Bug#1019426: openssh-client: ssh-agent can leave zombie ssh-pkcs11-help

Package: openssh-client
Version: 1:9.0p1-1+b1
Severity: normal
X-Debbugs-Cc: [email protected]

Dear Maintainer,

Sometimes, while leaving my Yubikey plugged in during suspend, my laptop wakes up with a running ssh-agent (spawned from gnome-keyring-daemon) itself having a zombie ssh-pkcs11-help.

Looks like it's due to ssh-pkcs11-help segfaulting (another issue probably):

Sep 09 08:31:01 seraph kernel: ssh-pkcs11-help[377564]: segfault at 7ffd01d23d90 ip 00007f254d06b037 sp 00007ffd01d23d90 error 6 in libc.so.6[7f254d028000+16e000]

-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.18.0-4-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_USER, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages openssh-client depends on:
ii  adduser           3.128
ii  dpkg              1.21.9
ii  libc6             2.34-7
ii  libedit2          3.1-20210910-1
ii  libfido2-1        1.11.0-1+b1
ii  libgssapi-krb5-2  1.20-1
ii  libselinux1       3.4-1+b1
ii  libssl3           3.0.5-2
ii  passwd            1:4.11.1+dfsg1-2
ii  zlib1g            1:1.2.11.dfsg-4.1

Versions of packages openssh-client recommends:
ii  xauth  1:1.1.1-1

Versions of packages openssh-client suggests:
pn  keychain      <none>
pn  libpam-ssh    <none>
pn  monkeysphere  <none>
ii  ssh-askpass   1:1.2.4.1-15

-- no debconf information