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| author | Jeremy Allison <jra@samba.org> | 2008-02-29 06:55:33 -0800 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2008-02-29 06:55:33 -0800 |
| commit | 6a7b6a1961b2bb74e25b4134422089f16a32cc9e (patch) | |
| tree | 75135d554007d96c6f3edd97e2d11a2be3cda685 /source3/nmbd/nmbd_responserecordsdb.c | |
| parent | 6346ab79a61be7325fdf3f16ac7f002f8128050c (diff) | |
| download | samba-6a7b6a1961b2bb74e25b4134422089f16a32cc9e.tar.gz samba-6a7b6a1961b2bb74e25b4134422089f16a32cc9e.tar.bz2 samba-6a7b6a1961b2bb74e25b4134422089f16a32cc9e.zip | |
Patch to fix the "Invalid read of size 4" errors. Bug #3617.
Jeremy.
(This used to be commit fa12667ec284fdda45b79cbf6bf548ab0faae34f)
Diffstat (limited to 'source3/nmbd/nmbd_responserecordsdb.c')
| -rw-r--r-- | source3/nmbd/nmbd_responserecordsdb.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/source3/nmbd/nmbd_responserecordsdb.c b/source3/nmbd/nmbd_responserecordsdb.c index 6498ce04cf..b042fb41ed 100644 --- a/source3/nmbd/nmbd_responserecordsdb.c +++ b/source3/nmbd/nmbd_responserecordsdb.c @@ -46,6 +46,24 @@ static void add_response_record(struct subnet_record *subrec, void remove_response_record(struct subnet_record *subrec, struct response_record *rrec) { + /* It is possible this can be called twice, + with a rrec pointer that has been freed. So + before we inderect into rrec, search for it + on the responselist first. Bug #3617. JRA. */ + + struct response_record *p = NULL; + + for (p = subrec->responselist; p; p = p->next) { + if (p == rrec) { + break; + } + } + + if (p == NULL) { + /* We didn't find rrec on the list. */ + return; + } + DLIST_REMOVE(subrec->responselist, rrec); if(rrec->userdata) { |