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posix/mmap: validate addr non-null before alignment check

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huangshuhua
2025-07-14 02:29:01 +00:00
committed by shuhua hua
parent 317cfa50d0
commit 13cb96d1e3
1 changed files with 2 additions and 2 deletions
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cpukit/posix/src/mmap.c
+2 -2
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@@ -141,11 +141,11 @@ void *mmap(
/* Check for illegal addresses. Watch out for address wrap. */
if ( map_fixed ) {
if ((uintptr_t)addr & PAGE_MASK) {
if ( addr == NULL ) {
errno = EINVAL;
return MAP_FAILED;
}
if ( addr == NULL ) {
if ((uintptr_t)addr & PAGE_MASK) {
errno = EINVAL;
return MAP_FAILED;
}