Reilly Brogan
b2c8372d32
nss_pack_group_record() left gr_passwd pointing at PASSWORD_SEE_SHADOW, which is part of the module's read-only .rodata. That breaks callers that modify the returned group before freeing it, in particular pam_modutil_cleanup_group(), which zeroes gr_passwd when the PAM handle is torn down and then segfaults on read-only memory. Copy the placeholder into the caller-provided buffer, as nss_pack_user_record() already does. (cherry picked from commit c7a8e871de3427cf654d9a608dc58663874197bb)
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