[Bug 1926298] Re: Segfault added in the recent changes

Brian Murray 1926298 at bugs.launchpad.net
Tue Apr 27 21:41:01 UTC 2021

** Also affects: update-notifier (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

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  Segfault added in the recent changes

Status in update-notifier package in Ubuntu:
Status in update-notifier source package in Hirsute:

Bug description:
  The issue is new using https://code.launchpad.net/~dbungert/update-
  notifier/+git/update-notifier/+merge/397367 , the previous revision
  didn't have the issue

  * Create a file 'bug'

  'Name: bug
  Priority: Low
  Command: "/bin/true"
  DisplayIf: /bin/true
  Description: update notifier bug'

  and copy it to /var/lib/update-notifier/user.d

  ->  update-notifier segfaults

  (gdb) bt
  #0  0x00007ffff718c769 in __GI___libc_free (mem=0x5550000aa7f9) at malloc.c:3288
  #1  0x00007ffff7365215 in g_strfreev (str_array=<optimized out>) at ../../../glib/gstrfuncs.c:2553
  #2  g_strfreev (str_array=0x5555555d9e00) at ../../../glib/gstrfuncs.c:2546
  #3  0x000055555555dd2d in hook_command_exists (cmd=0x555555702600 "\"/usr/bin/eog\"") at hooks.c:137
  #4  0x000055555555fd6e in is_hook_relevant (hook_file=0x555555829e7b "apt-file.update-notifier")
      at hooks.c:717
  #5  0x000055555555ffb1 in check_update_hooks (ta=0x5555556c9a20) at hooks.c:781
  #6  0x0000555555560715 in hook_tray_icon_init (ta=0x5555556c9a20) at hooks.c:969
  #7  0x000055555555cd77 in tray_icons_init (un=0x55555562c3e0, 

  It seems likely to be the error on top of the weekly report for hirsute but that's missing a stacktrace

  One comment in addition on the change there, was the env split + iterate over pathdirs basically a re-implementation of https://developer.gnome.org/glib/stable/glib-Miscellaneous-Utility-Functions.html#g-find-program-in-path ? If there is particular reason to do that I would recommend just using the glib function instead (which might also fix the issue as a side effect, I didn't check)

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