x3a60 drivers/net/tun.c:1980 tun_chr_write_iter+0xdb/0x200 drivers/net/tun.c:2027 call_write_iter include/linux/fs.h:2191 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9e9/0xdd0 fs/read_write.c:584 ksys_write+0x127/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fabe668b5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fabe7427168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fabe67abf80 RCX: 00007fabe668b5a9 RDX: 0000000000000026 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007fabe66e67b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff509c8ef R14: 00007fabe7427300 R15: 0000000000022000