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iovec: fix vulnerability

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Matheus
2026-04-28 18:53:21 -03:00
parent 4af4c3e26e
commit 56bc12bdff
1 changed files with 1 additions and 1 deletions
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kernel-src/io/iovec.c
+1 -1
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@@ -9,7 +9,7 @@ static inline bool iovec_iterator_finished(iovec_iterator_t *iovec_iterator) {
bool iovec_user_check(iovec_t *iovec, size_t count) { bool iovec_user_check(iovec_t *iovec, size_t count) {
for (int i = 0; i < count; ++i) { for (int i = 0; i < count; ++i) {
// POSIX says that when len is zero, the addr can be an invalid buffer // POSIX says that when len is zero, the addr can be an invalid buffer
if (iovec->len && IS_USER_ADDRESS(iovec[i].addr) == false) if (iovec[i].len && IS_USER_ADDRESS(iovec[i].addr) == false)
return false; return false;
} }