This bug was fixed in the package libfprint -
1:1.90.2+tod1-0ubuntu1~20.04.4
---------------
libfprint (1:1.90.2+tod1-0ubuntu1~20.04.4) focal; urgency=medium
* debian/patches:
- image-device: Delay completion until deactivation (LP: #1897613)
- Support more synaptics devices PIDs (LP: #1905593)
- Ensure we properly handle references of prints galleries (LP: #1908107)
libfprint (1:1.90.2+tod1-0ubuntu1~20.04.3) focal; urgency=medium
* debian/patches (upstream cherry-picks):
- Properly handle aes3k devices, resubmitting commands.
This also needs proper commands cancellation (LP: #1897613)
- Add support for new Synaptics devices IDs (LP: #1905593)
- Fix vfs301 verification using device pointer on callbacks (LP: #1905597)
- Ensure we do not waste power for unsupported devices (LP: #1905603)
- Add identification support to synaptics driver.
It allows to unlock / log-in with any finger. (LP: #1905600)
-- Marco Trevisan (Treviño) <[email protected]> Mon, 14 Dec 2020
19:28:09 +0100
** Changed in: libfprint (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1908107
Title:
libfprint may cause fprintd to crash on identification
Status in libfprint package in Ubuntu:
Fix Released
Status in libfprint source package in Focal:
Fix Released
Status in libfprint source package in Groovy:
Fix Released
Bug description:
[ Impact ]
When identification is used we may get a crash or a critical error
when parsing the prints gallery data
[ Test case ]
Run:
- fprintd-verify any
With a fingerprint reader supporting identification.
Fprintd should work as expected and journalctl -u fprintd.service should not
show any critical error handling GObject's
[ Regression potential ]
Fingerprint structure data could not be free'd, causing a memory leak
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