executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff88812526f300 (size 224): comm "syz-executor155", pid 6588, jiffies 4294946693 (age 12.930s) hex dump (first 32 bytes): a0 e4 f1 27 81 88 ff ff a0 e4 f1 27 81 88 ff ff ...'.......'.... 00 00 39 25 81 88 ff ff 00 00 00 00 00 00 00 00 ..9%............ backtrace: [<000000009421b92d>] __build_skb+0x1f/0x100 net/core/skbuff.c:311 [<00000000ef26a997>] __napi_alloc_skb+0xe5/0x140 net/core/skbuff.c:523 [<000000004aae6d74>] napi_alloc_skb include/linux/skbuff.h:2865 [inline] [<000000004aae6d74>] napi_get_frags net/core/dev.c:6053 [inline] [<000000004aae6d74>] napi_get_frags+0x3a/0x70 net/core/dev.c:6048 [<000000006186fda6>] tun_napi_alloc_frags drivers/net/tun.c:1425 [inline] [<000000006186fda6>] tun_get_user+0xa43/0x1660 drivers/net/tun.c:1789 [<00000000d89c4500>] tun_chr_write_iter+0x66/0xa0 drivers/net/tun.c:1986 [<00000000291022c2>] call_write_iter include/linux/fs.h:1882 [inline] [<00000000291022c2>] new_sync_write+0x173/0x210 fs/read_write.c:503 [<00000000e972cba6>] vfs_write+0x21d/0x280 fs/read_write.c:578 [<000000008099ec9e>] ksys_write+0x72/0x120 fs/read_write.c:631 [<00000000361d19df>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000f255aac6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9