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ext/sockets: socket_strerror follow-up on GH-16267 fix.

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boundaries should be INT_MIN <= val < INT_MAX in fact.

close GH-16891
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David Carlier 2024-11-28 13:00:42 +00:00
parent 3702f9783b
commit 3bea6a2ddb
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3 changed files with 14 additions and 10 deletions
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4
NEWS
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@ -14,6 +14,10 @@ PHP NEWS
- SimpleXML:
. Fixed bug GH-17040 (SimpleXML's unset can break DOM objects). (nielsdos)
- Sockets:
. Fixed bug GH-16276 (socket_strerror overflow handling with INT_MIN).
(David Carlier / cmb)
- Streams:
. Fixed bug GH-17037 (UAF in user filter when adding existing filter name due
to incorrect error handling). (nielsdos)

4
ext/sockets/sockets.c
View file

@ -354,7 +354,11 @@ char *sockets_strerror(int error) /* {{{ */
#ifndef PHP_WIN32
if (error < -10000) {
if (error == INT_MIN) {
error = 2147473648;
} else {
error = -error - 10000;
}
#ifdef HAVE_HSTRERROR
buf = hstrerror(error);

14
ext/sockets/tests/gh16267.phpt
View file

@ -3,20 +3,16 @@ GH-16267 - overflow on socket_strerror argument
--EXTENSIONS--
sockets
--SKIPIF--
<?php if (PHP_INT_SIZE != 8) die('skip 64-bit only'); ?>
<?php if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only"); ?>
--FILE--
<?php
var_dump(socket_strerror(-2147483648));
try {
socket_strerror(PHP_INT_MIN);
} catch (\ValueError $e) {
echo $e->getMessage() . PHP_EOL;
}
try {
socket_strerror(PHP_INT_MAX);
socket_strerror(2147483648);
} catch (\ValueError $e) {
echo $e->getMessage() . PHP_EOL;
}
?>
--EXPECTF--
socket_strerror(): Argument #1 ($error_code) must be between %s and %s
socket_strerror(): Argument #1 ($error_code) must be between %s and %s
string(%d) "%S"
socket_strerror(): Argument #1 ($error_code) must be between %i and %d