[Bug 1229739] Re: pcscd daemon crashes on reader/token insertion
Dmitry Shachnev
mitya57 at gmail.com
Sun Sep 29 10:03:24 UTC 2013
This bug was fixed in the package ccid - 1.4.12-1
Sponsored for Kirill Kotyagin (k-kotyagin)
---------------
ccid (1.4.12-1) unstable; urgency=low
* New upstream release
* debian/control: upgrade Build-Depends: libpcsclite-dev to 1.8.3 minimum
* debian/control: update Vcs-Svn: and Vcs-Browser: and use
anonscm.debian.org. Fixes lintian warning vcs-field-not-canonical
-- Ludovic Rousseau <rousseau at debian.org> Tue, 13 Aug 2013 00:02:07
+0200
** Changed in: ccid (Ubuntu)
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of Ubuntu
Sponsors Team, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/1229739
Title:
pcscd daemon crashes on reader/token insertion
Status in “ccid” package in Ubuntu:
Fix Released
Bug description:
Steps to reproduce:
1. Start pcscd manually: "sudo pcscd -fad"
2. Plug a USB CCID compliant device supported by libccid into USB port;
3. Unplug the device from USB port;
4. Plug the device to USB port again;
pcscd crashes.
Description:
pcscd dynamically loads libccid when a USB CCID reader appears.
libccid uses libusb to communicate with USB devices. It initializes
libusb by calling libusb_init function. This function creates a
thread to monitor usb events. Once the last USB CCID device gets
disconnected, pcscd unloads libccid which in turn unloads libusb.
However, as libccid does not call libusb_exit on de-initialization,
the event monitoring threads remains active. The event monitoring
thread resides in "poll" system call until USB event occurred(e.g.
reader connected). Then, It returns from poll to a memory which has
already been unmapped due to libccid/libusb unloading. The latter
leads to a crashing of pcscd.
The source code of libccid contains calls to libusb_exit. However, for
some reason those are commented. Uncommenting them solves the problem.
Attached is a patch to uncomment calls to libusb_exit.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: libccid 1.4.11-1
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
Uname: Linux 3.11.0-7-generic x86_64
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
Date: Tue Sep 24 17:03:18 2013
InstallationDate: Installed on 2013-09-12 (12 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130912)
MarkForUpload: True
SourcePackage: ccid
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ccid/+bug/1229739/+subscriptions
More information about the Ubuntu-sponsors
mailing list