[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 50.163909][ T27] audit: type=1800 audit(1583180723.424:25): pid=8636 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 50.182803][ T27] audit: type=1800 audit(1583180723.424:26): pid=8636 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 50.288983][ T27] audit: type=1800 audit(1583180723.544:27): pid=8636 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 60.699732][ T8787] IPVS: ftp: loaded support on port[0] = 21 [ 60.758978][ T8793] BUG: unable to handle page fault for address: ffffed10189e1a07 [ 60.766984][ T8793] #PF: supervisor read access in kernel mode [ 60.772983][ T8793] #PF: error_code(0x0000) - not-present page [ 60.778952][ T8793] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 60.785495][ T8793] Oops: 0000 [#1] PREEMPT SMP KASAN [ 60.790703][ T8793] CPU: 1 PID: 8793 Comm: syz-executor237 Not tainted 5.6.0-rc3-syzkaller #0 [ 60.799416][ T8793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.809693][ T8793] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 60.815976][ T8793] 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 [ 60.835599][ T8793] RSP: 0018:ffffc90001fe76c0 EFLAGS: 00010a02 [ 60.841657][ T8793] RAX: 1ffff110189e1a07 RBX: ffff8880c4f0d038 RCX: 0000000000000000 [ 60.849617][ T8793] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 60.857631][ T8793] RBP: ffffc90001fe77b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337 [ 60.865597][ T8793] R10: ffff888095cda140 R11: 0000000000000004 R12: dffffc0000000000 [ 60.873612][ T8793] R13: ffffc90001fe7ab0 R14: ffff8880a4f0d03c R15: 0000000000000010 [ 60.883676][ T8793] FS: 0000000000c5d880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 60.892717][ T8793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.899317][ T8793] CR2: ffffed10189e1a07 CR3: 000000008fcae000 CR4: 00000000001406e0 [ 60.907292][ T8793] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.915353][ T8793] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.923313][ T8793] Call Trace: [ 60.926602][ T8793] ? memcpy+0x49/0x60 [ 60.930583][ T8793] ethnl_update_bitset+0x3c/0x50 [ 60.935530][ T8793] ethnl_set_linkmodes+0x5d4/0xf80 [ 60.940660][ T8793] genl_rcv_msg+0xf15/0x13e0 [ 60.945280][ T8793] netlink_rcv_skb+0x19e/0x3e0 [ 60.950047][ T8793] ? genl_unbind+0x250/0x250 [ 60.954627][ T8793] genl_rcv+0x28/0x40 [ 60.958694][ T8793] netlink_unicast+0x766/0x920 [ 60.963511][ T8793] netlink_sendmsg+0xa2b/0xd40 [ 60.968261][ T8793] ? netlink_getsockopt+0x9f0/0x9f0 [ 60.973466][ T8793] ____sys_sendmsg+0x4f7/0x7f0 [ 60.978237][ T8793] __sys_sendmsg+0x1ed/0x290 [ 60.982829][ T8793] ? check_preemption_disabled+0xb4/0x260 [ 60.988703][ T8793] ? debug_smp_processor_id+0x9/0x20 [ 60.993985][ T8793] ? __kasan_check_write+0x14/0x20 [ 60.999083][ T8793] ? __fpregs_load_activate+0x194/0x220 [ 61.004626][ T8793] ? switch_fpu_return+0xe/0x10 [ 61.009458][ T8793] ? prepare_exit_to_usermode+0x221/0x5b0 [ 61.015235][ T8793] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 61.020686][ T8793] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 61.026409][ T8793] ? do_syscall_64+0x1d/0x1c0 [ 61.031086][ T8793] __x64_sys_sendmsg+0x7f/0x90 [ 61.035862][ T8793] do_syscall_64+0xf7/0x1c0 [ 61.040362][ T8793] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 61.046247][ T8793] RIP: 0033:0x445b39 [ 61.050129][ T8793] 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 [ 61.071199][ T8793] RSP: 002b:00007fff3d602f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.079602][ T8793] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 61.087640][ T8793] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 61.095641][ T8793] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 61.103707][ T8793] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000ed42 [ 61.111780][ T8793] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.120819][ T8793] Modules linked in: [ 61.124801][ T8793] CR2: ffffed10189e1a07 [ 61.129081][ T8793] ---[ end trace 72e2432131d7f3a3 ]--- [ 61.135029][ T8793] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 61.141258][ T8793] 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 [ 61.161239][ T8793] RSP: 0018:ffffc90001fe76c0 EFLAGS: 00010a02 [ 61.168061][ T8793] RAX: 1ffff110189e1a07 RBX: ffff8880c4f0d038 RCX: 0000000000000000 [ 61.176028][ T8793] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 61.184898][ T8793] RBP: ffffc90001fe77b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337 [ 61.193576][ T8793] R10: ffff888095cda140 R11: 0000000000000004 R12: dffffc0000000000 [ 61.201550][ T8793] R13: ffffc90001fe7ab0 R14: ffff8880a4f0d03c R15: 0000000000000010 [ 61.209541][ T8793] FS: 0000000000c5d880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 61.218943][ T8793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.226091][ T8793] CR2: ffffed10189e1a07 CR3: 000000008fcae000 CR4: 00000000001406e0 [ 61.234102][ T8793] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.242909][ T8793] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.251395][ T8793] Kernel panic - not syncing: Fatal exception [ 61.259242][ T8793] Kernel Offset: disabled [ 61.263613][ T8793] Rebooting in 86400 seconds..