Links:
Valgrind Home Page URL: https://www.valgrind.org/
Valgrind News URL: https://www.valgrind.org/docs/manual/dist.news.html

Contact: Paul Floyd <pjfloyd@wanadoo.fr>

devel/valgrind-devel is in the process of being updated. This contains most of what will be in the official release of Valgrind 3.22 due out in October.

memcheck has been enhanced with some more checks. It will now report usage of realloc with a size of zero. Such usage is not portable and is deprecated (C23 will make it Undefined Behaviour). memcheck now validates the values used for alignment and sized delete for memalign, posix_memalign, aligned_alloc and all aligned and sized overloads of operator new and operator delete. Reading DWARF debuginfo is now done in a lazy manner which can improve performance.

As usual there are numerous small bugfixes.

Specific to FreeBSD there is now support for FreeBSD 15. Two extra _umtx_op operations are now supported, UMTX_OP_GET_MIN_TIMEOUT and UMTX_OP_SET_MIN_TIMEOUT. There is a fix for the use of sysctl kern proc pathname with the guest pid or -1, which previously returned the path of the Valgrind host. The sysctl will now return the path of the guest. Support for the close_range system call has been added.