tree c376cd6c6a00f79c736ddf691bf056c1df0c70d5
parent b14c8e1d969894f8f1867b3ca81de7b309099f9e
author Willy Tarreau <w@1wt.eu> 1717174371 +0200
committer Amaury Denoyelle <adenoyelle@haproxy.com> 1717692441 +0200

BUG/MINOR: tools: fix possible null-deref in env_expand() on out-of-memory

In GH issue #2586 @Bbulatov reported a theoretical null-deref in
env_expand() in case there's no memory anymore to expand an environment
variable. The function should return NULL in this case so that the only
caller (str2sa_range) sees it. In practice it may only happen during
boot thus is harmless but better fix it since it's easy. This can be
backported to all versions where this applies.

(cherry picked from commit ba958fb230d4add678913f18eb520d9d5935c968)
Signed-off-by: Amaury Denoyelle <adenoyelle@haproxy.com>
(cherry picked from commit 43192a0af8f981d50d01d4493bf8e1b124dec5be)
Signed-off-by: Amaury Denoyelle <adenoyelle@haproxy.com>
(cherry picked from commit 91bf1b1fbfd3da81d84bac2f8f07e87451ebcd25)
Signed-off-by: Amaury Denoyelle <adenoyelle@haproxy.com>