[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 93.295024][ T28] audit: type=1800 audit(1583070854.652:25): pid=9580 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 93.342573][ T28] audit: type=1800 audit(1583070854.652:26): pid=9580 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 93.401704][ T28] audit: type=1800 audit(1583070854.652:27): pid=9580 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 '10.128.0.206' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 104.612556][ T9732] IPVS: ftp: loaded support on port[0] = 21 [ 104.652609][ T9733] BUG: unable to handle page fault for address: ffffed1018d56d87 [ 104.660349][ T9733] #PF: supervisor read access in kernel mode [ 104.666325][ T9733] #PF: error_code(0x0000) - not-present page [ 104.672285][ T9733] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 104.678813][ T9733] Oops: 0000 [#1] PREEMPT SMP KASAN [ 104.684192][ T9733] CPU: 1 PID: 9733 Comm: syz-executor307 Not tainted 5.6.0-rc2-syzkaller #0 [ 104.692923][ T9733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.702982][ T9733] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 104.709731][ T9733] Code: 45 85 e4 0f 84 aa 03 00 00 e8 8e 71 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 [ 104.729382][ T9733] RSP: 0018:ffffc9000614f248 EFLAGS: 00010a06 [ 104.735435][ T9733] RAX: dffffc0000000000 RBX: ffff8880a6ab6c38 RCX: ffffffff86701624 [ 104.743626][ T9733] RDX: 1ffff11018d56d87 RSI: ffffffff86701632 RDI: 0000000000000005 [ 104.751611][ T9733] RBP: ffffc9000614f3b0 R08: ffff8880a6dba300 R09: ffffc9000614f318 [ 104.759591][ T9733] R10: fffff52000c29e68 R11: ffffc9000614f347 R12: 0000000000000010 [ 104.767558][ T9733] R13: ffff8880c6ab6c38 R14: ffff8880a6ab6c48 R15: ffffc9000614f388 [ 104.775520][ T9733] FS: 00000000016d8880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 104.784440][ T9733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 104.791226][ T9733] CR2: ffffed1018d56d87 CR3: 00000000957de000 CR4: 00000000001406e0 [ 104.799249][ T9733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 104.807557][ T9733] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 104.815520][ T9733] Call Trace: [ 104.818850][ T9733] ? __mutex_lock+0x458/0x13c0 [ 104.823666][ T9733] ? lock_downgrade+0x920/0x920 [ 104.828520][ T9733] ? ethnl_bitmap32_clear+0x390/0x390 [ 104.833928][ T9733] ? mutex_trylock+0x2d0/0x2d0 [ 104.838696][ T9733] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 104.845058][ T9733] ? ethnl_default_notify+0x6b0/0x6b0 [ 104.850420][ T9733] ethnl_update_bitset+0x4d/0x67 [ 104.855349][ T9733] ethnl_set_linkmodes+0x461/0xc30 [ 104.860453][ T9733] ? __kasan_check_read+0x11/0x20 [ 104.865570][ T9733] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 104.871107][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.877346][ T9733] ? kernel_text_address+0xe9/0x110 [ 104.882660][ T9733] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 104.888113][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.894451][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.900677][ T9733] ? security_capable+0x95/0xc0 [ 104.905529][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 104.911849][ T9733] ? genl_family_rcv_msg_attrs_parse+0x1cb/0x320 [ 104.918171][ T9733] genl_rcv_msg+0x67d/0xea0 [ 104.922670][ T9733] ? genl_rcv_msg+0x67d/0xea0 [ 104.927342][ T9733] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 104.933662][ T9733] ? __kasan_check_read+0x11/0x20 [ 104.938675][ T9733] ? __lock_acquire+0x8a0/0x4a00 [ 104.943607][ T9733] ? find_held_lock+0x35/0x130 [ 104.948367][ T9733] netlink_rcv_skb+0x177/0x450 [ 104.953134][ T9733] ? genl_family_rcv_msg_attrs_parse+0x320/0x320 [ 104.959551][ T9733] ? netlink_ack+0xb50/0xb50 [ 104.964138][ T9733] ? __kasan_check_write+0x14/0x20 [ 104.969248][ T9733] ? netlink_deliver_tap+0x248/0xbf0 [ 104.974529][ T9733] genl_rcv+0x29/0x40 [ 104.978502][ T9733] netlink_unicast+0x59e/0x7e0 [ 104.983261][ T9733] ? netlink_attachskb+0x870/0x870 [ 104.988371][ T9733] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 104.994087][ T9733] ? __check_object_size+0x3d/0x437 [ 104.999281][ T9733] netlink_sendmsg+0x91c/0xea0 [ 105.004090][ T9733] ? netlink_unicast+0x7e0/0x7e0 [ 105.009015][ T9733] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 105.014553][ T9733] ? apparmor_socket_sendmsg+0x2a/0x30 [ 105.020002][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.026231][ T9733] ? security_socket_sendmsg+0x8d/0xc0 [ 105.031857][ T9733] ? netlink_unicast+0x7e0/0x7e0 [ 105.036847][ T9733] sock_sendmsg+0xd7/0x130 [ 105.041252][ T9733] ____sys_sendmsg+0x753/0x880 [ 105.046007][ T9733] ? kernel_sendmsg+0x50/0x50 [ 105.050680][ T9733] ? debug_object_active_state+0x28a/0x350 [ 105.056490][ T9733] ? find_held_lock+0x35/0x130 [ 105.061258][ T9733] ___sys_sendmsg+0x100/0x170 [ 105.065937][ T9733] ? sendmsg_copy_msghdr+0x70/0x70 [ 105.071044][ T9733] ? lockdep_hardirqs_on+0x421/0x5e0 [ 105.076329][ T9733] ? __kasan_check_read+0x11/0x20 [ 105.081371][ T9733] ? mark_lock+0xc2/0x1220 [ 105.085776][ T9733] ? __kasan_check_read+0x11/0x20 [ 105.090817][ T9733] ? __lock_acquire+0x16f2/0x4a00 [ 105.095834][ T9733] ? debug_object_deactivate+0x320/0x320 [ 105.101458][ T9733] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 105.107617][ T9733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 105.113855][ T9733] ? __fget_light+0x1ad/0x270 [ 105.118525][ T9733] ? __fdget+0x1b/0x20 [ 105.122581][ T9733] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 105.128814][ T9733] __sys_sendmsg+0x105/0x1d0 [ 105.133583][ T9733] ? __sys_sendmsg_sock+0xc0/0xc0 [ 105.138625][ T9733] ? lockdep_hardirqs_on+0x421/0x5e0 [ 105.143925][ T9733] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.149387][ T9733] ? do_syscall_64+0x26/0x790 [ 105.154046][ T9733] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.160104][ T9733] ? do_syscall_64+0x26/0x790 [ 105.164787][ T9733] __x64_sys_sendmsg+0x78/0xb0 [ 105.169551][ T9733] do_syscall_64+0xfa/0x790 [ 105.174049][ T9733] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 105.179930][ T9733] RIP: 0033:0x445b39 [ 105.183820][ T9733] 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 [ 105.203414][ T9733] RSP: 002b:00007ffe31e7f828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 105.211807][ T9733] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 105.219767][ T9733] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 105.227753][ T9733] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 105.235772][ T9733] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 105.243735][ T9733] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 105.252308][ T9733] Modules linked in: [ 105.256189][ T9733] CR2: ffffed1018d56d87 [ 105.260337][ T9733] ---[ end trace 9fe348357368358b ]--- [ 105.265794][ T9733] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 105.272545][ T9733] Code: 45 85 e4 0f 84 aa 03 00 00 e8 8e 71 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 [ 105.292167][ T9733] RSP: 0018:ffffc9000614f248 EFLAGS: 00010a06 [ 105.298225][ T9733] RAX: dffffc0000000000 RBX: ffff8880a6ab6c38 RCX: ffffffff86701624 [ 105.306187][ T9733] RDX: 1ffff11018d56d87 RSI: ffffffff86701632 RDI: 0000000000000005 [ 105.314201][ T9733] RBP: ffffc9000614f3b0 R08: ffff8880a6dba300 R09: ffffc9000614f318 [ 105.322162][ T9733] R10: fffff52000c29e68 R11: ffffc9000614f347 R12: 0000000000000010 [ 105.330125][ T9733] R13: ffff8880c6ab6c38 R14: ffff8880a6ab6c48 R15: ffffc9000614f388 [ 105.338087][ T9733] FS: 00000000016d8880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 105.347046][ T9733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.353616][ T9733] CR2: ffffed1018d56d87 CR3: 00000000957de000 CR4: 00000000001406e0 [ 105.361580][ T9733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.369540][ T9733] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.377502][ T9733] Kernel panic - not syncing: Fatal exception [ 105.384850][ T9733] Kernel Offset: disabled [ 105.389184][ T9733] Rebooting in 86400 seconds..