Repository navigation
seg fault in stream_filter_prepend #19864
Description
Description
The following code:
<?php
$v_52886 = '\n';
$v_52851 = 100;
$v_52852 = str_repeat($v_52886,$v_52851,);
$v_52853 = 'data://text/plain,';
$v_52854 = $v_52853 . $v_52852;
$v_52855 = 'r';
$v_52856 = fopen($v_52854,$v_52855,);
$v_52857 = 'zlib.deflate';
$v_52880 = 2;
$v_52859 = 6;
$v_52860 = stream_filter_prepend($v_52856,$v_52857,$v_52880,$v_52859,);Resulted in this output:
AddressSanitizer:DEADLYSIGNAL
=================================================================
==2286852==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000000000 bp 0x7ffd37aa4890 sp 0x7ffd37aa4518 T0)
==2286852==Hint: pc points to the zero page.
==2286852==The signal is caused by a READ memory access.
==2286852==Hint: address points to the zero page.
#0 0x0 (<unknown module>)
#1 0x14cbd940151f (/lib/x86_64-linux-gnu/libc.so.6+0x4251f)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (<unknown module>)
==2286852==ABORTING
PHP Version
nightly
Operating System
22.04
Activity
chongwick commentedon Sep 17, 2025
#19705? Could someone double check, please?
devnexen commentedon Sep 17, 2025
yes it s a duplicate.