|Summary:||Verify fails if >2 fingers registered for one user|
|Product:||libfprint||Reporter:||Francis Herne <mail>|
|Status:||RESOLVED FIXED||QA Contact:|
|i915 platform:||i915 features:|
Description Francis Herne 2014-02-17 18:26:57 UTC
If a single user registers more than two fingers via fprintd-enroll, all subsequent verification attempts for that user (via fprintd-verify or pam_fprintd) fail. Running fprintd-verify in a terminal gives the following output - the crash occurs immediately after the list of fingers is printed and before the user can actually swipe their finger: user@host$ fprintd-verify Using device /net/reactivated/Fprint/Device/0 Listing enrolled fingers: - #0: left-thumb - #1: right-index-finger - #2: left-index-finger process [PID here]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "_dbus_check_is_valid_utf8 (*string_p)" failed in file dbus-message.c line 2675. This is normally a bug in some application using the D-Bus library. D-Bus not built with -rdynamic so unable to print a backtrace Aborted (core dumped) Using libfprint/fprintd 0.5.1, dbus 1.8.0 on ArchLinux x86_64, with an AuthenTec, Inc. AES2810. I have no other fingerprint-capable computers or devices to test on.
Comment 1 Francis Herne 2014-02-17 18:31:54 UTC
I forgot to mention that deleting /var/lib/fprint/[user] (and then re-enrolling less than three fingers) resolves the immediate problem.
Comment 2 Bastien Nocera 2014-02-18 17:34:24 UTC
commit 73ed60a60d650cb60dbc429a5dbd743c2ed80791 Author: Bastien Nocera <firstname.lastname@example.org> Date: Tue Feb 18 18:32:48 2014 +0100 tests: Fix possible crash in fprintd-verify https://bugs.freedesktop.org/show_bug.cgi?id=75111