[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.377519][ T28] audit: type=1800 audit(1582595180.642:25): pid=9372 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.399198][ T28] audit: type=1800 audit(1582595180.642:26): pid=9372 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.457337][ T28] audit: type=1800 audit(1582595180.642:27): pid=9372 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 '10.128.0.80' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 73.740667][ T9525] IPVS: ftp: loaded support on port[0] = 21 [ 73.780467][ T9526] BUG: unable to handle page fault for address: ffffed101803ba87 [ 73.790987][ T9526] #PF: supervisor read access in kernel mode [ 73.798045][ T9526] #PF: error_code(0x0000) - not-present page [ 73.805520][ T9526] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 73.812742][ T9526] Oops: 0000 [#1] PREEMPT SMP KASAN [ 73.818382][ T9526] CPU: 1 PID: 9526 Comm: syz-executor657 Not tainted 5.6.0-rc3-syzkaller #0 [ 73.829600][ T9526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.842262][ T9526] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 73.849564][ T9526] 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 [ 73.873233][ T9526] RSP: 0018:ffffc90001d276c0 EFLAGS: 00010a07 [ 73.883140][ T9526] RAX: 1ffff1101803ba87 RBX: ffff8880c01dd43c RCX: 0000000000000000 [ 73.895057][ T9526] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 73.909786][ T9526] RBP: ffffc90001d277b0 R08: ffffffff86a264c3 R09: ffffffff83bbc3c7 [ 73.919187][ T9526] R10: ffff8880939604c0 R11: 0000000000000004 R12: dffffc0000000000 [ 73.928000][ T9526] R13: ffffc90001d27ab0 R14: ffff8880a01dd440 R15: 0000000000000010 [ 73.936486][ T9526] FS: 0000000001391880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 73.946224][ T9526] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.953445][ T9526] CR2: ffffed101803ba87 CR3: 000000009d285000 CR4: 00000000001406e0 [ 73.963363][ T9526] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.974717][ T9526] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.983563][ T9526] Call Trace: [ 73.987768][ T9526] ? memcpy+0x49/0x60 [ 73.993506][ T9526] ethnl_update_bitset+0x3c/0x50 [ 74.000269][ T9526] ethnl_set_linkmodes+0x5d4/0xf80 [ 74.006010][ T9526] genl_rcv_msg+0xf15/0x13e0 [ 74.011091][ T9526] netlink_rcv_skb+0x19e/0x3e0 [ 74.016967][ T9526] ? genl_unbind+0x250/0x250 [ 74.021918][ T9526] genl_rcv+0x28/0x40 [ 74.026756][ T9526] netlink_unicast+0x766/0x920 [ 74.032023][ T9526] netlink_sendmsg+0xa2b/0xd40 [ 74.037352][ T9526] ? netlink_getsockopt+0x9f0/0x9f0 [ 74.044645][ T9526] ____sys_sendmsg+0x4f7/0x7f0 [ 74.050508][ T9526] __sys_sendmsg+0x1ed/0x290 [ 74.056284][ T9526] ? check_preemption_disabled+0xb4/0x260 [ 74.065029][ T9526] ? debug_smp_processor_id+0x9/0x20 [ 74.072075][ T9526] ? __kasan_check_write+0x14/0x20 [ 74.079404][ T9526] ? __fpregs_load_activate+0x194/0x220 [ 74.086422][ T9526] ? switch_fpu_return+0xe/0x10 [ 74.093455][ T9526] ? prepare_exit_to_usermode+0x221/0x5b0 [ 74.100429][ T9526] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 74.106566][ T9526] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 74.113508][ T9526] ? do_syscall_64+0x1d/0x1c0 [ 74.119733][ T9526] __x64_sys_sendmsg+0x7f/0x90 [ 74.125619][ T9526] do_syscall_64+0xf7/0x1c0 [ 74.131638][ T9526] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.139489][ T9526] RIP: 0033:0x445b39 [ 74.144232][ T9526] 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 [ 74.170481][ T9526] RSP: 002b:00007ffe82d62748 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.180553][ T9526] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 74.190677][ T9526] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 74.200743][ T9526] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 74.210236][ T9526] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.218628][ T9526] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 74.228706][ T9526] Modules linked in: [ 74.233325][ T9526] CR2: ffffed101803ba87 [ 74.238149][ T9526] ---[ end trace 3d06e0808f11e057 ]--- [ 74.244311][ T9526] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 74.251413][ T9526] 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 [ 74.279489][ T9526] RSP: 0018:ffffc90001d276c0 EFLAGS: 00010a07 [ 74.287118][ T9526] RAX: 1ffff1101803ba87 RBX: ffff8880c01dd43c RCX: 0000000000000000 [ 74.299572][ T9526] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 74.311113][ T9526] RBP: ffffc90001d277b0 R08: ffffffff86a264c3 R09: ffffffff83bbc3c7 [ 74.319572][ T9526] R10: ffff8880939604c0 R11: 0000000000000004 R12: dffffc0000000000 [ 74.328638][ T9526] R13: ffffc90001d27ab0 R14: ffff8880a01dd440 R15: 0000000000000010 [ 74.338061][ T9526] FS: 0000000001391880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 74.352175][ T9526] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.361008][ T9526] CR2: ffffed101803ba87 CR3: 000000009d285000 CR4: 00000000001406e0 [ 74.370995][ T9526] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.380020][ T9526] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.390604][ T9526] Kernel panic - not syncing: Fatal exception [ 74.400788][ T9526] Kernel Offset: disabled [ 74.406539][ T9526] Rebooting in 86400 seconds..