diff options
| author | Eduardo Chappa <chappa@washington.edu> | 2019-07-11 22:44:06 -0600 |
|---|---|---|
| committer | Eduardo Chappa <chappa@washington.edu> | 2019-07-11 22:44:06 -0600 |
| commit | 444474440a73e5710dde73d87d2587bdbcc68f52 (patch) | |
| tree | d65c9e10a449848503783d7901b7a23852228cb3 /imap/src/c-client/nntp.c | |
| parent | 39a1ab075bb04475114ada78146e9cb35b17e63b (diff) | |
| download | alpine-444474440a73e5710dde73d87d2587bdbcc68f52.tar.xz | |
* Alpine crashes when trying to post an article in a newsgroup and the
connection is closed while the post is being composed, but later the
post is attempted to be sent. In some instances, the stream may be
open and closed during this time, but Alpine does not realize the
connection was closed and attempts the post without a netstream,
producing a crash.
Diffstat (limited to 'imap/src/c-client/nntp.c')
| -rw-r--r-- | imap/src/c-client/nntp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/imap/src/c-client/nntp.c b/imap/src/c-client/nntp.c index 53b51454..67a5d422 100644 --- a/imap/src/c-client/nntp.c +++ b/imap/src/c-client/nntp.c @@ -1,5 +1,6 @@ /* ======================================================================== * Copyright 2008-2011 Mark Crispin + * Copyright 2019 Eduardo Chappa * ======================================================================== */ @@ -9,7 +10,7 @@ * Author: Mark Crispin * * Date: 10 February 1992 - * Last Edited: 8 April 2011 + * Last Edited: July 10, 2019. * * Previous versions of this file were: * @@ -1806,6 +1807,11 @@ SENDSTREAM *nntp_open_full (NETDRIVER *dv,char **hostlist,char *service, else if (extok) nntp_extensions (stream,(mb.secflag ? AU_SECURE : NIL) | (mb.authuser[0] ? AU_AUTHUSER : NIL)); } + /* check one last time that we have a netstream before returning + * a stream that does not have it. Otherwise, nntp_mail will fail + * trying to dereference a null pointer. + */ + if(stream && !stream->netstream) stream = nntp_close(stream); return stream; } |