[Bug 2505515] nss_sss: getpwnam results in a -1 fd being passed to fstat

https://bugzilla.redhat.com/show_bug.cgi?id=2505515

Florian Weimer  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail],
                   |                            |[e-mail]
                   |                            |raproject.org
          Component|glibc                       |sssd
           Assignee|[e-mail]         |[e-mail]
                   |                            |raproject.org
            Summary|getpwnam results in a -1 fd |nss_sss: getpwnam results
                   |being passed to fstat       |in a -1 fd being passed to
                   |                            |fstat

--- Comment #1 from Florian Weimer  ---
According to strace -k, this call comes from nss_sss:

fstat(-1, 0x7ffcda2c4620)               = -1 EBADF (Bad file descriptor)
> /usr/lib64/libc.so.6(__fstat64+0xb) [0xe462b]
> /usr/lib64/libnss_sss.so.2(sss_cli_check_socket.constprop.0+0x5ac) [0x17dc]
> /usr/lib64/libnss_sss.so.2(sss_nss_make_request+0x5f) [0x248f]
> /usr/lib64/libnss_sss.so.2(_nss_sss_getpwnam_r+0x156) [0x47b6]
> /usr/lib64/libc.so.6(getpwnam_r@@GLIBC_2.2.5+0xd4) [0x129604]
> /usr/lib64/libc.so.6(getpwnam+0x9d) [0x12945d]
> /usr/bin/getent(passwd_keys+0xa1) [0x2b11]
> /usr/bin/getent(main+0xe2) [0x1062]
> /usr/lib64/libc.so.6(__libc_start_call_main+0x74) [0x35b4]
> /usr/lib64/libc.so.6(__libc_start_main@@GLIBC_2.34+0x87) [0x3667]
> /usr/bin/getent(_start+0x24) [0x1134]