zeertzjq a4bec30b7b vim-patch:9.0.2158: [security]: use-after-free in check_argument_type ...

Problem:  [security]: use-after-free in check_argument_type
Solution: Reset function type pointer when freeing the function type
          list

function pointer fp->uf_func_type may point to the same memory, that was
allocated for fp->uf_type_list. However, when cleaning up a function
definition (e.g. because it was invalid), fp->uf_type_list will be
freed, but fp->uf_func_type may still point to the same (now) invalid
memory address.

So when freeing the fp->uf_type_list, check if fp->func_type points to
any of those types and if it does, reset the fp->uf_func_type pointer to
the t_func_any (default) type pointer

closes: vim/vim#13652

0f28791b21

Co-authored-by: Christian Brabandt <cb@256bit.org>

2024-08-02 06:11:58 +08:00

..

testdir

vim-patch:9.0.2158: [security]: use-after-free in check_argument_type

2024-08-02 06:11:58 +08:00

memfile_test.c

build: remove PVS

2023-11-12 21:26:39 +01:00