Christophe CURIS fd56152202 WPrefs: fix memory leak and potential buffer overflow ...

Coverity pointed that the "text" returned by WMGetTextFieldText was never
freed (CID #331578, because WMSetTextFieldText does its own copy, it does
not take the pointer as-is).

By looking at the code, there is also a potential buffer overflow because
the buffer alloc'd for "value" is sized for the exact number of digits
before increase, but the +delta can make the number use more digits so we
may write past the end of original buffer.
We write to a stack-allocated one, so it does not cost anything and does
not participates to memory fragmentation.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>

2021-05-18 17:49:17 +01:00

10 KiB

Raw Blame History

View Raw