[Bug 1936236] Re: Repeated segfault in udev_rule_line_free

[Nick Rosbrook]

Sorry this was not looked at sooner. Please re-open if still an issue.

** Changed in: systemd (Ubuntu)
       Status: New => Invalid

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Title:
  Repeated segfault in udev_rule_line_free

Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Ubuntu version: 20.04 focal (Distro: Linux Mint 20.1 Ulyssa)

  systemd version: 245.4-4ubuntu3.7

  What happened: systemd-udevd underwent repeated segfaults and
  coredumps for unknown reasons. Loop stopped by forcing restart of
  udevd. Coredump information:

             PID: 381 (systemd-udevd)
             UID: 0 (root)
             GID: 0 (root)
          Signal: 11 (SEGV)
       Timestamp: Wed 2021-07-14 00:12:29 EDT (9h ago)
    Command Line: /lib/systemd/systemd-udevd
      Executable: /lib/systemd/systemd-udevd
   Control Group: /system.slice/systemd-udevd.service
            Unit: systemd-udevd.service
           Slice: system.slice
         Boot ID: abaa4a5b0c6641cda2c58d7c307cfc38
      Machine ID: b76cc7b1bbdc489e93909d2043031de8
        Hostname: Ampere-Limux
         Storage: /var/lib/systemd/coredump/core.systemd-udevd.0.abaa4a5b0c6641cda2c58d7c307cfc38.381.1626235949000000000000.lz4
         Message: Process 381 (systemd-udevd) of user 0 dumped core.
                  
                  Stack trace of thread 381:
  #0  0x00005635cdf522eb in udev_rule_line_free (rule_line=0x5635cec9db20) at ../src/udev/udev-rules.c:270
  #1  0x00005635cdf53d0c in udev_rule_file_free (rule_file=0x5635cecb2760) at ../src/udev/udev-rules.c:289
  #2  udev_rules_free (rules=0x5635cea0ad10) at ../src/udev/udev-rules.c:302
  #3  0x00005635cdf60875 in manager_free (manager=manager at entry=0x5635ce9fde60) at ../src/udev/udevd.c:306
  #4  0x00005635cdf63e34 in manager_freep (p=<synthetic pointer>) at ../src/udev/udevd.c:314
  #5  run (argc=<optimized out>, argv=<optimized out>) at ../src/udev/udevd.c:1703
  #6  0x00005635cdf0721a in main (argc=<optimized out>, argv=<optimized out>) at ../src/udev/udevd.c:1817

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