diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/lua/xdiff.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/nvim/lua/xdiff.c b/src/nvim/lua/xdiff.c index 035c171a14..8d791a7e74 100644 --- a/src/nvim/lua/xdiff.c +++ b/src/nvim/lua/xdiff.c @@ -185,7 +185,12 @@ static mmfile_t get_string_arg(lua_State *lstate, int idx) luaL_argerror(lstate, idx, "expected string"); } mmfile_t mf; - mf.ptr = (char *)lua_tolstring(lstate, idx, (size_t *)&mf.size); + size_t size; + mf.ptr = (char *)lua_tolstring(lstate, idx, &size); + if (size > INT_MAX) { + luaL_argerror(lstate, idx, "string too long"); + } + mf.size = (int)size; return mf; } |