apt search coredumping

[netmonk]

[Impact]
Search sometimes crashes if no translated description is available, as the translated description object was used without a check as to whether it exists.

[Test case]
No reproducer available at the moment.

[Where problems could occur]
In search command only, and only when looking at descriptions

[Original bug report]
root@citoyx:/var/crash# apt search jdk
Sorting... Done
Segmentation fault (core dumped)

May 11 12:34:25 citoyx kernel: [ 1354.337907] apt[10418]: segfault at 7f67292dcfc0 ip 00007f6309ce4997 sp 00007ffdab880930 error 4 in libapt-pkg.so.6.0.0[7f6309bb5000+147000]
May 11 12:34:25 citoyx kernel: [ 1354.337916] Code: 48 8b 45 18 48 8b 04 d0 48 83 c4 08 5b 5d c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 fd 53 48 89 f3 48 83 ec 08 48 8b 06 48 8b 4e 08 <8b> 10 48 8d 04 d5 00 00 00 00 48 29 d0 48 8b 51 60 48 8d 04 c2 0f

root@citoyx:/var/crash# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"

apt search is coredumping
While apt install/upgrade/update is running fine

crash file in attachment.

[Julian Andres Klode (juliank)]

Marking this as private for now. No crash file attached yet

[netmonk (netmonk)]

(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/apt search jdk
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Detaching after fork from child process 25180]
[Detaching after fork from child process 25181]
Sorting... Done
Full Text Search... 50%
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7ec9997 in pkgRecords::Lookup(pkgCache::DescFileIterator const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.6.0

[Julian Andres Klode (juliank)]

FWIW, pointing apport-bug at the crash file makes it create a proper bug report with backtraces and stuff.

[netmonk (netmonk)]

Well, beside telling me it uploaded something i dont see how i can link apport-bug to this ticket.

[Julian Andres Klode (juliank)]

So

> the "oops id" can be found in /var/crash/$mycrash.uploaded

so I guess paste that and we can then lookup the crash on the error tracker

[Julian Andres Klode (juliank)]

I believe that https://salsa.debian.org/apt-team/apt/-/merge_requests/120 fixes this.

[Julian Andres Klode (juliank)]

(I also believe this is the same issue as https://errors.ubuntu.com/bucket/?id=/usr/bin/apt%3A11%3Aoperator%3ApkgCache%3A%3ADescFileIterator%3A%3AFile%3ApkgRecords%3A%3ALookup%3AFullTextSearch%3ADoSearch)

[Julian Andres Klode (juliank)]

Fixed in 2.1.3, will look into adding a test case and backporting this to 2.0 shortly.

[dragonhahney (dragonhahney)]

Sir,
My has been crushed about over one month with the google, I think... CA is
cannot reboot... Thank you...

On Mon, May 18, 2020, 4:35 PM Julian Andres Klode <
<email address hidden>> wrote:

> Fixed in 2.1.3, will look into adding a test case and backporting this
> to 2.0 shortly.
>
> ** Changed in: apt (Ubuntu)
> Status: New => Fix Committed
>
> ** Also affects: apt (Ubuntu Bionic)
> Importance: Undecided
> Status: New
>
> ** Also affects: apt (Ubuntu Focal)
> Importance: Undecided
> Status: New
>
> ** No longer affects: apt (Ubuntu Bionic)
>
> ** Changed in: apt (Ubuntu Focal)
> Status: New => Triaged
>
> --
> You received this bug notification because you are subscribed to apt in
> Ubuntu.
> Matching subscriptions: dragonhahney
> https://bugs.launchpad.net/bugs/1877987
>
> Title:
> apt search coredumping
>
> Status in apt package in Ubuntu:
> Fix Committed
> Status in apt source package in Focal:
> Triaged
>
> Bug description:
> root@citoyx:/var/crash# apt search jdk
> Sorting... Done
> Segmentation fault (core dumped)
>
> May 11 12:34:25 citoyx kernel: [ 1354.337907] apt[10418]: segfault at
> 7f67292dcfc0 ip 00007f6309ce4997 sp 00007ffdab880930 error 4 in
> libapt-pkg.so.6.0.0[7f6309bb5000+147000]
> May 11 12:34:25 citoyx kernel: [ 1354.337916] Code: 48 8b 45 18 48 8b 04
> d0 48 83 c4 08 5b 5d c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 fd 53 48 89 f3 48
> 83 ec 08 48 8b 06 48 8b 4e 08 <8b> 10 48 8d 04 d5 00 00 00 00 48 29 d0 48
> 8b 51 60 48 8d 04 c2 0f
>
>
> root@citoyx:/var/crash# cat /etc/lsb-release
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=20.04
> DISTRIB_CODENAME=focal
> DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"
>
>
> apt search is coredumping
> While apt install/upgrade/update is running fine
>
> crash file in attachment.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1877987/+subscriptions
>

[netmonk (netmonk)]

how can i update my apt package on my focal desktop to get the latest version ?

[Launchpad Janitor (janitor)]

This bug was fixed in the package apt - 2.1.6

---------------
apt (2.1.6) unstable; urgency=medium

  [ David Kalnischkies ]
  * Fix small memory leak in MethodConfig
  * Consider protected packages for removal if they are marked as such
  * Consider if a fix is successful before claiming it is
  * Allow 20 instead of 10 loops for pkgProblemResolver
  * Deal with duplicates in the solution space of a dep

 -- Julian Andres Klode <email address hidden> Wed, 03 Jun 2020 18:25:22 +0200

[Pavel Bludov (pbludov)]

This bug affects apt 2.0.3

$ apt search openjdk
Sorting... Done
Segmentation fault (core dumped)

$ apt --version
apt 2.0.3 (amd64)

[Julian Andres Klode (juliank)]

Does anyone have a reproducer in focal?

[Łukasz Zemczak (sil2100)]

Hello netmonk, or anyone else affected,

Accepted apt into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/apt/2.0.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Ubuntu SRU Bot (ubuntu-sru-bot)]

All autopkgtests for the newly accepted apt (2.0.5) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

reprotest/0.7.14 (s390x, ppc64el)

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/focal/update_excuses.html#apt

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

Thank you!

[Julian Andres Klode (juliank)]

Can't exactly verify as we did not get another reproducer, but marking it as verified anyway

[Chris Halse Rogers (raof)]

apt 2.0.5 hasn't appeared in the errors.ubuntu.com crash bin, so that seems a reasonable assertion.

[Chris Halse Rogers (raof)]

The verification of the Stable Release Update for apt has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package apt - 2.0.5

---------------
apt (2.0.5) focal; urgency=medium

  [ Julian Andres Klode ]
  * private-search: Only use V.TranslatedDescription() if good (LP: #1877987)
  * Implement update --error-on=any (Closes: #594813) (LP: #1693900)
  * Include all translations when building the cache (LP: #1907850)
  * Add basic support for the Protected field, and do not require force-loopbreak
    on Protected/Important packages (Closes: #983014) (LP: #1916725)
  * Protect currently running kernel at run-time (LP: #1615381)
  * Make ADDARG{,C}() macros expand to single statements
  * Default Acquire::AllowReleaseInfoChange::Suite to "true" (Closes: #931566)
    (LP: #1918907)

  [ David Kalnischkies ]
  * Fix incorrect base64 encoding due to int promotion (LP: #1916050)
  * Harden test for no new acquires after transaction abort (Closes: #984966)
    (LP: #1918920)

 -- Julian Andres Klode <email address hidden> Fri, 12 Mar 2021 12:47:30 +0100