Warning: Permanently added '10.128.0.220' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 81.121932][ T8475] syz-executor019 uses obsolete (PF_INET,SOCK_PACKET) executing program executing program executing program executing program executing program [ 111.248374][ T8474] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810ddf3300 (size 232): comm "syz-executor019", pid 8658, jiffies 4294947722 (age 13.540s) hex dump (first 32 bytes): a0 a4 29 08 81 88 ff ff a0 a4 29 08 81 88 ff ff ..).......)..... 00 00 b9 13 81 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006fed77ac>] __alloc_skb+0x6d/0x280 [<00000000a947cb25>] __napi_alloc_skb+0x67/0x170 [<0000000048aaa3a4>] napi_get_frags+0x3c/0x80 [<00000000ee36dbea>] tun_get_user+0xfda/0x1b40 [<00000000bace84f9>] tun_chr_write_iter+0x84/0xe0 [<00000000c7074db0>] new_sync_write+0x1d7/0x2b0 [<00000000a59193a4>] vfs_write+0x34c/0x400 [<00000000733507b2>] ksys_write+0x9d/0x160 [<0000000047fb2f16>] do_syscall_64+0x2d/0x70 [<0000000014fce8ca>] entry_SYSCALL_64_after_hwframe+0x44/0xa9