Created attachment 1473289 [details]
File: dmesg

I got a backtrace like the one above when trying to read an old cd using a usb cd reader. Some other cds worked fine to read using the same hardware.

I downgraded to kernel-4.16.3-301.fc28.x86_64 and then it worked fine to read the cd.

Description of problem:
Insert a dvd or cd to a tray

Version-Release number of selected component:
kernel-core-4.17.14-202.fc28

Additional info:
reporter:       libreport-2.9.5
cmdline:        BOOT_IMAGE=/vmlinuz-4.17.14-202.fc28.x86_64 root=PARTUUID=45c2f608-6b5c-4b02-9bd2-6e718d4e3630 ro vconsole.font=latarcyrheb-sun16 rhgb quiet LANG=en_US.UTF-8
crash_function: udf_read_ptagged
kernel:         4.17.14-202.fc28.x86_64
runlevel:       N 5
type:           Kerneloops

Truncated backtrace:
BUG: unable to handle kernel paging request at ffffffffffffffa4
PGD 21520e067 P4D 21520e067 PUD 215210067 PMD 0 
Oops: 0000 [#1] SMP PTI
Modules linked in: nls_utf8 udf crc_itu_t fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun devlink nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 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_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables sunrpc vfat fat snd_hda_codec_hdmi intel_rapl iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek x86_pkg_temp_thermal mxm_wmi intel_powerclamp snd_hda_codec_generic coretemp kvm_intel kvm snd_hda_intel snd_hda_codec snd_hda_core irqbypass
 snd_hwdep crct10dif_pclmul snd_seq joydev crc32_pclmul snd_seq_device snd_pcm ghash_clmulni_intel intel_cstate intel_uncore intel_rapl_perf snd_timer mei_me snd mei soundcore i2c_i801 wmi acpi_pad pcc_cpufreq binfmt_misc uas usb_storage i915 i2c_algo_bit drm_kms_helper drm e1000e crc32c_intel video
CPU: 3 PID: 11787 Comm: pool Not tainted 4.17.14-202.fc28.x86_64 #1
Hardware name: Micro-Star International Co., Ltd. MS-7B54/Z370M MORTAR (MS-7B54), BIOS 1.10 12/28/2017
RIP: 0010:udf_get_pblock_virt15+0x45/0x110 [udf]
RSP: 0018:ffffb5194a87fcd0 EFLAGS: 00010246
RAX: ffff93b5fb4aa300 RBX: ffff93b639f11000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff93b639f11000
RBP: 0000000000000001 R08: 000000000000000b R09: 0000000000000000
R10: ffff93b68b900000 R11: ffff93b73a166800 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffffc099c718 R15: 0000000000000000
FS:  00007f75d2a67700(0000) GS:ffff93b76ecc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffa4 CR3: 0000000820cd2004 CR4: 00000000003606e0
Call Trace:
 udf_read_ptagged+0x26/0x40 [udf]
 udf_fill_super+0x2e2/0x580 [udf]
 ? udf_load_vrs+0x3d0/0x3d0 [udf]
 ? udf_load_vrs+0x3d0/0x3d0 [udf]
 mount_bdev+0x177/0x1b0
 mount_fs+0x3b/0x167
 vfs_kern_mount.part.34+0x54/0x120
 do_mount+0x1fd/0xc50
 ? _cond_resched+0x15/0x30
 ? kmem_cache_alloc_trace+0x166/0x1d0
 ? copy_mount_options+0x28/0x210
 ksys_mount+0xba/0xd0
 __x64_sys_mount+0x21/0x30
 do_syscall_64+0x5b/0x160
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f75d5e6dbfa
RSP: 002b:00007f75d2a662c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f75c4080400 RCX: 00007f75d5e6dbfa
RDX: 00007f75c406f6f0 RSI: 00007f75c4055100 RDI: 00007f75c406f710
RBP: 00007f75d7a0a1a4 R08: 00007f75c40951c0 R09: 0000000000000001
R10: 00000000c0ed0007 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000c0ed0007 R14: 00007f75c406f710 R15: 00007f75c406f6f0
Code: 02 4e 8d 0c c0 41 39 71 1c 0f 82 e1 00 00 00 41 56 41 55 41 54 41 89 cc 55 89 d5 53 4d 8b aa 80 00 00 00 48 89 fb 45 0f b7 49 20 <41> 0f b6 7d a4 4d 89 c8 83 e7 07 40 80 ff 03 0f 84 a0 00 00 00 
RIP: udf_get_pblock_virt15+0x45/0x110 [udf] RSP: ffffb5194a87fcd0
CR2: ffffffffffffffa4

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.

This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and let us know if the bug is still present on the latest kernel.

(Please note: sometimes bugs get mistakenly closed during our mass closing. If you think your bug was closed in error please reopen)

UDF CD/DVD bug verified to exist 4.17.3-200.fc28.x86_64, 
4.19.5-200.fc28.x86_64 does not have the bug.