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Re: two (and a half) more crashes in regex module
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From: |
Assaf Gordon |
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Subject: |
Re: two (and a half) more crashes in regex module |
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Date: |
Tue, 18 Sep 2018 16:20:46 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
Hello,
On 12/09/18 12:02 AM, Assaf Gordon wrote:
$ echo 1 | grep -E "(\'|^)(\1|)"
grep: regexec.c:1375: pop_fail_stack: Assertion `num >= 0' failed.
Aborted
I don't have a fix yet, but I reduced the crash to this interesting case:
$ echo 1 | grep -E '(^|$)\1'
1
$ echo 1 | grep -E '($|^)\1'
grep: regexec.c:1375: pop_fail_stack: Assertion `num >= 0' failed.
Aborted