[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.330251][ T27] audit: type=1800 audit(1582777239.145:25): pid=9535 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.363683][ T27] audit: type=1800 audit(1582777239.155:26): pid=9535 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.403395][ T27] audit: type=1800 audit(1582777239.155:27): pid=9535 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[ 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 '10.128.1.39' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 88.291741][ T9690] IPVS: ftp: loaded support on port[0] = 21 [ 88.327882][ T9690] BUG: unable to handle page fault for address: ffffed10180db587 [ 88.335636][ T9690] #PF: supervisor read access in kernel mode [ 88.341592][ T9690] #PF: error_code(0x0000) - not-present page [ 88.347561][ T9690] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 88.354499][ T9690] Oops: 0000 [#1] PREEMPT SMP KASAN [ 88.359700][ T9690] CPU: 1 PID: 9690 Comm: syz-executor441 Not tainted 5.6.0-rc3-syzkaller #0 [ 88.368351][ T9690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.378403][ T9690] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 88.385157][ T9690] 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 [ 88.404756][ T9690] RSP: 0018:ffffc90001cd7248 EFLAGS: 00010a07 [ 88.410797][ T9690] RAX: dffffc0000000000 RBX: ffff8880a06dac3c RCX: ffffffff867055d4 [ 88.418742][ T9690] RDX: 1ffff110180db587 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 88.426690][ T9690] RBP: ffffc90001cd73b0 R08: ffff8880a97c45c0 R09: ffffc90001cd7318 [ 88.434651][ T9690] R10: fffff5200039ae68 R11: ffffc90001cd7347 R12: 0000000000000010 [ 88.442597][ T9690] R13: ffff8880c06dac3c R14: ffff8880a06dac4c R15: ffffc90001cd7388 [ 88.450548][ T9690] FS: 000000000167e880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 88.459464][ T9690] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.466033][ T9690] CR2: ffffed10180db587 CR3: 00000000a84da000 CR4: 00000000001406e0 [ 88.473986][ T9690] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.481946][ T9690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.489903][ T9690] Call Trace: [ 88.493181][ T9690] ? __mutex_lock+0x458/0x13c0 [ 88.497927][ T9690] ? lock_downgrade+0x920/0x920 [ 88.502762][ T9690] ? ethnl_bitmap32_clear+0x390/0x390 [ 88.508159][ T9690] ? mutex_trylock+0x2d0/0x2d0 [ 88.512905][ T9690] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 88.519121][ T9690] ? ethnl_default_notify+0x6b0/0x6b0 [ 88.524472][ T9690] ethnl_update_bitset+0x4d/0x67 [ 88.529401][ T9690] ethnl_set_linkmodes+0x461/0xc30 [ 88.534498][ T9690] ? __kasan_check_read+0x11/0x20 [ 88.539578][ T9690] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 88.545112][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.551339][ T9690] ? kernel_text_address+0xe9/0x110 [ 88.556526][ T9690] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 88.561963][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.568191][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.574419][ T9690] ? security_capable+0x95/0xc0 [ 88.579282][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.585576][ T9690] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 88.591957][ T9690] genl_rcv_msg+0x67d/0xea0 [ 88.596437][ T9690] ? genl_rcv_msg+0x67d/0xea0 [ 88.601104][ T9690] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 88.607418][ T9690] ? __kasan_check_read+0x11/0x20 [ 88.612429][ T9690] ? __lock_acquire+0x8a0/0x4a00 [ 88.617358][ T9690] ? find_held_lock+0x35/0x130 [ 88.622105][ T9690] netlink_rcv_skb+0x177/0x450 [ 88.626851][ T9690] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 88.633275][ T9690] ? netlink_ack+0xb50/0xb50 [ 88.637856][ T9690] ? __kasan_check_write+0x14/0x20 [ 88.642948][ T9690] ? netlink_deliver_tap+0x248/0xbf0 [ 88.648326][ T9690] genl_rcv+0x29/0x40 [ 88.652290][ T9690] netlink_unicast+0x59e/0x7e0 [ 88.657034][ T9690] ? netlink_attachskb+0x870/0x870 [ 88.662129][ T9690] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 88.667844][ T9690] ? __check_object_size+0x3d/0x437 [ 88.673035][ T9690] netlink_sendmsg+0x91c/0xea0 [ 88.677795][ T9690] ? netlink_unicast+0x7e0/0x7e0 [ 88.682722][ T9690] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 88.688263][ T9690] ? apparmor_socket_sendmsg+0x2a/0x30 [ 88.693710][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.699994][ T9690] ? security_socket_sendmsg+0x8d/0xc0 [ 88.705445][ T9690] ? netlink_unicast+0x7e0/0x7e0 [ 88.710360][ T9690] sock_sendmsg+0xd7/0x130 [ 88.714762][ T9690] ____sys_sendmsg+0x753/0x880 [ 88.719517][ T9690] ? kernel_sendmsg+0x50/0x50 [ 88.724175][ T9690] ? debug_object_active_state+0x28a/0x350 [ 88.729962][ T9690] ? find_held_lock+0x35/0x130 [ 88.734712][ T9690] ___sys_sendmsg+0x100/0x170 [ 88.739413][ T9690] ? sendmsg_copy_msghdr+0x70/0x70 [ 88.744503][ T9690] ? lockdep_hardirqs_on+0x421/0x5e0 [ 88.749775][ T9690] ? __kasan_check_read+0x11/0x20 [ 88.754785][ T9690] ? mark_lock+0xc2/0x1220 [ 88.759182][ T9690] ? __kasan_check_read+0x11/0x20 [ 88.764182][ T9690] ? __lock_acquire+0x16f2/0x4a00 [ 88.769181][ T9690] ? debug_object_deactivate+0x320/0x320 [ 88.774811][ T9690] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 88.780961][ T9690] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.787184][ T9690] ? __fget_light+0x1ad/0x270 [ 88.791844][ T9690] ? __fdget+0x1b/0x20 [ 88.795891][ T9690] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.802130][ T9690] __sys_sendmsg+0x105/0x1d0 [ 88.806701][ T9690] ? __sys_sendmsg_sock+0xc0/0xc0 [ 88.811704][ T9690] ? lockdep_hardirqs_on+0x421/0x5e0 [ 88.816973][ T9690] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 88.822406][ T9690] ? do_syscall_64+0x26/0x790 [ 88.827063][ T9690] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.833124][ T9690] ? do_syscall_64+0x26/0x790 [ 88.837805][ T9690] __x64_sys_sendmsg+0x78/0xb0 [ 88.842562][ T9690] do_syscall_64+0xfa/0x790 [ 88.847043][ T9690] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.852904][ T9690] RIP: 0033:0x445329 [ 88.856773][ T9690] Code: 44 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 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 2b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 88.876349][ T9690] RSP: 002b:00007ffee7b67008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.884735][ T9690] RAX: ffffffffffffffda RBX: 00007ffee7b67020 RCX: 0000000000445329 [ 88.892681][ T9690] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 88.900625][ T9690] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000bb1414ac [ 88.908570][ T9690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.916513][ T9690] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 88.924463][ T9690] Modules linked in: [ 88.928377][ T9690] CR2: ffffed10180db587 [ 88.932559][ T9690] ---[ end trace b6925e0bc8c7e549 ]--- [ 88.938005][ T9690] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 88.944797][ T9690] 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 [ 88.964381][ T9690] RSP: 0018:ffffc90001cd7248 EFLAGS: 00010a07 [ 88.970452][ T9690] RAX: dffffc0000000000 RBX: ffff8880a06dac3c RCX: ffffffff867055d4 [ 88.978400][ T9690] RDX: 1ffff110180db587 RSI: ffffffff867055e2 RDI: 0000000000000005 [ 88.986346][ T9690] RBP: ffffc90001cd73b0 R08: ffff8880a97c45c0 R09: ffffc90001cd7318 [ 88.994315][ T9690] R10: fffff5200039ae68 R11: ffffc90001cd7347 R12: 0000000000000010 [ 89.002271][ T9690] R13: ffff8880c06dac3c R14: ffff8880a06dac4c R15: ffffc90001cd7388 [ 89.010229][ T9690] FS: 000000000167e880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 89.019134][ T9690] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.025701][ T9690] CR2: ffffed10180db587 CR3: 00000000a84da000 CR4: 00000000001406e0 [ 89.033658][ T9690] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.041627][ T9690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.049595][ T9690] Kernel panic - not syncing: Fatal exception [ 89.056956][ T9690] Kernel Offset: disabled [ 89.061291][ T9690] Rebooting in 86400 seconds..