Edit report at https://bugs.php.net/bug.php?id=77447&edit=1
ID: 77447
User updated by: hanno at hboeck dot de
Reported by: hanno at hboeck dot de
Summary: PHP 7.3 built with ASAN crashes in
zend_cpu_supports_avx2
Status: Closed
Type: Bug
Package: Reproducible crash
Operating System: Linux
PHP Version: 7.3.1
Assigned To: nikic
Block user comment: N
Private report: N
New Comment:
The "--enable-debug" was the issue. With it no segfault, without I still get a segfault.
Is this intentional? (I don't think this is good: It will mean people will end up seeing
segfaults e.g. if they want to fuzz, where people don't want to enable debugging, because they
want max speed.)
Previous Comments:
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[2019-01-18 12:11:23] nikic@php.net
Could you please provide a stacktrace for the segfault? I'm wondering which codepath is calling
cpu_supports() in your case.
Just to check, you are using gcc, and you are compiling with --enable-debug?
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[2019-01-16 17:54:08] hanno at hboeck dot de
I did, it was a completely fresh build.
Is it possible it's using the headers from the system-wide installed version instead of from
the source code?
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[2019-01-16 15:33:59] nikic@php.net
Did you do a full rebuild after applying the change? The header change will not be picked up in an
incremental build.
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[2019-01-16 11:56:57] hanno at hboeck dot de
I tried patching 7.3.1 with that commit and it still crashes for me, so I don't believe this is
fixed.
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[2019-01-14 10:45:44] nikic@php.net
Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c8c5a3ab8afdaa4692784a54a678cc565ecd1834
Log: Fixed bug #77447
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