Starting Permit User Sessions... Starting OpenBSD Secure Shell server... Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Found device /dev/ttyS0. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ 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... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. syzkaller login: [ 77.729310][ T34] audit: type=1400 audit(1607360236.296:8): avc: denied { execmem } for pid=8482 comm="syz-executor243" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 77.752240][ T8483] IPVS: ftp: loaded support on port[0] = 21 [ 77.838978][ T232] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.847008][ T232] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program executing program executing program executing program [ 77.891301][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.909500][ T44] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.917473][ T44] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.929717][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 78.088737][ T8566] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 78.100467][ T8566] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 78.108863][ T8566] CPU: 1 PID: 8566 Comm: syz-executor243 Not tainted 5.10.0-rc7-syzkaller #0 [ 78.117619][ T8566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.127702][ T8566] RIP: 0010:call_commit_handler+0x8b/0x110 [ 78.133509][ T8566] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7d 48 8b 9d e0 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 73 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 89 da [ 78.153112][ T8566] RSP: 0018:ffffc90001777ca8 EFLAGS: 00010246 [ 78.159169][ T8566] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8842eb78 [ 78.167128][ T8566] RDX: 0000000000000000 RSI: ffffffff8842eb85 RDI: ffff8880320e81e0 [ 78.175264][ T8566] RBP: ffff8880320e8000 R08: 0000000000000000 R09: ffff8880320e8047 [ 78.183226][ T8566] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880320e8040 [ 78.191184][ T8566] R13: ffffc90001777db0 R14: ffff8880320e8000 R15: 0000000000000004 [ 78.199149][ T8566] FS: 00007faf701dd700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 78.208086][ T8566] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.214687][ T8566] CR2: 00007faf701bbe78 CR3: 00000000124f5000 CR4: 00000000001506e0 [ 78.223168][ T8566] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.231137][ T8566] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.239102][ T8566] Call Trace: [ 78.242404][ T8566] ioctl_standard_call+0x1b8/0x1f0 [ 78.247511][ T8566] ? cfg80211_wext_freq+0x1b0/0x1b0 [ 78.252713][ T8566] ? iw_handler_get_private+0x1a0/0x1a0 [ 78.258245][ T8566] ? cfg80211_wext_freq+0x1b0/0x1b0 [ 78.263432][ T8566] wireless_process_ioctl+0xc8/0x4c0 [ 78.268721][ T8566] ? call_commit_handler+0x110/0x110 [ 78.274047][ T8566] wext_handle_ioctl+0x26b/0x280 [ 78.278990][ T8566] ? compat_standard_call+0x340/0x340 [ 78.284350][ T8566] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 78.290269][ T8566] ? generic_block_fiemap+0x60/0x60 [ 78.295550][ T8566] ? selinux_inode_getsecctx+0x90/0x90 [ 78.300988][ T8566] sock_ioctl+0x439/0x730 [ 78.305299][ T8566] ? dlci_ioctl_set+0x30/0x30 [ 78.309954][ T8566] ? __fget_files+0x294/0x400 [ 78.314638][ T8566] ? bpf_lsm_file_ioctl+0x5/0x10 [ 78.319563][ T8566] ? dlci_ioctl_set+0x30/0x30 [ 78.324222][ T8566] __x64_sys_ioctl+0x193/0x200 [ 78.328969][ T8566] do_syscall_64+0x2d/0x70 [ 78.333366][ T8566] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 78.339258][ T8566] RIP: 0033:0x447489 [ 78.343148][ T8566] Code: e8 3c 08 03 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 cb 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 78.362734][ T8566] RSP: 002b:00007faf701dcd88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 78.371126][ T8566] RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 0000000000447489 [ 78.379102][ T8566] RDX: 00000000200002c0 RSI: 0000000000008b04 RDI: 0000000000000007 [ 78.387077][ T8566] RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000 [ 78.395119][ T8566] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c [ 78.403071][ T8566] R13: 00007ffe76ac14df R14: 00007faf701dd9c0 R15: 0000000000000001 [ 78.411033][ T8566] Modules linked in: [ 78.415551][ T8566] ---[ end trace 456ce84827edc12a ]--- [ 78.421056][ T8566] RIP: 0010:call_commit_handler+0x8b/0x110 [ 78.426890][ T8566] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7d 48 8b 9d e0 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 73 48 b8 00 00 00 00 00 fc ff df 48 8b 1b 48 89 da [ 78.447017][ T8566] RSP: 0018:ffffc90001777ca8 EFLAGS: 00010246 [ 78.454109][ T8566] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8842eb78 [ 78.462486][ T8566] RDX: 0000000000000000 RSI: ffffffff8842eb85 RDI: ffff8880320e81e0 [ 78.470906][ T8566] RBP: ffff8880320e8000 R08: 0000000000000000 R09: ffff8880320e8047 [ 78.479573][ T8566] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880320e8040 [ 78.488122][ T8566] R13: ffffc90001777db0 R14: ffff8880320e8000 R15: 0000000000000004 [ 78.496099][ T8566] FS: 00007faf701dd700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 78.505774][ T8566] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.512887][ T8566] CR2: 00007f55d9dad000 CR3: 00000000124f5000 CR4: 00000000001506f0 [ 78.521350][ T8566] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.529934][ T8566] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.538751][ T8566] Kernel panic - not syncing: Fatal exception [ 78.545337][ T8566] Kernel Offset: disabled [ 78.549669][ T8566] Rebooting in 86400 seconds..