Control: tag -1 confirmed On Fri, Mar 18, 2016 at 09:23:40PM +0100, Alfredo Finelli wrote: > Package: apt > Version: 1.2.7 > Severity: normal > > The /usr/bin/apt command causes a segmentation fault by list/search/show if > the > user running it does not have the necessary permissions to read the > sources.list files. The bug can be reproduced in the following way: > > # ls -l /etc/apt/sources.list.d/ > total 4 > -rw-r--r-- 1 root root 343 Jan 21 11:33 all.sources > # chmod 0640 /etc/apt/sources.list.d/all.sources > # ls -l /etc/apt/sources.list.d/ > total 4 > -rw-r----- 1 root root 343 Jan 21 11:33 all.sources > > Then as a normal non root user: > > $ apt search linux-image-amd64 > Segmentation fault > $ apt show linux-image-amd64 > Segmentation fault > $ > > While in that same setting the apt-cache command is able to display an error > message with no segfault. > > $ apt-cache search linux-image-amd64 > E: Could not open file /etc/apt/sources.list.d/all.sources - open (13: > Permission denied) > E: Malformed stanza 1 in source list /etc/apt/sources.list.d/all.sources > (type) > E: The list of sources could not be read. > W: You may want to run apt-get update to correct these problems > E: The package cache file is corrupted > $ > > Thanks for working on apt, best regards.
Thanks for your bug report. I'm working on this in my bugfix/segfault branch at: https://github.com/julian-klode/apt/compare/master...julian-klode:bugfix/segfault?expand=1 It turns out that this bug is deep within APT and it might take a few hours of work tomorrow to fix this :( - The fixes so far cause the tests to segfault AFAICT... -- Debian Developer - deb.li/jak | jak-linux.org - free software dev When replying, only quote what is necessary, and write each reply directly below the part(s) it pertains to (`inline'). Thank you.

