[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 60.663247][ T26] audit: type=1800 audit(1583188541.209:25): pid=8843 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 60.704787][ T26] audit: type=1800 audit(1583188541.219:26): pid=8843 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 60.733813][ T26] audit: type=1800 audit(1583188541.219:27): pid=8843 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 '10.128.0.117' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 71.888897][ T8998] IPVS: ftp: loaded support on port[0] = 21 [ 71.950161][ T9006] BUG: unable to handle page fault for address: ffffed10181a3007 [ 71.958061][ T9006] #PF: supervisor read access in kernel mode [ 71.964105][ T9006] #PF: error_code(0x0000) - not-present page [ 71.970781][ T9006] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 71.977536][ T9006] Oops: 0000 [#1] PREEMPT SMP KASAN [ 71.982725][ T9006] CPU: 1 PID: 9006 Comm: syz-executor561 Not tainted 5.6.0-rc3-syzkaller #0 [ 71.991382][ T9006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.001579][ T9006] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 72.007809][ T9006] Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3 [ 72.028465][ T9006] RSP: 0018:ffffc90001d476c0 EFLAGS: 00010a03 [ 72.034656][ T9006] RAX: 1ffff110181a3007 RBX: ffff8880c0d1803c RCX: 0000000000000000 [ 72.042973][ T9006] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 72.051049][ T9006] RBP: ffffc90001d477b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337 [ 72.059102][ T9006] R10: ffff888090e98480 R11: 0000000000000004 R12: dffffc0000000000 [ 72.067067][ T9006] R13: ffffc90001d47ab0 R14: ffff8880a0d18040 R15: 0000000000000010 [ 72.075066][ T9006] FS: 000000000140a880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 72.083988][ T9006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.090783][ T9006] CR2: ffffed10181a3007 CR3: 00000000a8734000 CR4: 00000000001406e0 [ 72.098748][ T9006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.106758][ T9006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.114890][ T9006] Call Trace: [ 72.118203][ T9006] ? memcpy+0x49/0x60 [ 72.122273][ T9006] ethnl_update_bitset+0x3c/0x50 [ 72.127218][ T9006] ethnl_set_linkmodes+0x5d4/0xf80 [ 72.132327][ T9006] genl_rcv_msg+0xf15/0x13e0 [ 72.136965][ T9006] netlink_rcv_skb+0x19e/0x3e0 [ 72.141717][ T9006] ? genl_unbind+0x250/0x250 [ 72.146547][ T9006] genl_rcv+0x28/0x40 [ 72.150711][ T9006] netlink_unicast+0x766/0x920 [ 72.155495][ T9006] netlink_sendmsg+0xa2b/0xd40 [ 72.160266][ T9006] ? netlink_getsockopt+0x9f0/0x9f0 [ 72.165466][ T9006] ____sys_sendmsg+0x4f7/0x7f0 [ 72.170302][ T9006] __sys_sendmsg+0x1ed/0x290 [ 72.174914][ T9006] ? check_preemption_disabled+0xb4/0x260 [ 72.180721][ T9006] ? debug_smp_processor_id+0x9/0x20 [ 72.185999][ T9006] ? __kasan_check_write+0x14/0x20 [ 72.191231][ T9006] ? __fpregs_load_activate+0x194/0x220 [ 72.196766][ T9006] ? switch_fpu_return+0xe/0x10 [ 72.201615][ T9006] ? prepare_exit_to_usermode+0x221/0x5b0 [ 72.207340][ T9006] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 72.212795][ T9006] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 72.218658][ T9006] ? do_syscall_64+0x1d/0x1c0 [ 72.223335][ T9006] __x64_sys_sendmsg+0x7f/0x90 [ 72.228083][ T9006] do_syscall_64+0xf7/0x1c0 [ 72.232699][ T9006] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.238609][ T9006] RIP: 0033:0x445b39 [ 72.242495][ T9006] Code: e8 ac cb 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 ab cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 72.262289][ T9006] RSP: 002b:00007ffdea0d1f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 72.270803][ T9006] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 72.278798][ T9006] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 72.286762][ T9006] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 72.294834][ T9006] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000118f0 [ 72.302801][ T9006] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 72.310875][ T9006] Modules linked in: [ 72.314762][ T9006] CR2: ffffed10181a3007 [ 72.318964][ T9006] ---[ end trace ed708054b84a5335 ]--- [ 72.324752][ T9006] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 72.330977][ T9006] Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3 [ 72.350691][ T9006] RSP: 0018:ffffc90001d476c0 EFLAGS: 00010a03 [ 72.356743][ T9006] RAX: 1ffff110181a3007 RBX: ffff8880c0d1803c RCX: 0000000000000000 [ 72.364759][ T9006] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 72.372776][ T9006] RBP: ffffc90001d477b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337 [ 72.380754][ T9006] R10: ffff888090e98480 R11: 0000000000000004 R12: dffffc0000000000 [ 72.388719][ T9006] R13: ffffc90001d47ab0 R14: ffff8880a0d18040 R15: 0000000000000010 [ 72.396744][ T9006] FS: 000000000140a880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 72.405875][ T9006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.412441][ T9006] CR2: ffffed10181a3007 CR3: 00000000a8734000 CR4: 00000000001406e0 [ 72.420438][ T9006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.428519][ T9006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.436595][ T9006] Kernel panic - not syncing: Fatal exception [ 72.444385][ T9006] Kernel Offset: disabled [ 72.448721][ T9006] Rebooting in 86400 seconds..