Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.582104][ T8446] syz-executor280 uses obsolete (PF_INET,SOCK_PACKET) [ 73.508706][ T8445] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888110455700 (size 232): comm "syz-executor280", pid 8446, jiffies 4294944033 (age 7.940s) hex dump (first 32 bytes): a0 34 a0 01 81 88 ff ff a0 34 a0 01 81 88 ff ff .4.......4...... 00 40 12 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .@.............. backtrace: [<000000000c682b7f>] __alloc_skb+0x6d/0x280 [<000000003b05b743>] __napi_alloc_skb+0x67/0x170 [<0000000088aceb8f>] napi_get_frags+0x3c/0x80 [<0000000053293284>] tun_get_user+0xfda/0x1b40 [<000000005de11a42>] tun_chr_write_iter+0x84/0xe0 [<00000000d30e112b>] new_sync_write+0x1d7/0x2b0 [<000000004e3d7051>] vfs_write+0x34c/0x400 [<000000005d641e57>] ksys_write+0x9d/0x160 [<000000001a7aef95>] do_syscall_64+0x2d/0x70 [<000000003aeed1fa>] entry_SYSCALL_64_after_hwframe+0x44/0xa9