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Additional info: reporter: libreport-2.6.4 BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff813f40cb>] __list_add+0x1b/0xb0 PGD 0 Oops: 0000 [#1] SMP Modules linked in: rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables cmac bnep arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iwlmvm iTCO_wdt mei_wdt iTCO_vendor_support irqbypass mac80211 uvcvideo intel_cstate intel_uncore videobuf2_vmalloc intel_rapl_perf videobuf2_memops videobuf2_v4l2 videobuf2_core snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic videodev snd_hda_intel iwlwifi media snd_hda_codec btusb btrtl snd_hda_core btbcm rtsx_pci_ms joydev btintel snd_hwdep cfg80211 bluetooth snd_seq i2c_i801 memstick lpc_ich snd_seq_device snd_pcm mei_me snd_timer shpchp mei wmi thinkpad_acpi snd soundcore rfkill tpm_tis tpm nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc dm_crypt i915 rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul i2c_algo_bit drm_kms_helper crc32c_intel drm ghash_clmulni_intel e1000e serio_raw rtsx_pci ptp pps_core fjes video CPU: 0 PID: 1076 Comm: systemd-logind Not tainted 4.7.2-100.fc23.x86_64 #1 Hardware name: LENOVO 20ARS19C05/20ARS19C05, BIOS GJET75WW (2.25 ) 03/28/2014 task: ffff88030d259e80 ti: ffff880301014000 task.ti: ffff880301014000 RIP: 0010:[<ffffffff813f40cb>] [<ffffffff813f40cb>] __list_add+0x1b/0xb0 RSP: 0018:ffff880301017898 EFLAGS: 00010246 RAX: ffff88030b789a58 RBX: ffff8803010178d0 RCX: 0000000000000000 RDX: ffff88030b789a58 RSI: 0000000000000000 RDI: ffff8803010178d0 RBP: ffff8803010178b0 R08: 0000000000000000 R09: ffff880311c03a40 R10: ffff88030ced15a0 R11: 0000000000000730 R12: 0000000000000000 R13: ffff88030b789a58 R14: 00000000ffffffff R15: ffff88030b789a50 FS: 00007fc1ea45c8c0(0000) GS:ffff88031e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000301066000 CR4: 00000000001406f0 Stack: ffff880211796080 ffff88030d259e80 ffff88030b789a54 ffff880301017920 ffffffff817e1ab2 dedededec00a08d7 ffff88030b789a58 ffff88030ccbb250 ffff880211796080 ffff8802fd18b800 000000005589b5f3 ffff88030c23f400 Call Trace: [<ffffffff817e1ab2>] __ww_mutex_lock_slowpath+0xb2/0x1c0 [<ffffffff817e1c1b>] __ww_mutex_lock+0x5b/0xa0 [<ffffffffc00af53e>] drm_modeset_lock+0x4e/0xd0 [drm] [<ffffffffc00b0166>] ? drm_atomic_get_connector_state+0x156/0x1b0 [drm] [<ffffffffc00b0044>] drm_atomic_get_connector_state+0x34/0x1b0 [drm] [<ffffffffc012e011>] __drm_atomic_helper_set_config+0x281/0x330 [drm_kms_helper] [<ffffffffc012f231>] restore_fbdev_mode+0x221/0x260 [drm_kms_helper] [<ffffffffc00af65a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] [<ffffffffc0131723>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [<ffffffffc013179d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [<ffffffffc02188aa>] intel_fbdev_set_par+0x1a/0x60 [i915] [<ffffffff81454ef6>] fb_set_var+0x236/0x470 [<ffffffff8121d0ed>] ? kmem_cache_alloc+0x1cd/0x1e0 [<ffffffff81356467>] ? avc_alloc_node+0x27/0x120 [<ffffffff81356467>] ? avc_alloc_node+0x27/0x120 [<ffffffff817e3e7e>] ? _raw_spin_unlock_irqrestore+0xe/0x10 [<ffffffff8135690c>] ? avc_compute_av+0x14c/0x1e0 [<ffffffff8144b07f>] fbcon_blank+0x30f/0x350 [<ffffffff814d5393>] do_unblank_screen+0xd3/0x1a0 [<ffffffff814cb0ea>] vt_ioctl+0x50a/0x12e0 [<ffffffff81257309>] ? fasync_helper+0x79/0x90 [<ffffffff814bf5e6>] tty_ioctl+0x356/0xc50 [<ffffffff8125bdfe>] ? dput+0xbe/0x230 [<ffffffff812579c1>] do_vfs_ioctl+0xa1/0x5b0 [<ffffffff810bd766>] ? task_work_run+0x86/0xa0 [<ffffffff81257f49>] SyS_ioctl+0x79/0x90 [<ffffffff817e42b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4 Code: b6 ca ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 55 41 54 53 4c 8b 42 08 48 89 fb 49 89 f4 49 89 d5 49 39 f0 75 29 <4d> 8b 04 24 4d 39 c5 75 47 49 39 dc 74 62 49 39 dd 74 5d 49 89 RIP [<ffffffff813f40cb>] __list_add+0x1b/0xb0 RSP <ffff880301017898> Potential duplicate: bug 1376371
Created attachment 1209560 [details] File: dmesg
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Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.