Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.120497][ T3035] ------------[ cut here ]------------ [ 27.121796][ T3035] WARNING: CPU: 1 PID: 3035 at net/core/flow_dissector.c:992 __skb_flow_dissect+0x644/0x2708 [ 27.124270][ T3035] Modules linked in: [ 27.125219][ T3035] CPU: 1 PID: 3035 Comm: syz-executor356 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 [ 27.127776][ T3035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 [ 27.130309][ T3035] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 27.132353][ T3035] pc : __skb_flow_dissect+0x644/0x2708 [ 27.133692][ T3035] lr : __skb_flow_dissect+0x644/0x2708 [ 27.134995][ T3035] sp : ffff80001282b960 [ 27.136061][ T3035] x29: ffff80001282ba30 x28: 0000000000000008 x27: 0000000000000000 [ 27.138065][ T3035] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 [ 27.140054][ T3035] x23: 0000000000000000 x22: ffff0000c9677800 x21: ffff0000c0c03c00 [ 27.142017][ T3035] x20: ffff80000d310640 x19: 0000000000000000 x18: 00000000000000c0 [ 27.144013][ T3035] x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c3dacf80 [ 27.146043][ T3035] x14: 00000000000000b8 x13: 00000000ffffffff x12: 0000000000000000 [ 27.148038][ T3035] x11: ff8080000b1eb6f0 x10: 0000000000000000 x9 : ffff80000b1eb6f0 [ 27.150022][ T3035] x8 : ffff0000c3dacf80 x7 : 0000000000000000 x6 : 0000000000000000 [ 27.151992][ T3035] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80001282ba98 [ 27.153985][ T3035] x2 : ffff80000d310640 x1 : 0000000000000000 x0 : 0000000000000000 [ 27.155955][ T3035] Call trace: [ 27.156772][ T3035] __skb_flow_dissect+0x644/0x2708 [ 27.158014][ T3035] skb_get_poff+0x5c/0xb4 [ 27.159068][ T3035] bpf_skb_get_pay_offset+0x20/0x34 [ 27.160397][ T3035] 0xffff80000f665cf0 [ 27.161352][ T3035] ppp_send_frame+0xe8/0x7d4 [ 27.162506][ T3035] __ppp_xmit_process+0xa8/0x154 [ 27.163708][ T3035] ppp_xmit_process+0x74/0xec [ 27.164983][ T3035] ppp_write+0x1fc/0x240 [ 27.166002][ T3035] do_iter_write+0x1f0/0x560 [ 27.167108][ T3035] do_pwritev+0x130/0x1e8 [ 27.168179][ T3035] __arm64_sys_pwritev+0x28/0x38 [ 27.169376][ T3035] el0_svc_common+0x138/0x220 [ 27.170545][ T3035] do_el0_svc+0x48/0x164 [ 27.171588][ T3035] el0_svc+0x58/0x150 [ 27.172584][ T3035] el0t_64_sync_handler+0x84/0xf0 [ 27.173850][ T3035] el0t_64_sync+0x18c/0x190 [ 27.174980][ T3035] irq event stamp: 11805 [ 27.176056][ T3035] hardirqs last enabled at (11804): [] _raw_spin_unlock_irqrestore+0x48/0x8c [ 27.178732][ T3035] hardirqs last disabled at (11805): [] el1_dbg+0x24/0x5c [ 27.180912][ T3035] softirqs last enabled at (11794): [] ppp_ioctl+0x10d0/0x1130 [ 27.183215][ T3035] softirqs last disabled at (11800): [] local_bh_disable+0x10/0x34 [ 27.185668][ T3035] ---[ end trace 0000000000000000 ]---