[pcre-dev] [Bug 2399] New: PHP segmentation fault on preg_ma…

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Autor: admin
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A: pcre-dev
Assumpte: [pcre-dev] [Bug 2399] New: PHP segmentation fault on preg_match()
https://bugs.exim.org/show_bug.cgi?id=2399

            Bug ID: 2399
           Summary: PHP segmentation fault on preg_match()
           Product: PCRE
           Version: 10.33 (PCRE2)
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Code
          Assignee: ph10@???
          Reporter: aparfenov@???
                CC: pcre-dev@???


Created attachment 1190
--> https://bugs.exim.org/attachment.cgi?id=1190&action=edit
SegFault reproduce

Hello! When use pcre2 with unicode support preg_match() with pattern "\X*" on
string with ASCII and CP1251 chars occurs Segmentation Fault:

gdb output:
Program received signal SIGSEGV, Segmentation fault.
0x00005555556c0465 in do_extuni_no_utf (args=<optimized out>, cc=0x7ffff4c6554d
"") at /php-src-7.3.5/ext/pcre/pcre2lib/pcre2_jit_compile.c:7292
7292    lgb = UCD_GRAPHBREAK(c);


(gdb) bt
#0 0x00005555556c0465 in do_extuni_no_utf (args=<optimized out>,
cc=0x7ffff4c6654d "") at
/php-src-7.3.5/ext/pcre/pcre2lib/pcre2_jit_compile.c:7292
#1 0x00007ffff4e02079 in ?? ()
#2 0x00005555562e3a38 in ?? ()
#3 0x00005555562e39e8 in ?? ()
#4 0x0000000000000000 in ?? ()

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