[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 64.525662][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.545138][ T8531] general protection fault, probably for non-canonical address 0xfbd59c0000000020: 0000 [#1] PREEMPT SMP KASAN [ 64.556873][ T8531] KASAN: maybe wild-memory-access in range [0xdead000000000100-0xdead000000000107] [ 64.566242][ T8531] CPU: 1 PID: 8531 Comm: syz-executor169 Not tainted 5.10.0-rc4-syzkaller #0 [ 64.574994][ T8531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.586018][ T8531] RIP: 0010:ieee80211_chanctx_num_assigned+0xb1/0x140 [ 64.592777][ T8531] Code: a8 f6 ff ff 48 39 c5 74 3b 49 bd 00 00 00 00 00 fc ff df e8 c1 91 1b f9 48 8d bb 58 09 00 00 41 83 c4 01 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 68 48 8b 83 58 09 00 00 48 8d 98 a8 f6 ff ff 48 [ 64.612386][ T8531] RSP: 0018:ffffc9000169f330 EFLAGS: 00010a02 [ 64.618465][ T8531] RAX: 1bd5a00000000020 RBX: deacfffffffff7a8 RCX: ffffffff88549e6b [ 64.626440][ T8531] RDX: ffff888011c8b480 RSI: ffffffff88549e0f RDI: dead000000000100 [ 64.634416][ T8531] RBP: ffff8880130ca720 R08: 0000000000000000 R09: ffffffff8cecb9cf [ 64.642379][ T8531] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 64.650332][ T8531] R13: dffffc0000000000 R14: ffff8880130ca700 R15: 0000000000000000 [ 64.658320][ T8531] FS: 000000000087d940(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 64.667327][ T8531] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.673897][ T8531] CR2: 00000000006d3090 CR3: 000000001c20a000 CR4: 00000000001506e0 [ 64.681860][ T8531] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.689819][ T8531] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.697806][ T8531] Call Trace: [ 64.701090][ T8531] ieee80211_assign_vif_chanctx+0x7b8/0x1230 [ 64.707052][ T8531] __ieee80211_vif_release_channel+0x236/0x430 [ 64.713192][ T8531] ieee80211_vif_release_channel+0x117/0x220 [ 64.719152][ T8531] ieee80211_ibss_disconnect+0x44e/0x7b0 [ 64.724779][ T8531] ieee80211_ibss_leave+0x12/0xe0 [ 64.729784][ T8531] __cfg80211_leave_ibss+0x19a/0x4c0 [ 64.735047][ T8531] cfg80211_leave_ibss+0x57/0x80 [ 64.739976][ T8531] cfg80211_change_iface+0x855/0xef0 [ 64.745260][ T8531] nl80211_set_interface+0x65c/0x8d0 [ 64.750524][ T8531] ? nl80211_notify_iface+0x180/0x180 [ 64.755875][ T8531] ? nl80211_pre_doit+0xa2/0x630 [ 64.760807][ T8531] genl_family_rcv_msg_doit+0x228/0x320 [ 64.766332][ T8531] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x280/0x280 [ 64.773677][ T8531] ? ns_capable+0xde/0x100 [ 64.778073][ T8531] genl_rcv_msg+0x328/0x580 [ 64.782552][ T8531] ? genl_get_cmd+0x480/0x480 [ 64.787206][ T8531] ? nl80211_notify_iface+0x180/0x180 [ 64.792554][ T8531] ? lock_release+0x710/0x710 [ 64.797224][ T8531] netlink_rcv_skb+0x153/0x420 [ 64.801972][ T8531] ? genl_get_cmd+0x480/0x480 [ 64.806631][ T8531] ? netlink_ack+0xaa0/0xaa0 [ 64.811197][ T8531] genl_rcv+0x24/0x40 [ 64.815163][ T8531] netlink_unicast+0x533/0x7d0 [ 64.819928][ T8531] ? netlink_attachskb+0x810/0x810 [ 64.825024][ T8531] ? __phys_addr_symbol+0x2c/0x70 [ 64.830042][ T8531] ? __check_object_size+0x171/0x3f0 [ 64.835323][ T8531] netlink_sendmsg+0x856/0xd90 [ 64.840089][ T8531] ? netlink_unicast+0x7d0/0x7d0 [ 64.845008][ T8531] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 64.850284][ T8531] ? netlink_unicast+0x7d0/0x7d0 [ 64.855200][ T8531] sock_sendmsg+0xcf/0x120 [ 64.859598][ T8531] ____sys_sendmsg+0x6e8/0x810 [ 64.864340][ T8531] ? kernel_sendmsg+0x50/0x50 [ 64.869003][ T8531] ? do_recvmmsg+0x6c0/0x6c0 [ 64.873599][ T8531] ? find_held_lock+0x2d/0x110 [ 64.878340][ T8531] ___sys_sendmsg+0xf3/0x170 [ 64.882925][ T8531] ? sendmsg_copy_msghdr+0x160/0x160 [ 64.888192][ T8531] ? _copy_to_user+0xdc/0x150 [ 64.892854][ T8531] ? sock_do_ioctl+0x168/0x2d0 [ 64.897599][ T8531] ? compat_ifr_data_ioctl+0x150/0x150 [ 64.903037][ T8531] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 64.908945][ T8531] ? __fget_light+0x215/0x280 [ 64.913630][ T8531] __sys_sendmsg+0xe5/0x1b0 [ 64.918116][ T8531] ? __sys_sendmsg_sock+0xb0/0xb0 [ 64.923125][ T8531] ? syscall_enter_from_user_mode+0x1d/0x50 [ 64.929009][ T8531] do_syscall_64+0x2d/0x70 [ 64.933666][ T8531] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.939534][ T8531] RIP: 0033:0x4429b9 [ 64.943407][ T8531] Code: e8 bc fd 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.963395][ T8531] RSP: 002b:00007ffd820d0a58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 64.971832][ T8531] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004429b9 [ 64.979789][ T8531] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004 [ 64.987741][ T8531] RBP: 000000000000fbef R08: 00000000004035b0 R09: 00000000004035b0 [ 64.995690][ T8531] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403520 [ 65.003653][ T8531] R13: 00000000004035b0 R14: 0000000000000000 R15: 0000000000000000 [ 65.011603][ T8531] Modules linked in: [ 65.058589][ T8531] ---[ end trace 4cedfcb59a8efe47 ]--- [ 65.064127][ T8531] RIP: 0010:ieee80211_chanctx_num_assigned+0xb1/0x140 [ 65.071472][ T8531] Code: a8 f6 ff ff 48 39 c5 74 3b 49 bd 00 00 00 00 00 fc ff df e8 c1 91 1b f9 48 8d bb 58 09 00 00 41 83 c4 01 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 68 48 8b 83 58 09 00 00 48 8d 98 a8 f6 ff ff 48 [ 65.091465][ T8531] RSP: 0018:ffffc9000169f330 EFLAGS: 00010a02 [ 65.097865][ T8531] RAX: 1bd5a00000000020 RBX: deacfffffffff7a8 RCX: ffffffff88549e6b [ 65.105965][ T8531] RDX: ffff888011c8b480 RSI: ffffffff88549e0f RDI: dead000000000100 [ 65.113972][ T8531] RBP: ffff8880130ca720 R08: 0000000000000000 R09: ffffffff8cecb9cf [ 65.122594][ T8531] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 65.130935][ T8531] R13: dffffc0000000000 R14: ffff8880130ca700 R15: 0000000000000000 [ 65.139280][ T8531] FS: 000000000087d940(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 65.148710][ T8531] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.155688][ T8531] CR2: 00007efedefa7000 CR3: 000000001c20a000 CR4: 00000000001506f0 [ 65.163669][ T8531] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.172196][ T8531] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.180551][ T8531] Kernel panic - not syncing: Fatal exception [ 65.187176][ T8531] Kernel Offset: disabled [ 65.191496][ T8531] Rebooting in 86400 seconds..