https://git.reactos.org/?p=reactos.git;a=commitdiff;h=d4993c67cd8e9bb724ceeb26e0b252273c8184e1
commit d4993c67cd8e9bb724ceeb26e0b252273c8184e1 Author: Timo Kreuzer <[email protected]> AuthorDate: Tue Sep 19 18:32:00 2023 +0300 Commit: Timo Kreuzer <[email protected]> CommitDate: Fri Nov 10 19:19:22 2023 +0200 [CRT] Fix parameter check for _memicmp on NT 6+ Fixes a crash in msvcrt_winetest:string --- sdk/lib/crt/mem/memicmp.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sdk/lib/crt/mem/memicmp.c b/sdk/lib/crt/mem/memicmp.c index b98608b3242..e99d9b2a2a2 100644 --- a/sdk/lib/crt/mem/memicmp.c +++ b/sdk/lib/crt/mem/memicmp.c @@ -8,6 +8,19 @@ int CDECL _memicmp(const void *s1, const void *s2, size_t n) { + if (NtCurrentPeb()->OSMajorVersion >= 6) + { + if (!s1 || !s2) + { + if (n != 0) + { + MSVCRT_INVALID_PMT(NULL, EINVAL); + return _NLSCMPERROR; + } + return 0; + } + } + if (n != 0) { const unsigned char *p1 = s1, *p2 = s2;
