[Bug 2236] New: ssh-agent: fix unintended UNIX-domain socket removal

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2236

            Bug ID: 2236
           Summary: ssh-agent: fix unintended UNIX-domain socket removal
           Product: Portable OpenSSH
           Version: 6.6p1
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: ssh-agent
          Assignee: unassigned-bugs at mindrot.org
          Reporter: ldv at altlinux.org

Created attachment 2432
  --> https://bugzilla.mindrot.org/attachment.cgi?id=2432&action=edit
proposed fix

ssh-agent sometimes forks child processes.  For example,
ask_permission() may fork a child process to execute an askpass
program.
If it fails to execute, the child process exits using fatal(), which in
turn calls cleanup_exit(), and the latter calls cleanup_socket().  As
result, an error in child process causes unintended UNIX-domain socket
removal.  The fix is to record pid of the process that is responsible
for socket cleanup, and skip this cleanup for other processes.

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