Re: A memory leak in _nc_wrap_entry

[Thomas Dickey]

On Thu, Aug 20, 2020 at 11:03:57AM +0800, 乐泰 wrote:
> Reporter: Tai
> 
> 
> Version: ncurses-6.2
> 
> 
> Command: AFL_USE_ASAN=1 sudo make install
> 
> 
> Environment: Ubuntu 16.04 x86-64
> 
> 
> Detail Information: we have found some memory leaks in ncurses-6.2 when we 
> compile the ncurses-6.2 with address sanitizer. The compile commands are:
> $cd ./ncurses-6.2
> $mkdir asan-ins
> $cd asan-ins
> $AFL_USE_ASAN=1 CC=afl-gcc CXX=afl-g++ CFLAGS="-g3" CXXFLAGS="-g3" 
> ../configure --prefix=`pwd`/bin --disable-stripping
> $AFL_USE_ASAN=1 make
> $AFL_USE_ASAN=1 sudo make install
> Then it reports memory leaks as:

I'd use valgrind for this (asan2 has some problems, and in a recent
report gave incorrect information), and note the faq:

https://invisible-island.net/ncurses/ncurses.faq.html#config_leaks

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net
ftp://ftp.invisible-island.net

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