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LibC: Fix memory leak in getcwd

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Ben Wiederhake 2021-01-16 13:32:11 +01:00 committed by Andreas Kling
parent ed857bc06e
commit 72ac97ef6a
Notes: sideshowbarker 2024-07-18 23:10:25 +09:00 
Author: https://github.com/BenWiederhake
Commit: https://github.com/SerenityOS/serenity/commit/72ac97ef6ab
Pull-request: https://github.com/SerenityOS/serenity/pull/4965
Reviewed-by: https://github.com/bugaevc
Reviewed-by: https://github.com/emanuele6
1 changed files with 5 additions and 0 deletions
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5
Userland/Libraries/LibC/unistd.cpp
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@ -322,11 +322,16 @@ int fchdir(int fd)
char* getcwd(char* buffer, size_t size)
{
bool self_allocated = false;
if (!buffer) {
size = size ? size : PATH_MAX;
buffer = (char*)malloc(size);
self_allocated = true;
}
int rc = syscall(SC_getcwd, buffer, size);
if (rc < 0 && self_allocated) {
free(buffer);
}
__RETURN_WITH_ERRNO(rc, buffer, nullptr);
}