Additional info: reporter: libreport-2.9.5 BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI Modules linked in: xt_addrtype br_netfilter overlay cmac arc4 md4 nls_utf8 cifs ccm dns_resolver fscache fuse xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables sunrpc vfat fat intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel joydev irqbypass crct10dif_pclmul snd_hda_codec crc32_pclmul snd_hda_core ghash_clmulni_intel snd_hwdep mei_wdt snd_seq intel_cstate intel_uncore snd_seq_device iTCO_wdt gpio_ich iTCO_vendor_support intel_rapl_perf snd_pcm dcdbas snd_timer mei_me snd soundcore mei lpc_ich i2c_i801 binfmt_misc i915 i2c_algo_bit drm_kms_helper e1000e crc32c_intel drm video CPU: 3 PID: 1693 Comm: kworker/3:2 Not tainted 4.17.3-200.fc28.x86_64 #1 Hardware name: Dell Inc. OptiPlex 7020/02YYK5, BIOS A03 01/08/2015 Workqueue: cifsiod smb2_reconnect_server [cifs] RIP: 0010:cifs_send_recv+0x19f/0x3c0 [cifs] RSP: 0018:ffffaa13ce913b70 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffaa13ce913d00 RDX: 0000000000000004 RSI: 0000000000000202 RDI: ffff9ba1a6daea00 RBP: ffff9ba1a6daea00 R08: 0000000000000000 R09: ffff9ba1fc9f0098 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000200 R13: 0000000000000000 R14: ffffaa13ce913ce8 R15: ffff9ba1cdf03e00 FS: 0000000000000000(0000) GS:ffff9ba21eb80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 000000017920a001 CR4: 00000000001606e0 Call Trace: smb2_send_recv+0x10d/0x1f0 [cifs] ? __schedule+0x23c/0x850 ? ata_scsi_queuecmd+0xa6/0x210 ? cifs_small_buf_get+0x16/0x20 [cifs] SMB2_negotiate+0x14c/0x7a0 [cifs] ? smb2_negotiate+0x19/0x30 [cifs] smb2_negotiate+0x19/0x30 [cifs] cifs_negotiate_protocol+0x6c/0xc0 [cifs] smb2_reconnect+0xfa/0x410 [cifs] ? SMB2_echo+0x15e/0x1e0 [cifs] ? dequeue_entity+0xdf/0x400 smb2_reconnect_server+0x1b5/0x340 [cifs] process_one_work+0x187/0x340 worker_thread+0x2e/0x380 ? pwq_unbound_release_workfn+0xd0/0xd0 kthread+0x112/0x130 ? kthread_create_worker_on_cpu+0x70/0x70 ret_from_fork+0x35/0x40 Code: 85 af 01 00 00 48 8b 45 50 48 85 c0 0f 84 d1 00 00 00 83 7d 5c 04 0f 85 c7 00 00 00 48 8b 4c 24 08 48 89 ef 48 89 01 49 8b 47 48 <48> 8b 50 40 8b 45 58 48 03 42 20 48 89 41 08 31 c0 f6 45 66 01 RIP: cifs_send_recv+0x19f/0x3c0 [cifs] RSP: ffffaa13ce913b70 CR2: 0000000000000040
Created attachment 1458365 [details] File: dmesg
We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 28 kernel bugs. Fedora 28 has now been rebased to 4.18.10-300.fc28. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 29, and are still experiencing this issue, please change the version to Fedora 29. If you experience different issues, please open a new bug report for those.