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[Bug bpf/24811] stapbpf segfault: nested foreach loops can corrupt sorted key data when limit==0
- From: "me at serhei dot io" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Mon, 15 Jul 2019 17:24:54 +0000
- Subject: [Bug bpf/24811] stapbpf segfault: nested foreach loops can corrupt sorted key data when limit==0
- Auto-submitted: auto-generated
- References: <bug-24811-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=24811
Serhei Makarov <me at serhei dot io> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from Serhei Makarov <me at serhei dot io> ---
Indeed, replacing 'limit 0' with 'limit lim' where lim is a variable will cause
the same segfault in existing foreach.stp testcase.
Luckily a one-line fix was possible. Committing separately ahead of pr23858
work.
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