Merged revisions 288006 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.6.2

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  r288006 | bbryant | 2010-09-21 15:46:20 -0400 (Tue, 21 Sep 2010) | 14 lines

  Merged revisions 288005 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.4

  ........
    r288005 | bbryant | 2010-09-21 15:43:46 -0400 (Tue, 21 Sep 2010) | 8 lines

    Add a check to fix a rare segmentation fault you'd get if ast_frdup couldn't allocate
    memory on the first frame being queued in ast_queue_frame.

    (closes issue #17882)
    Reported by: seanbright
    Tested by: seanbright
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@288007 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/channel.c b/main/channel.c
index b332dce1e96de7e23e2243bdfaa910ce47fae31b..29066ebf83e7e82ffb12af1b23c7f00c4d4e1988 100644 (file)
--- a/main/channel.c
+++ b/main/channel.c
@@ -1366,7 +1366,9 @@ static int __ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin, in
        AST_LIST_HEAD_INIT_NOLOCK(&frames);
        for (cur = fin; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
                if (!(f = ast_frdup(cur))) {
-                       ast_frfree(AST_LIST_FIRST(&frames));
+                       if (AST_LIST_FIRST(&frames)) {
+                               ast_frfree(AST_LIST_FIRST(&frames));
+                       }
                        ast_channel_unlock(chan);
                        return -1;
                }