fprintd crashed with SIGSEGV in log_v() from usbi_log() from libusb_unref_device()

[ssfrolov]

+

ProblemType: Crash
DistroRelease: Ubuntu 22.04
Package: fprintd 1.94.1-1
ProcVersionSignature: Ubuntu 5.15.0-18.18-generic 5.15.12
Uname: Linux 5.15.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu76
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Mon Feb 7 21:58:32 2022
ExecutablePath: /usr/libexec/fprintd
InstallationDate: Installed on 2021-12-21 (50 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
ProcCmdline: /usr/libexec/fprintd
ProcEnviron:
 LANG=ru_RU.UTF-8
 PATH=(custom, no user)
SegvAnalysis:
 Segfault happened at: 0x7fd8a7a3855f: call *%rax
 PC (0x7fd8a7a3855f) ok
 source "*%rax" (0xd86d54af5d1db0f9) not located in a known VMA region (needed readable region)!
 destination "(%rsp)" (0x7ffdceacc590) ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: fprintd
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
 libusb_unref_device () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libgusb.so.2
 g_object_unref () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: fprintd crashed with SIGSEGV in libusb_unref_device()
UpgradeStatus: Upgraded to jammy on 2022-01-16 (23 days ago)
UserGroups: N/A
separator:

[Apport retracing service (apport)]

StacktraceTop:
 log_v (ctx=0x562f76815000, level=LIBUSB_LOG_LEVEL_DEBUG, function=<optimized out>, format=0x7fd8a7a4893f "destroy device %d.%d", args=args@entry=0x7ffdceacca00) at ../../libusb/core.c:2653
 usbi_log (ctx=<optimized out>, level=level@entry=LIBUSB_LOG_LEVEL_DEBUG, function=function@entry=0x7fd8a7a4ada0 <__func__.24.lto_priv.0> "libusb_unref_device", format=format@entry=0x7fd8a7a4893f "destroy device %d.%d") at ../../libusb/core.c:2663
 libusb_unref_device (dev=0x562f7681e480) at ../../libusb/core.c:1190
 libusb_unref_device (dev=0x562f7681e480) at ../../libusb/core.c:1179
 g_usb_device_dispose (object=0x562f7682d560) at ../gusb/gusb-device.c:87

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

This appears to match most of the crashes reported against fprintd:

https://errors.ubuntu.com/?release=Ubuntu%2022.04&package=fprintd&period=month

We just can't link them because of missing symbols.

[Sebastien Bacher (seb128)]

Trevinho pointed out we might want https://github.com/libusb/libusb/pull/1073 there