[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.379623][ T27] audit: type=1800 audit(1582872602.317:25): pid=8604 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.417502][ T27] audit: type=1800 audit(1582872602.317:26): pid=8604 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.437172][ T27] audit: type=1800 audit(1582872602.317:27): pid=8604 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. syzkaller login: [ 61.716462][ T8764] IPVS: ftp: loaded support on port[0] = 21 [ 61.731821][ T8765] IPVS: ftp: loaded support on port[0] = 21 [ 61.741130][ T8760] IPVS: ftp: loaded support on port[0] = 21 [ 61.741149][ T8767] IPVS: ftp: loaded support on port[0] = 21 [ 61.749753][ T8766] IPVS: ftp: loaded support on port[0] = 21 [ 61.762129][ T8768] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program [ 61.856452][ T8770] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 61.870050][ T8773] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 61.878445][ T8775] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 61.886636][ T8776] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 61.921920][ T8778] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 61.930613][ T8780] netlink: 'syz-executor808': attribute type 1 has an invalid length. executing program executing program executing program executing program executing program executing program [ 62.133821][ T8788] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 62.167989][ T8794] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 62.176653][ T8795] netlink: 'syz-executor808': attribute type 1 has an invalid length. [ 62.186020][ T8797] netlink: 'syz-executor808': attribute type 1 has an invalid length. executing program executing program executing program executing program executing program executing program executing program [ 62.562519][ T8824] bond0: (slave vcan0): The slave device specified does not support setting the MAC address [ 62.573066][ T8824] bond0: (slave vcan0): Error -22 calling dev_set_mtu executing program executing program [ 62.651108][ T8828] bond0: (slave vcan0): The slave device specified does not support setting the MAC address [ 62.664819][ T8828] bond0: (slave vcan0): Error -22 calling dev_set_mtu [ 62.685510][ T8831] bond0: (slave vcan0): The slave device specified does not support setting the MAC address executing program executing program executing program [ 62.695854][ T8831] bond0: (slave vcan0): Error -22 calling dev_set_mtu [ 62.744427][ T8838] bond0: (slave vcan0): The slave device specified does not support setting the MAC address [ 62.754735][ T8838] bond0: (slave vcan0): Error -22 calling dev_set_mtu [ 62.764498][ T8837] bond0: (slave vcan0): The slave device specified does not support setting the MAC address [ 62.775221][ T8837] bond0: (slave vcan0): Error -22 calling dev_set_mtu [ 62.782461][ T8845] general protection fault, probably for non-canonical address 0xdffffc0000000c05: 0000 [#1] PREEMPT SMP KASAN [ 62.794174][ T8845] KASAN: probably user-memory-access in range [0x0000000000006028-0x000000000000602f] [ 62.803685][ T8845] CPU: 1 PID: 8845 Comm: syz-executor808 Not tainted 5.6.0-rc3-syzkaller #0 [ 62.812325][ T8845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.822364][ T8845] RIP: 0010:j1939_netdev_start+0x616/0x920 [ 62.828231][ T8845] Code: 4d 89 e6 49 c1 ee 03 43 80 3c 2e 00 74 08 4c 89 e7 e8 0e b2 6d fa bb 28 60 00 00 4c 89 65 c8 49 03 1c 24 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 8b b2 6d fa 4c 89 3b 48 c7 c7 c8 [ 62.847929][ T8845] RSP: 0018:ffffc9000245fd20 EFLAGS: 00010206 [ 62.853965][ T8845] RAX: 0000000000000c05 RBX: 0000000000006028 RCX: ffff888090a7c0c0 [ 62.861911][ T8845] RDX: 0000000000000000 RSI: 0000000000000118 RDI: 0000000000000118 [ 62.869856][ T8845] RBP: ffffc9000245fd90 R08: ffffffff87467f68 R09: fffff5200048bf99 [ 62.877801][ T8845] R10: fffff5200048bf99 R11: 0000000000000000 R12: ffff8880984a8590 [ 62.885744][ T8845] R13: dffffc0000000000 R14: 1ffff110130950b2 R15: ffff888097ba4000 [ 62.893687][ T8845] FS: 00007fbe1a7c7700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 62.902588][ T8845] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.909146][ T8845] CR2: 00007fbe1a7c6e78 CR3: 00000000a6f35000 CR4: 00000000001406e0 [ 62.917101][ T8845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.925045][ T8845] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.932993][ T8845] Call Trace: [ 62.936267][ T8845] j1939_sk_bind+0x2ae/0xa90 [ 62.940837][ T8845] __sys_bind+0x2bd/0x3a0 [ 62.945143][ T8845] ? prepare_exit_to_usermode+0x221/0x5b0 [ 62.950836][ T8845] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 62.956524][ T8845] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 62.962074][ T8845] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 62.967765][ T8845] __x64_sys_bind+0x7a/0x90 [ 62.972241][ T8845] do_syscall_64+0xf7/0x1c0 [ 62.976719][ T8845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.982585][ T8845] RIP: 0033:0x446d39 [ 62.986464][ T8845] Code: e8 8c e7 ff ff 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 fb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.006058][ T8845] RSP: 002b:00007fbe1a7c6d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 63.014448][ T8845] RAX: ffffffffffffffda RBX: 00000000006dbc78 RCX: 0000000000446d39 [ 63.022410][ T8845] RDX: 0000000000000018 RSI: 0000000020000040 RDI: 0000000000000003 [ 63.030359][ T8845] RBP: 00000000006dbc70 R08: 00007fbe1a7c7700 R09: 0000000000000000 [ 63.038340][ T8845] R10: 00007fbe1a7c7700 R11: 0000000000000246 R12: 00000000006dbc7c [ 63.046293][ T8845] R13: 000000006f340000 R14: 0000000000000000 R15: 068500100000003c [ 63.054287][ T8845] Modules linked in: [ 63.058335][ T8845] ---[ end trace c1e0b6041f2bf14a ]--- [ 63.063800][ T8845] RIP: 0010:j1939_netdev_start+0x616/0x920 [ 63.069662][ T8845] Code: 4d 89 e6 49 c1 ee 03 43 80 3c 2e 00 74 08 4c 89 e7 e8 0e b2 6d fa bb 28 60 00 00 4c 89 65 c8 49 03 1c 24 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 8b b2 6d fa 4c 89 3b 48 c7 c7 c8 [ 63.089282][ T8845] RSP: 0018:ffffc9000245fd20 EFLAGS: 00010206 [ 63.095324][ T8845] RAX: 0000000000000c05 RBX: 0000000000006028 RCX: ffff888090a7c0c0 [ 63.103301][ T8845] RDX: 0000000000000000 RSI: 0000000000000118 RDI: 0000000000000118 [ 63.111279][ T8845] RBP: ffffc9000245fd90 R08: ffffffff87467f68 R09: fffff5200048bf99 [ 63.119255][ T8845] R10: fffff5200048bf99 R11: 0000000000000000 R12: ffff8880984a8590 [ 63.127211][ T8845] R13: dffffc0000000000 R14: 1ffff110130950b2 R15: ffff888097ba4000 [ 63.135201][ T8845] FS: 00007fbe1a7c7700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 63.144138][ T8845] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.150733][ T8845] CR2: 00007fbe1a7c6e78 CR3: 00000000a6f35000 CR4: 00000000001406e0 [ 63.158734][ T8845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.166704][ T8845] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.174697][ T8845] Kernel panic - not syncing: Fatal exception [ 63.181983][ T8845] Kernel Offset: disabled [ 63.186297][ T8845] Rebooting in 86400 seconds..