[Bug 1927192] Re: gdb ftbfs on armhf, testsuite timeouts

[Launchpad Bug Tracker]

This bug was fixed in the package glibc - 2.33-0ubuntu9

---------------
glibc (2.33-0ubuntu9) impish; urgency=medium

  * debian/patches/git-updates.diff: update from upstream stable branch
    - CVE-2021-33574: The mq_notify function has a potential use-after-free
      issue when using a notification type of SIGEV_THREAD and a thread
      attribute with a non-default affinity mask.
    - [15271] dlfcn function failure after dlmopen terminates process.
    - [27646] gethostbyname and NSS crashes after dlmopen.
    - x86_64: Remove unneeded static PIE check for undefined weak diagnostic.

 -- Matthias Klose <doko at ubuntu.com>  Tue, 13 Jul 2021 08:26:17 +0200

** Changed in: glibc (Ubuntu Impish)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-33574

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https://bugs.launchpad.net/bugs/1927192

Title:
  gdb ftbfs on armhf, testsuite timeouts

Status in gdb:
  Incomplete
Status in gdb package in Ubuntu:
  Fix Released
Status in glibc package in Ubuntu:
  Fix Released
Status in gdb source package in Focal:
  New
Status in glibc source package in Focal:
  Opinion
Status in gdb source package in Groovy:
  New
Status in glibc source package in Groovy:
  Opinion
Status in gdb source package in Hirsute:
  New
Status in glibc source package in Hirsute:
  Opinion
Status in gdb source package in Impish:
  Fix Released
Status in glibc source package in Impish:
  Fix Released

Bug description:
  [Impact]

  * Gdb can't set some breakpoints in ld.so on armhf when libc6-dbg is
  not installed.

  [Test Plan]

  * Check that ld.so is not stripped on armhf:
  $  /lib/*/ld-2.31.so
  libc6/lib/arm-linux-gnueabihf/ld-2.31.so: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, BuildID[sha1]=e20a43bff0c4d2aa7f508c93eadad973ea0c0af9, with debug_info, not stripped

  * Check that ld.so is stripped on amd64:

  $ file /lib/x86_64-linux-gnu/ld-2.31.so
  /lib/x86_64-linux-gnu/ld-2.31.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=ea85fcb25ee4c4c9e7b180924ab4a44257a9547a, stripped

  [Where problems could occur]

  * The fix is not stripping ld.so on armhf. Not stripping it comes with
  a notable increase in file size and it may be performance critical
  109K stripped vs 1.3M unstripped. Accidentally ld.so could be left
  unstripped on other architectures, but the test plan covers checking
  that, at least on amd64. Other than those not stripping ld.so should
  not cause any issue.

  [Original Bug Text]

  see https://launchpad.net/ubuntu/+source/gdb/10.2-0ubuntu3

  $ zcat buildlog_ubuntu-impish-armhf.gdb_10.2-0ubuntu3_BUILDING.txt.gz | fgrep '(timeout)'|wc -l
  10451

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