davfs2 segfaults on Ubuntu 24.04

[Anatoli]

davfs2 segfaults on Ubuntu 24.04 whenever trying to access remote files via Ubuntu Files app (nautilus).

Multiple people affected: https://askubuntu.com/questions/1516340/davfs2-segfault-when-browsing-with-nautilus-and-ubuntu-24-04.

Similar issue was happening on other systems: https://savannah.nongnu.org/bugs/?63364. Looks like the problem is with libneon and/or davfs2-1.7.0 (1.6.1 apparently has no issues, but can't confirm it as it's not available on 24.04).

I migrated a week ago from 22.04 to 24.04, on 22.04 everything was working fine.

From dmesg:
mount.davfs[15034]: segfault at 0 ip 00007788ff1e1055 sp 00007fff36714a50 error 4 in libneon.so.27.6.0[7788ff1db000+18000] likely on CPU 2 (core 2, socket 0)

Ubuntu 24.04 6.8.0-35-generic #35-Ubuntu SMP PREEMPT_DYNAMIC x86_64 GNU/Linux

lsb_release -rd:
No LSB modules are available.
Description: Ubuntu 24.04 LTS
Release: 24.04

davfs2:
  Installed: 1.7.0-1

libneon27t64:
  Installed: 0.33.0-1.1build3

[Anatoli (anatoli)]

Just to clarify: if I mount a davfs2 mountpoint from cli with `mount /dir` and then access the files also from cli, there are no issues. The segfault happens when accessing the mounted folder with nautilus.