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libuv: backport IDNA input/output hardening fixes

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Backport libuv commit `0f2d7e78` (fix: always zero-terminate idna
output, 2024-01-18, `v1.48.0~4`) and libuv commit `3530bcc3` (fix:
reject zero-length idna inputs, 2024-01-18, `v1.48.0~3`).

Fixes: #26112
This commit is contained in:
Brad King
2024-07-15 15:47:31 -04:00
parent b9e2f6828f
commit 890beb19e6
1 changed files with 6 additions and 2 deletions
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8
Utilities/cmlibuv/src/idna.c
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@@ -274,6 +274,9 @@ long uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
char* ds;
int rc;
if (s == se)
return UV_EINVAL;
ds = d;
si = s;
@@ -308,8 +311,9 @@ long uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
return rc;
}
if (d < de)
*d++ = '\0';
if (d >= de)
return UV_EINVAL;
*d++ = '\0';
return d - ds; /* Number of bytes written. */
}