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LibC: Verify pointer returned by malloc()

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Stanisław Wiśniewski 2024-03-31 20:13:37 +02:00 committed by Andrew Kaster
parent bdb8af94ee
commit 72911cd006
Notes: sideshowbarker 2024-07-17 01:04:03 +09:00 
Author: https://github.com/h3xOo
Commit: https://github.com/SerenityOS/serenity/commit/72911cd006
Pull-request: https://github.com/SerenityOS/serenity/pull/23785
Reviewed-by: https://github.com/LucasChollet
1 changed files with 3 additions and 0 deletions
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Userland/Libraries/LibC/unistd.cpp
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@ -448,6 +448,9 @@ static int ttyname_r_for_directory(char const* directory_name, dev_t device_mode
}
name_path = (char*)malloc(name_length);
// FIXME: ttyname_r() is not allowed to return ENOMEM, find better way to store name_path,
// perhaps a static storage.
VERIFY(name_path);
memset(name_path, 0, name_length);
memcpy(name_path, directory_name, strlen(directory_name));
memcpy(&name_path[strlen(directory_name)], entry->d_name, strlen(entry->d_name));