[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 71.026449][ T27] audit: type=1800 audit(1582786601.359:25): pid=9628 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 71.047641][ T27] audit: type=1800 audit(1582786601.359:26): pid=9628 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 71.076681][ T27] audit: type=1800 audit(1582786601.359:27): pid=9628 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.0.207' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 94.234900][ T9783] IPVS: ftp: loaded support on port[0] = 21 [ 94.278898][ T9785] BUG: unable to handle page fault for address: ffffed10186d6687 [ 94.286757][ T9785] #PF: supervisor read access in kernel mode [ 94.292773][ T9785] #PF: error_code(0x0000) - not-present page [ 94.298730][ T9785] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 94.305275][ T9785] Oops: 0000 [#1] PREEMPT SMP KASAN [ 94.310452][ T9785] CPU: 1 PID: 9785 Comm: syz-executor579 Not tainted 5.6.0-rc3-syzkaller #0 [ 94.319098][ T9785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.329160][ T9785] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 94.335920][ T9785] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 94.355508][ T9785] RSP: 0018:ffffc90003647248 EFLAGS: 00010a07 [ 94.361560][ T9785] RAX: dffffc0000000000 RBX: ffff8880a36b343c RCX: ffffffff867055d4 [ 94.369522][ T9785] RDX: 1ffff110186d6687 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 94.377477][ T9785] RBP: ffffc900036473b0 R08: ffff88809276c0c0 R09: ffffc90003647318 [ 94.385429][ T9785] R10: fffff520006c8e68 R11: ffffc90003647347 R12: 0000000000000010 [ 94.393384][ T9785] R13: ffff8880c36b343c R14: ffff8880a36b344c R15: ffffc90003647388 [ 94.401349][ T9785] FS: 0000000000915880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 94.410258][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.416839][ T9785] CR2: ffffed10186d6687 CR3: 00000000a7a67000 CR4: 00000000001406e0 [ 94.424841][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.432795][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.440751][ T9785] Call Trace: [ 94.444029][ T9785] ? __mutex_lock+0x458/0x13c0 [ 94.448777][ T9785] ? lock_downgrade+0x920/0x920 [ 94.453618][ T9785] ? ethnl_bitmap32_clear+0x390/0x390 [ 94.459070][ T9785] ? mutex_trylock+0x2d0/0x2d0 [ 94.463840][ T9785] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 94.470071][ T9785] ? ethnl_default_notify+0x6b0/0x6b0 [ 94.475423][ T9785] ethnl_update_bitset+0x4d/0x67 [ 94.480349][ T9785] ethnl_set_linkmodes+0x461/0xc30 [ 94.485465][ T9785] ? __kasan_check_read+0x11/0x20 [ 94.490475][ T9785] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 94.496012][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.502236][ T9785] ? kernel_text_address+0xe9/0x110 [ 94.507429][ T9785] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 94.512889][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.519115][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.525338][ T9785] ? security_capable+0x95/0xc0 [ 94.530181][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.536403][ T9785] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 94.542718][ T9785] genl_rcv_msg+0x67d/0xea0 [ 94.547203][ T9785] ? genl_rcv_msg+0x67d/0xea0 [ 94.551865][ T9785] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 94.558175][ T9785] ? __kasan_check_read+0x11/0x20 [ 94.563210][ T9785] ? __lock_acquire+0x8a0/0x4a00 [ 94.568142][ T9785] ? find_held_lock+0x35/0x130 [ 94.572909][ T9785] netlink_rcv_skb+0x177/0x450 [ 94.577660][ T9785] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 94.583983][ T9785] ? netlink_ack+0xb50/0xb50 [ 94.588558][ T9785] ? __kasan_check_write+0x14/0x20 [ 94.593661][ T9785] ? netlink_deliver_tap+0x248/0xbf0 [ 94.599073][ T9785] genl_rcv+0x29/0x40 [ 94.603044][ T9785] netlink_unicast+0x59e/0x7e0 [ 94.607814][ T9785] ? netlink_attachskb+0x870/0x870 [ 94.612910][ T9785] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 94.618616][ T9785] ? __check_object_size+0x3d/0x437 [ 94.623797][ T9785] netlink_sendmsg+0x91c/0xea0 [ 94.628547][ T9785] ? netlink_unicast+0x7e0/0x7e0 [ 94.633467][ T9785] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 94.638993][ T9785] ? apparmor_socket_sendmsg+0x2a/0x30 [ 94.644445][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.650661][ T9785] ? security_socket_sendmsg+0x8d/0xc0 [ 94.656102][ T9785] ? netlink_unicast+0x7e0/0x7e0 [ 94.661023][ T9785] sock_sendmsg+0xd7/0x130 [ 94.665418][ T9785] ____sys_sendmsg+0x753/0x880 [ 94.670185][ T9785] ? kernel_sendmsg+0x50/0x50 [ 94.674845][ T9785] ? debug_object_active_state+0x28a/0x350 [ 94.680634][ T9785] ? find_held_lock+0x35/0x130 [ 94.685384][ T9785] ___sys_sendmsg+0x100/0x170 [ 94.690048][ T9785] ? sendmsg_copy_msghdr+0x70/0x70 [ 94.695143][ T9785] ? lockdep_hardirqs_on+0x421/0x5e0 [ 94.700412][ T9785] ? __kasan_check_read+0x11/0x20 [ 94.705420][ T9785] ? mark_lock+0xc2/0x1220 [ 94.709824][ T9785] ? __kasan_check_read+0x11/0x20 [ 94.714827][ T9785] ? __lock_acquire+0x16f2/0x4a00 [ 94.719831][ T9785] ? debug_object_deactivate+0x320/0x320 [ 94.725445][ T9785] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 94.731590][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.737812][ T9785] ? __fget_light+0x1ad/0x270 [ 94.742477][ T9785] ? __fdget+0x1b/0x20 [ 94.746540][ T9785] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.752793][ T9785] __sys_sendmsg+0x105/0x1d0 [ 94.757392][ T9785] ? __sys_sendmsg_sock+0xc0/0xc0 [ 94.762485][ T9785] ? lockdep_hardirqs_on+0x421/0x5e0 [ 94.767777][ T9785] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 94.773219][ T9785] ? do_syscall_64+0x26/0x790 [ 94.777933][ T9785] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.783987][ T9785] ? do_syscall_64+0x26/0x790 [ 94.788651][ T9785] __x64_sys_sendmsg+0x78/0xb0 [ 94.793454][ T9785] do_syscall_64+0xfa/0x790 [ 94.797968][ T9785] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.803843][ T9785] RIP: 0033:0x445b39 [ 94.807770][ T9785] 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 [ 94.827355][ T9785] RSP: 002b:00007fff01a13058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 94.835748][ T9785] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 94.843700][ T9785] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 94.851649][ T9785] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 94.859604][ T9785] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000017012 [ 94.867558][ T9785] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 94.875517][ T9785] Modules linked in: [ 94.879401][ T9785] CR2: ffffed10186d6687 [ 94.883550][ T9785] ---[ end trace 780fcb30e99bcba2 ]--- [ 94.889016][ T9785] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 94.895764][ T9785] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 94.915349][ T9785] RSP: 0018:ffffc90003647248 EFLAGS: 00010a07 [ 94.921397][ T9785] RAX: dffffc0000000000 RBX: ffff8880a36b343c RCX: ffffffff867055d4 [ 94.929347][ T9785] RDX: 1ffff110186d6687 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 94.937299][ T9785] RBP: ffffc900036473b0 R08: ffff88809276c0c0 R09: ffffc90003647318 [ 94.945251][ T9785] R10: fffff520006c8e68 R11: ffffc90003647347 R12: 0000000000000010 [ 94.953204][ T9785] R13: ffff8880c36b343c R14: ffff8880a36b344c R15: ffffc90003647388 [ 94.961157][ T9785] FS: 0000000000915880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 94.970081][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.976645][ T9785] CR2: ffffed10186d6687 CR3: 00000000a7a67000 CR4: 00000000001406e0 [ 94.984595][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.992555][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.000542][ T9785] Kernel panic - not syncing: Fatal exception [ 95.007917][ T9785] Kernel Offset: disabled [ 95.012249][ T9785] Rebooting in 86400 seconds..