pty03 from pty in ubuntu_ltp failed on Eoan

Bug #1862114 reported by Po-Hsu Lin on 2020-02-06
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Undecided
Po-Hsu Lin
linux (Ubuntu)
Undecided
Po-Hsu Lin
Xenial
Undecided
Po-Hsu Lin
Bionic
Undecided
Po-Hsu Lin
Disco
Undecided
Po-Hsu Lin
Eoan
Undecided
Po-Hsu Lin

Bug Description

== Justification ==
The test case pty03 from pty in ubuntu_ltp is failing with kernel NULL
pointer dereference:

[ 951.306823] BUG: kernel NULL pointer dereference, address: 0000000000000020
[ 951.309960] #PF: supervisor write access in kernel mode
[ 951.312130] #PF: error_code(0x0002) - not-present page
[ 951.314227] PGD 0 P4D 0
[ 951.315278] Oops: 0002 [#1] SMP PTI
[ 951.316705] CPU: 1 PID: 39102 Comm: pty03 Not tainted 5.4.0-12-generic #15-Ubuntu
[ 951.319737] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 951.322713] RIP: 0010:queue_work_on+0x1b/0x50

[ 951.352494] Call Trace:
[ 951.353244] slip_write_wakeup+0x25/0x30 [slip]
[ 951.354600] tty_wakeup+0x5b/0x70
[ 951.355539] pty_unthrottle+0x19/0x30
[ 951.356560] tty_unthrottle+0x42/0x60
[ 951.357566] __tty_perform_flush+0x87/0x90
[ 951.358768] n_tty_ioctl_helper+0xcc/0x150
[ 951.359955] n_tty_ioctl+0x2d/0x100
[ 951.360930] tty_ioctl+0x3c0/0x8e0
[ 951.361882] ? __switch_to_asm+0x34/0x70
[ 951.363049] ? __switch_to_asm+0x40/0x70
[ 951.364191] ? __switch_to_asm+0x34/0x70
[ 951.365261] ? __switch_to_asm+0x40/0x70
[ 951.366382] ? __switch_to_asm+0x34/0x70
[ 951.367452] ? __switch_to_asm+0x40/0x70
[ 951.368523] ? __switch_to_asm+0x34/0x70
[ 951.369693] ? __switch_to_asm+0x40/0x70
[ 951.370829] ? __switch_to_asm+0x34/0x70
[ 951.371923] ? __switch_to_asm+0x40/0x70
[ 951.372998] ? __switch_to_asm+0x34/0x70
[ 951.374097] ? __switch_to_asm+0x40/0x70
[ 951.375183] ? __switch_to_asm+0x34/0x70
[ 951.376288] ? __switch_to_asm+0x40/0x70
[ 951.377390] ? __switch_to+0x110/0x470
[ 951.378863] do_vfs_ioctl+0x407/0x670
[ 951.380269] ? __schedule+0x2eb/0x740
[ 951.381761] ksys_ioctl+0x67/0x90
[ 951.383076] __x64_sys_ioctl+0x1a/0x20
[ 951.384510] do_syscall_64+0x57/0x190
[ 951.385896] entry_SYSCALL_64_after_hwframe+0x44/0xa9

== Fixes ==
Indicated by the test case, this issue can be fixed by:
* 0ace17d5 (can, slip: Protect tty->disc_data in write_wakeup and
close with RCU)

This patch can be cherry-picked into all of our kernels.

== Test ==
Test kernels could be found here:
https://people.canonical.com/~phlin/kernel/lp-1862114-pty03/

Tested on KVM nodes and the patched kernels work as expected, there
will be no more kernel null pointer dereference issue, and the test
can finish properly.

== Regression potential ==
Low, changes limited to two specific drivers for serial line TTY. This
issue can be reproduced quite easily and the patched kernels show
positive results.

== Original Bug Report ==
startup='Thu Feb 6 02:45:23 2020'
 tst_test.c:1215: INFO: Timeout per run is 0h 05m 00s
 pty03.c:101: INFO: Creating PTY with SLIP line discipline
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Test timeouted, sending SIGKILL!
 Cannot kill test processes!
 Congratulation, likely test hit a kernel bug.
 Exitting uncleanly...
 tag=pty03 stime=1580957123 dur=350 exit=exited stat=1 core=no cu=0 cs=0

This is a new test case, so it's not a regression.

Po-Hsu Lin (cypressyew) on 2020-02-06
tags: added: eoan sru-20200127 ubuntu-ltp
tags: added: 5.3
summary: - pty03 from ubuntu_ltp failed on Eoan
+ pty03 from pty in ubuntu_ltp failed on Eoan
Changed in linux (Ubuntu Eoan):
status: New → Confirmed
description: updated

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1862114

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Po-Hsu Lin (cypressyew) wrote :
Download full text (5.5 KiB)

dmesg output on focal:
[ 951.293174] LTP: starting pty03
[ 951.305037] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
[ 951.305038] CSLIP: code copyright 1989 Regents of the University of California.
[ 951.305039] SLIP linefill/keepalive option.
[ 951.306823] BUG: kernel NULL pointer dereference, address: 0000000000000020
[ 951.309960] #PF: supervisor write access in kernel mode
[ 951.312130] #PF: error_code(0x0002) - not-present page
[ 951.314227] PGD 0 P4D 0
[ 951.315278] Oops: 0002 [#1] SMP PTI
[ 951.316705] CPU: 1 PID: 39102 Comm: pty03 Not tainted 5.4.0-12-generic #15-Ubuntu
[ 951.319737] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 951.322713] RIP: 0010:queue_work_on+0x1b/0x50
[ 951.324175] Code: 75 01 01 e8 b2 05 fe ff 0f 0b e9 c3 fc ff ff 0f 1f 44 00 00 55 48 89 e5 53 9c 58 0f 1f 44 00 00 48 89 c3 fa 66 0f 1f 44 00 00 <f0> 48 0f ba 2a 00 73 13 45 31 c0 48 89 df 57 9d 0f 1f 44 00 00 44
[ 951.329576] RSP: 0018:ffffab9380557cb8 EFLAGS: 00010002
[ 951.331197] RAX: 0000000000000202 RBX: 0000000000000202 RCX: 0000000000000000
[ 951.333358] RDX: 0000000000000020 RSI: ffff8c65fb00ae00 RDI: 0000000000002000
[ 951.335566] RBP: ffffab9380557cc0 R08: 0000000000000001 R09: 0000000000000006
[ 951.337743] R10: ffff8c65f8f4cb00 R11: 0000000000000000 R12: ffff8c65ea61f550
[ 951.339955] R13: 0000000000000000 R14: ffff8c65eda51400 R15: ffff8c65f9002a00
[ 951.342084] FS: 00007f808362a700(0000) GS:ffff8c65fbb00000(0000) knlGS:0000000000000000
[ 951.344442] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 951.346163] CR2: 0000000000000020 CR3: 000000012a64c000 CR4: 00000000000006e0
[ 951.348264] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 951.350422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 951.352494] Call Trace:
[ 951.353244] slip_write_wakeup+0x25/0x30 [slip]
[ 951.354600] tty_wakeup+0x5b/0x70
[ 951.355539] pty_unthrottle+0x19/0x30
[ 951.356560] tty_unthrottle+0x42/0x60
[ 951.357566] __tty_perform_flush+0x87/0x90
[ 951.358768] n_tty_ioctl_helper+0xcc/0x150
[ 951.359955] n_tty_ioctl+0x2d/0x100
[ 951.360930] tty_ioctl+0x3c0/0x8e0
[ 951.361882] ? __switch_to_asm+0x34/0x70
[ 951.363049] ? __switch_to_asm+0x40/0x70
[ 951.364191] ? __switch_to_asm+0x34/0x70
[ 951.365261] ? __switch_to_asm+0x40/0x70
[ 951.366382] ? __switch_to_asm+0x34/0x70
[ 951.367452] ? __switch_to_asm+0x40/0x70
[ 951.368523] ? __switch_to_asm+0x34/0x70
[ 951.369693] ? __switch_to_asm+0x40/0x70
[ 951.370829] ? __switch_to_asm+0x34/0x70
[ 951.371923] ? __switch_to_asm+0x40/0x70
[ 951.372998] ? __switch_to_asm+0x34/0x70
[ 951.374097] ? __switch_to_asm+0x40/0x70
[ 951.375183] ? __switch_to_asm+0x34/0x70
[ 951.376288] ? __switch_to_asm+0x40/0x70
[ 951.377390] ? __switch_to+0x110/0x470
[ 951.378863] do_vfs_ioctl+0x407/0x670
[ 951.380269] ? __schedule+0x2eb/0x740
[ 951.381761] ksys_ioctl+0x67/0x90
[ 951.383076] __x64_sys_ioctl+0x1a/0x20
[ 951.384510] do_syscall_64+0x57/0x190
[ 951.385896] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 951.387655] RIP: 0033:0x7f808374568b
[...

Read more...

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Changed in linux (Ubuntu Bionic):
status: New → Confirmed
Changed in ubuntu-kernel-tests:
status: New → Confirmed
Po-Hsu Lin (cypressyew) on 2020-02-06
Changed in linux (Ubuntu Xenial):
status: New → Confirmed
Po-Hsu Lin (cypressyew) on 2020-02-06
Changed in linux (Ubuntu Bionic):
status: Confirmed → In Progress
assignee: nobody → Po-Hsu Lin (cypressyew)
Changed in ubuntu-kernel-tests:
assignee: nobody → Po-Hsu Lin (cypressyew)
status: Confirmed → In Progress
Po-Hsu Lin (cypressyew) wrote :
description: updated
Changed in linux (Ubuntu):
status: Confirmed → In Progress
assignee: nobody → Po-Hsu Lin (cypressyew)
Changed in linux (Ubuntu Eoan):
assignee: nobody → Po-Hsu Lin (cypressyew)
Changed in linux (Ubuntu Disco):
assignee: nobody → Po-Hsu Lin (cypressyew)
Changed in linux (Ubuntu Xenial):
assignee: nobody → Po-Hsu Lin (cypressyew)
status: Confirmed → In Progress
Changed in linux (Ubuntu Disco):
status: New → In Progress
Changed in linux (Ubuntu Eoan):
status: Confirmed → In Progress
Changed in linux (Ubuntu Xenial):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Bionic):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Disco):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Eoan):
status: In Progress → Fix Committed

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed-xenial'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-xenial

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-bionic

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-eoan' to 'verification-done-eoan'. If the problem still exists, change the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-eoan
Po-Hsu Lin (cypressyew) wrote :

Passed with amd64 node amaura on 4.15.0-89.89

tags: added: verification-done-bionic
removed: verification-needed-bionic

All autopkgtests for the newly accepted linux-bluefield (5.0.0-1010.20) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

fsprotect/unknown (armhf)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/bionic/update_excuses.html#linux-bluefield

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

Po-Hsu Lin (cypressyew) wrote :

Passed with Eoan 5.3.0-42.34
 pty03.c:127: PASS: Did not crash with GSM TTY discipline

 Summary:
 passed 9
 failed 0
 skipped 0
 warnings 0
 tag=pty03 stime=1583154902 dur=186 exit=exited stat=0 core=no cu=19624 cs=7948

tags: added: verification-done-eoan
removed: verification-needed-eoan
Po-Hsu Lin (cypressyew) wrote :

Passed with Xenial 4.4.0-176-generic

tags: added: verification-done-xenial
removed: verification-needed-xenial
Changed in ubuntu-kernel-tests:
status: In Progress → Fix Released
Sean Feole (sfeole) on 2020-03-05
tags: added: sru-20200217
Launchpad Janitor (janitor) wrote :
Download full text (48.0 KiB)

This bug was fixed in the package linux - 5.3.0-42.34

---------------
linux (5.3.0-42.34) eoan; urgency=medium

  * eoan/linux: 5.3.0-42.34 -proposed tracker (LP: #1865111)

  * CVE-2020-2732
    - KVM: nVMX: Don't emulate instructions in guest mode
    - KVM: nVMX: Refactor IO bitmap checks into helper function
    - KVM: nVMX: Check IO instruction VM-exit conditions

linux (5.3.0-41.33) eoan; urgency=medium

  * eoan/linux: 5.3.0-41.33 -proposed tracker (LP: #1863294)

  * CVE-2019-3016
    - x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
    - x86/kvm: Introduce kvm_(un)map_gfn()
    - x86/kvm: Cache gfn to pfn translation
    - x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
    - x86/KVM: Clean up host's steal time structure

  * Reduce s2idle power consumption when ethernet cable is connected on e1000e
    (LP: #1859126)
    - e1000e: Add support for S0ix

  * alsa/sof: let legacy hda driver and sof driver co-exist (LP: #1837828)
    - ASoC: Intel: Skylake: move NHLT header to common directory
    - ALSA: hda: move parts of NHLT code to new module
    - ALSA: hda: intel-nhlt: handle NHLT VENDOR_DEFINED DMIC geometry
    - ASoC: Intel: Skylake: use common NHLT module
    - ALSA: hda/intel: stop probe if DMICS are detected on Skylake+ platforms
    - [Config] Enable SND_HDA_INTEL_DETECT_DMIC

  * USB key cannot be detected by hotplug on Sunix USB Type-A 3.1 Gen 2 card
    [1b21:2142] (LP: #1858988)
    - SAUCE: PCI: Avoid ASMedia XHCI USB PME# from D0 defect

  * ipsec interfaces: fix sending with bpf_redirect() / AF_PACKET sockets
    (LP: #1860969)
    - vti[6]: fix packet tx through bpf_redirect()
    - xfrm interface: fix packet tx through bpf_redirect()

  * peripheral devices on Dell WD19TB cannot be detected after suspend resume
    (LP: #1859407)
    - PCI: irq: Introduce rearm_wake_irq()
    - ACPICA: Return u32 from acpi_dispatch_gpe()
    - ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
    - ACPI: PM: Set s2idle_wakeup earlier and clear it later
    - PM: sleep: Simplify suspend-to-idle control flow
    - ACPI: EC: Rework flushing of pending work

  * Dell XPS 13 (7390) Display Flickering - 19.10 (LP: #1849947)
    - SAUCE: drm/i915: Disable PSR by default on all platforms

  * Root can lift kernel lockdown via USB/IP (LP: #1861238)
    - Revert "UBUNTU: SAUCE: (efi-lockdown) Add a SysRq option to lift kernel
      lockdown"

  * [CML-H] Add intel_thermal_pch driver support Comet Lake -H (LP: #1853219)
    - thermal: intel: intel_pch_thermal: Add Comet Lake (CML) platform support

  * Eoan update: upstream stable patchset 2020-02-07 (LP: #1862429)
    - ARM: dts: meson8: fix the size of the PMU registers
    - clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs
    - dt-bindings: reset: meson8b: fix duplicate reset IDs
    - ARM: dts: imx6q-dhcom: fix rtc compatible
    - clk: Don't try to enable critical clocks if prepare failed
    - ASoC: msm8916-wcd-digital: Reset RX interpolation path after use
    - iio: buffer: align the size of scan bytes to size of the largest element
    - USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx
    - USB: serial: option: Add support for Quec...

Changed in linux (Ubuntu Eoan):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :
Download full text (44.4 KiB)

This bug was fixed in the package linux - 4.15.0-91.92

---------------
linux (4.15.0-91.92) bionic; urgency=medium

  * bionic/linux: 4.15.0-91.92 -proposed tracker (LP: #1865109)

  * CVE-2020-2732
    - KVM: x86: emulate RDPID
    - KVM: nVMX: Don't emulate instructions in guest mode
    - KVM: nVMX: Refactor IO bitmap checks into helper function
    - KVM: nVMX: Check IO instruction VM-exit conditions

linux (4.15.0-90.91) bionic; urgency=medium

  * bionic/linux: 4.15.0-90.91 -proposed tracker (LP: #1864753)

  * dkms artifacts may expire from the pool (LP: #1850958)
    - [Packaging] autoreconstruct -- manage executable debian files
    - [packaging] handle downloads from the librarian better

linux (4.15.0-90.90) bionic; urgency=medium

  * bionic/linux: 4.15.0-90.90 -proposed tracker (LP: #1864753)

  * vm-segv from ubuntu_stress_smoke_test failed on B (LP: #1864063)
    - Revert "apparmor: don't try to replace stale label in ptrace access check"

linux (4.15.0-89.89) bionic; urgency=medium

  * bionic/linux: 4.15.0-89.89 -proposed tracker (LP: #1863350)

  * [SRU][B/OEM-B] Fix multitouch support on some devices (LP: #1862567)
    - HID: core: move the dynamic quirks handling in core
    - HID: quirks: move the list of special devices into a quirk
    - HID: core: move the list of ignored devices in hid-quirks.c
    - HID: core: remove the absolute need of hid_have_special_driver[]

  * [linux] Patch to prevent possible data corruption (LP: #1848739)
    - blk-mq: silence false positive warnings in hctx_unlock()

  * Add bpftool to linux-tools-common (LP: #1774815)
    - tools/bpftool: fix bpftool build with bintutils >= 2.9
    - bpftool: make libbfd optional
    - [Debian] Remove binutils-dev build dependency
    - [Debian] package bpftool in linux-tools-common

  * Root can lift kernel lockdown via USB/IP (LP: #1861238)
    - Revert "UBUNTU: SAUCE: (efi-lockdown) Add a SysRq option to lift kernel
      lockdown"

  * [Bionic] i915 incomplete fix for CVE-2019-14615 (LP: #1862840) //
    CVE-2020-8832
    - drm/i915: Use same test for eviction and submitting kernel context
    - drm/i915: Define an engine class enum for the uABI
    - drm/i915: Force the switch to the i915->kernel_context
    - drm/i915: Move GT powersaving init to i915_gem_init()
    - drm/i915: Move intel_init_clock_gating() to i915_gem_init()
    - drm/i915: Inline intel_modeset_gem_init()
    - drm/i915: Mark the context state as dirty/written
    - drm/i915: Record the default hw state after reset upon load

  * Bionic update: upstream stable patchset 2020-02-12 (LP: #1863019)
    - xfs: Sanity check flags of Q_XQUOTARM call
    - mfd: intel-lpss: Add default I2C device properties for Gemini Lake
    - powerpc/archrandom: fix arch_get_random_seed_int()
    - tipc: fix wrong timeout input for tipc_wait_for_cond()
    - mt7601u: fix bbp version check in mt7601u_wait_bbp_ready
    - crypto: sun4i-ss - fix big endian issues
    - drm/sti: do not remove the drm_bridge that was never added
    - drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()
    - ALSA: hda: fix unused variable warning
    - apparmor: don't try to replace stale label in ptrace access chec...

Changed in linux (Ubuntu Bionic):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 4.4.0-176.206

---------------
linux (4.4.0-176.206) xenial; urgency=medium

  * xenial/linux: 4.4.0-176.206 -proposed tracker (LP: #1865106)

  * CVE-2020-2732
    - x86/vdso: Use RDPID in preference to LSL when available
    - KVM: x86: emulate RDPID
    - KVM: nVMX: Don't emulate instructions in guest mode
    - KVM: nVMX: Refactor IO bitmap checks into helper function
    - KVM: nVMX: Check IO instruction VM-exit conditions

linux (4.4.0-175.205) xenial; urgency=medium

  * xenial/linux: 4.4.0-175.205 -proposed tracker (LP: #1863338)

  * run_afpackettests in ubuntu_kernel_selftests failed with "./in_netns.sh:
    Permission denied" (LP: #1861973)
    - [Debian] autoreconstruct - add resoration of execute permissions

  * pty03 from pty in ubuntu_ltp failed on Eoan (LP: #1862114)
    - can, slip: Protect tty->disc_data in write_wakeup and close with RCU

 -- Khalid Elmously <email address hidden> Thu, 27 Feb 2020 23:41:44 -0500

Changed in linux (Ubuntu Xenial):
status: Fix Committed → Fix Released

All autopkgtests for the newly accepted linux-bluefield (5.0.0-1010.20) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

fsprotect/unknown (armhf)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/bionic/update_excuses.html#linux-bluefield

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

Po-Hsu Lin (cypressyew) on 2020-03-30
Changed in linux (Ubuntu):
status: In Progress → Fix Released
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers