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mmap: validate hint

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Matheus
2026-04-06 17:44:06 -03:00
parent 4a28a7595d
commit ad127fe0d0
1 changed files with 5 additions and 0 deletions
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kernel-src/sys/syscalls/mmap.c
+5
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@@ -34,6 +34,11 @@ syscallret_t syscall_mmap(context_t *context, void *hint, size_t len, int prot,
return ret; return ret;
} }
if (!IS_USER_ADDRESS(hint)) {
ret.errno = EINVAL;
return ret;
}
if ((flags & MAP_PRIVATE) && (flags & MAP_SHARED)) { if ((flags & MAP_PRIVATE) && (flags & MAP_SHARED)) {
ret.errno = EINVAL; ret.errno = EINVAL;
return ret; return ret;