From 46b33d2b45075b5b538e92491751d8a6279b26f9 Mon Sep 17 00:00:00 2001 From: Howard Chu Date: Tue, 6 Jan 2026 20:52:25 +0000 Subject: [PATCH 1/2] ITS#10421 mdb_load: check for malicious input --- libraries/liblmdb/mdb_load.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libraries/liblmdb/mdb_load.c b/libraries/liblmdb/mdb_load.c index d266b4f6e1..4e9dbcbabf 100644 --- a/libraries/liblmdb/mdb_load.c +++ b/libraries/liblmdb/mdb_load.c @@ -208,6 +208,12 @@ badend: c1 = buf->mv_data; len = strlen((char *)c1); + if (!len) { + /* This can only happen with an intentionally invalid input + * with a NUL byte after the leading SPACE + */ + goto badend; + } l2 = len; /* Is buffer too short? */ From f1620c3a1b8b7f80e12128aecfd60cbda5ca4f7d Mon Sep 17 00:00:00 2001 From: Howard Chu Date: Tue, 6 Jan 2026 20:53:47 +0000 Subject: [PATCH 2/2] ITS#10421 --- libraries/liblmdb/CHANGES | 1 + 1 file changed, 1 insertion(+) diff --git a/libraries/liblmdb/CHANGES b/libraries/liblmdb/CHANGES index 0606e5d537..0d18ac1189 100644 --- a/libraries/liblmdb/CHANGES +++ b/libraries/liblmdb/CHANGES @@ -9,6 +9,7 @@ LMDB 0.9.34 Engineering ITS#10346 - fix mdb_env_copy2 with values > (2GB-16) ITS#10355 - fix mplay build on musl ITS#10396 - fix mdb_cursor_del0 with multiple DUPSORT cursors + ITS#10421 - mdb_load: check for malicious input LMDB 0.9.33 Release (2024/05/21) ITS#9037 mdb_page_search: fix error code when DBI record is missing