Warning: Permanently added '10.128.0.90' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.862666] ------------[ cut here ]------------ [ 48.867453] kernel BUG at net/core/skbuff.c:1459! [ 48.872360] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 48.877724] CPU: 0 PID: 7998 Comm: syz-executor691 Not tainted 4.20.0+ #299 [ 48.884799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.894141] RIP: 0010:pskb_expand_head+0xc24/0x10d0 [ 48.899135] Code: 8b 85 20 fe ff ff 48 85 c0 0f 84 44 fe ff ff e8 72 11 67 fb 4d 8d 74 24 ff e9 35 fe ff ff e8 63 11 67 fb 0f 0b e8 5c 11 67 fb <0f> 0b e8 55 11 67 fb 31 f6 31 ff e8 1c 12 67 fb e9 6a fd ff ff 4c [ 48.918015] RSP: 0018:ffff88809ac1f140 EFLAGS: 00010293 [ 48.923359] RAX: ffff88808dc64700 RBX: ffff88808fb96e40 RCX: ffffffff861ad06a [ 48.930608] RDX: 0000000000000000 RSI: ffffffff861adae4 RDI: 0000000000000005 [ 48.937857] RBP: ffff88809ac1f340 R08: ffff88808dc64700 R09: ffffed1011f72de2 [ 48.945126] R10: ffffed1011f72de2 R11: ffff88808fb96f17 R12: ffff88808fb96efc [ 48.952384] R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000000 [ 48.959652] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7ee3b40 [ 48.967865] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 48.973735] CR2: 0000000020000300 CR3: 00000000978c5000 CR4: 00000000001406f0 [ 48.980990] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.988241] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.995490] Call Trace: [ 48.998060] ? __switch_to_asm+0x40/0x70 [ 49.002101] ? __switch_to_asm+0x34/0x70 [ 49.006142] ? __switch_to_asm+0x40/0x70 [ 49.010191] ? __pskb_copy_fclone+0xe80/0xe80 [ 49.014671] ? __sched_text_start+0x8/0x8 [ 49.018803] ? graph_lock+0x270/0x270 [ 49.022586] ? graph_lock+0x270/0x270 [ 49.026364] ? graph_lock+0x270/0x270 [ 49.030147] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.035671] ? find_held_lock+0x36/0x1c0 [ 49.039717] __pskb_pull_tail+0x156/0x18a0 [ 49.043930] ? __might_fault+0x12b/0x1e0 [ 49.047973] ? skb_realloc_headroom+0x120/0x120 [ 49.052623] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 49.058056] ? __might_fault+0x1a3/0x1e0 [ 49.062100] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.067632] ? _copy_to_iter+0x3b8/0x1440 [ 49.071760] ? proto_seq_start+0x50/0x50 [ 49.075819] ip6_datagram_recv_specific_ctl+0x1953/0x1bf0 [ 49.081336] ? iov_iter_copy_from_user_atomic+0x1030/0x1030 [ 49.087029] ? ip6_datagram_recv_common_ctl+0x5c0/0x5c0 [ 49.092378] ? simple_copy_to_iter+0x35/0x40 [ 49.096772] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.102287] ? __skb_datagram_iter+0x1a7/0x7e0 [ 49.106851] ? rcu_pm_notify+0xc0/0xc0 [ 49.110719] ? skb_kill_datagram+0x120/0x120 [ 49.115111] ? skb_copy_datagram_iter+0x10d/0x4a0 [ 49.119936] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.125467] ? ip6_datagram_recv_common_ctl+0x35a/0x5c0 [ 49.130811] ? ipv6_recv_rxpmtu+0x920/0x920 [ 49.135113] ? arch_local_save_flags+0x40/0x40 [ 49.139694] ? __might_fault+0x12b/0x1e0 [ 49.143739] ip6_datagram_recv_ctl+0x33/0x40 [ 49.148128] rawv6_recvmsg+0xc4b/0xea0 [ 49.152009] ? rawv6_rcv_skb+0x480/0x480 [ 49.156064] ? iov_iter_get_pages+0x12a0/0x12a0 [ 49.160716] sock_common_recvmsg+0x13a/0x2a0 [ 49.165107] ? compat_sock_common_getsockopt+0x150/0x150 [ 49.170540] ? apparmor_socket_recvmsg+0x29/0x30 [ 49.175281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.180800] ? security_socket_recvmsg+0x9c/0xc0 [ 49.185537] ? compat_sock_common_getsockopt+0x150/0x150 [ 49.190966] sock_recvmsg+0xd0/0x110 [ 49.194663] ? __sock_recv_ts_and_drops+0x420/0x420 [ 49.199663] ___sys_recvmsg+0x2b6/0x680 [ 49.203627] ? ___sys_sendmsg+0x930/0x930 [ 49.207755] ? release_sock+0x1ec/0x2c0 [ 49.211709] ? __local_bh_enable_ip+0x160/0x260 [ 49.216361] ? __fget_light+0x2e9/0x430 [ 49.220312] ? fget_raw+0x20/0x20 [ 49.223746] ? __local_bh_enable_ip+0x160/0x260 [ 49.228398] ? ip6_datagram_connect+0x3a/0x50 [ 49.232877] ? ip6_datagram_connect_v6_only+0x71/0x90 [ 49.238046] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.243738] ? sockfd_lookup_light+0xc5/0x160 [ 49.248228] __sys_recvmsg+0x11a/0x280 [ 49.252100] ? __ia32_sys_sendmmsg+0x100/0x100 [ 49.256665] ? do_fast_syscall_32+0x150/0xfb2 [ 49.261142] ? do_fast_syscall_32+0x150/0xfb2 [ 49.265619] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 49.271051] __ia32_compat_sys_recvmsg+0x7a/0xb0 [ 49.275786] do_fast_syscall_32+0x34d/0xfb2 [ 49.280086] ? do_int80_syscall_32+0x890/0x890 [ 49.284649] ? entry_SYSENTER_compat+0x68/0x7f [ 49.289214] ? trace_hardirqs_off_caller+0xbb/0x310 [ 49.294215] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.299036] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.304033] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.309029] ? recalc_sigpending_tsk+0x180/0x180 [ 49.313769] ? __switch_to_asm+0x40/0x70 [ 49.317809] ? __switch_to_asm+0x34/0x70 [ 49.321859] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.326687] entry_SYSENTER_compat+0x70/0x7f [ 49.331093] RIP: 0023:0xf7f08849 [ 49.334444] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 49.353327] RSP: 002b:00000000f7ee31fc EFLAGS: 00000246 ORIG_RAX: 0000000000000174 [ 49.361013] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000140 [ 49.368271] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000 [ 49.375522] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 49.382771] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 49.390016] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.397267] Modules linked in: [ 49.400876] ---[ end trace dd5b63f51b615083 ]--- [ 49.405698] RIP: 0010:pskb_expand_head+0xc24/0x10d0 [ 49.410711] Code: 8b 85 20 fe ff ff 48 85 c0 0f 84 44 fe ff ff e8 72 11 67 fb 4d 8d 74 24 ff e9 35 fe ff ff e8 63 11 67 fb 0f 0b e8 5c 11 67 fb <0f> 0b e8 55 11 67 fb 31 f6 31 ff e8 1c 12 67 fb e9 6a fd ff ff 4c [ 49.430002] RSP: 0018:ffff88809ac1f140 EFLAGS: 00010293 [ 49.435401] RAX: ffff88808dc64700 RBX: ffff88808fb96e40 RCX: ffffffff861ad06a [ 49.442743] RDX: 0000000000000000 RSI: ffffffff861adae4 RDI: 0000000000000005 [ 49.450014] RBP: ffff88809ac1f340 R08: ffff88808dc64700 R09: ffffed1011f72de2 [ 49.457353] R10: ffffed1011f72de2 R11: ffff88808fb96f17 R12: ffff88808fb96efc [ 49.464655] R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000000 [ 49.471925] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7ee3b40 [ 49.480181] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 49.486085] CR2: ffffffffff600400 CR3: 00000000978c5000 CR4: 00000000001406f0 [ 49.493375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.500658] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.507948] Kernel panic - not syncing: Fatal exception [ 49.514247] Kernel Offset: disabled [ 49.517869] Rebooting in 86400 seconds..