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| author | Jim McDonough <jmcd@samba.org> | 2009-05-21 16:26:26 -0400 |
|---|---|---|
| committer | Jim McDonough <jmcd@samba.org> | 2009-05-21 16:29:48 -0400 |
| commit | a91bcbccf8a2243dac57cacec6fdfc9907580f69 (patch) | |
| tree | bf0265b5f359a10e58fb2d774dfdf3c6abf31f19 | |
| parent | 96ede10cfb3b939b6d69e635baef3c8694bbc1f6 (diff) | |
| download | samba-a91bcbccf8a2243dac57cacec6fdfc9907580f69.tar.gz samba-a91bcbccf8a2243dac57cacec6fdfc9907580f69.tar.bz2 samba-a91bcbccf8a2243dac57cacec6fdfc9907580f69.zip | |
Detect tight loop in tdb_find()
| -rw-r--r-- | lib/tdb/common/tdb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/tdb/common/tdb.c b/lib/tdb/common/tdb.c index 8c61ec1a89..b59bb1571c 100644 --- a/lib/tdb/common/tdb.c +++ b/lib/tdb/common/tdb.c @@ -96,6 +96,11 @@ static tdb_off_t tdb_find(struct tdb_context *tdb, TDB_DATA key, uint32_t hash, NULL) == 0) { return rec_ptr; } + /* detect tight infinite loop */ + if (rec_ptr == r->next) { + TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_find: loop detected.\n")); + return TDB_ERRCODE(TDB_ERR_CORRUPT, 0); + } rec_ptr = r->next; } return TDB_ERRCODE(TDB_ERR_NOEXIST, 0); |