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Documents authored by O'Hearn, Peter

Document
DOI: 10.4230/LIPIcs.CONCUR.2023.25
A General Approach to Under-Approximate Reasoning About Concurrent Programs

Authors: Azalea Raad, Julien Vanegue, Josh Berdine, and Peter O'Hearn

Published in: LIPIcs, Volume 279, 34th International Conference on Concurrency Theory (CONCUR 2023)

Abstract
There is a large body of work on concurrent reasoning including Rely-Guarantee (RG) and Concurrent Separation Logics. These theories are over-approximate: a proof identifies a superset of program behaviours and thus implies the absence of certain bugs. However, failure to find a proof does not imply their presence (leading to false positives in over-approximate tools). We describe a general theory of under-approximate reasoning for concurrency. Our theory incorporates ideas from Concurrent Incorrectness Separation Logic and RG based on a subset rather than a superset of interleavings. A strong motivation of our work is detecting software exploits; we do this by developing concurrent adversarial separation logic (CASL), and use CASL to detect information disclosure attacks that uncover sensitive data (e.g. passwords) and out-of-bounds attacks that corrupt data. We also illustrate our approach with classic concurrency idioms that go beyond prior under-approximate theories which we believe can inform the design of future concurrent bug detection tools.
Cite as

Azalea Raad, Julien Vanegue, Josh Berdine, and Peter O'Hearn. A General Approach to Under-Approximate Reasoning About Concurrent Programs. In 34th International Conference on Concurrency Theory (CONCUR 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 279, pp. 25:1-25:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{raad_et_al:LIPIcs.CONCUR.2023.25,
  author =	{Raad, Azalea and Vanegue, Julien and Berdine, Josh and O'Hearn, Peter},
  title =	{{A General Approach to Under-Approximate Reasoning About Concurrent Programs}},
  booktitle =	{34th International Conference on Concurrency Theory (CONCUR 2023)},
  pages =	{25:1--25:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-299-0},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{279},
  editor =	{P\'{e}rez, Guillermo A. and Raskin, Jean-Fran\c{c}ois},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2023.25},
  URN =		{urn:nbn:de:0030-drops-190195},
  doi =		{10.4230/LIPIcs.CONCUR.2023.25},
  annote =	{Keywords: Under-approximate reasoning, incorrectness logic, bug detection, software exploits, separation logic}
}
Document
DOI: 10.4230/DagSemProc.09301.1
09301 Abstracts Collection – Typing, Analysis, and Verification of Heap-Manipulating Programs

Authors: Mooly Sagiv, Arnd Poetzsch-Heffter, and Peter O'Hearn

Published in: Dagstuhl Seminar Proceedings, Volume 9301, Typing, Analysis and Verification of Heap-Manipulating Programs (2010)

Abstract
From July 19 to 24, 2009, the Dagstuhl Seminar 09301 ``Typing, Analysis and Verification of Heap-Manipulating Programs '' was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Mooly Sagiv, Arnd Poetzsch-Heffter, and Peter O'Hearn. 09301 Abstracts Collection – Typing, Analysis, and Verification of Heap-Manipulating Programs. In Typing, Analysis and Verification of Heap-Manipulating Programs. Dagstuhl Seminar Proceedings, Volume 9301, pp. 1-15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{sagiv_et_al:DagSemProc.09301.1,
  author =	{Sagiv, Mooly and Poetzsch-Heffter, Arnd and O'Hearn, Peter},
  title =	{{09301 Abstracts Collection – Typing, Analysis, and Verification of Heap-Manipulating Programs}},
  booktitle =	{Typing, Analysis and Verification of Heap-Manipulating Programs},
  pages =	{1--15},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{9301},
  editor =	{Peter O'Hearn and Arnd Poetzsch-Heffter and Mooly Sagiv},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.09301.1},
  URN =		{urn:nbn:de:0030-drops-24361},
  doi =		{10.4230/DagSemProc.09301.1},
  annote =	{Keywords: Ownership types, static analysis, program verification, heap-manipulating programs}
}
Document
DOI: 10.4230/DagSemProc.09301.2
09301 Executive Summary – Typing, Analysis, and Verification of Heap-Manipulating Programs

Authors: Mooly Sagiv, Arnd Poetzsch-Heffter, and Peter O'Hearn

Published in: Dagstuhl Seminar Proceedings, Volume 9301, Typing, Analysis and Verification of Heap-Manipulating Programs (2010)

Abstract
The document contains an executive summary of the Dagstuhl Seminar "Typing, Analysis, and Verification of Heap-Manipulating Programs" that took place July 2009.
Cite as

Mooly Sagiv, Arnd Poetzsch-Heffter, and Peter O'Hearn. 09301 Executive Summary – Typing, Analysis, and Verification of Heap-Manipulating Programs. In Typing, Analysis and Verification of Heap-Manipulating Programs. Dagstuhl Seminar Proceedings, Volume 9301, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{sagiv_et_al:DagSemProc.09301.2,
  author =	{Sagiv, Mooly and Poetzsch-Heffter, Arnd and O'Hearn, Peter},
  title =	{{09301 Executive Summary – Typing, Analysis, and Verification of Heap-Manipulating Programs}},
  booktitle =	{Typing, Analysis and Verification of Heap-Manipulating Programs},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{9301},
  editor =	{Peter O'Hearn and Arnd Poetzsch-Heffter and Mooly Sagiv},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.09301.2},
  URN =		{urn:nbn:de:0030-drops-24354},
  doi =		{10.4230/DagSemProc.09301.2},
  annote =	{Keywords: Typing, Static Analysis, Verification, Heap-Manipulating Programs}
}
Document
DOI: 10.4230/DagSemRep.216
The Semantic Challenge of Object-Oriented Programming (Dagstuhl Seminar 98261)

Authors: Luca Cardelli, Achim Jung, Peter O'Hearn, and Jens Palsberg

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

Luca Cardelli, Achim Jung, Peter O'Hearn, and Jens Palsberg. The Semantic Challenge of Object-Oriented Programming (Dagstuhl Seminar 98261). Dagstuhl Seminar Report 216, pp. 1-14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (1999)

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@TechReport{cardelli_et_al:DagSemRep.216,
  author =	{Cardelli, Luca and Jung, Achim and O'Hearn, Peter and Palsberg, Jens},
  title =	{{The Semantic Challenge of Object-Oriented Programming (Dagstuhl Seminar 98261)}},
  pages =	{1--14},
  ISSN =	{1619-0203},
  year =	{1999},
  type = 	{Dagstuhl Seminar Report},
  number =	{216},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemRep.216},
  URN =		{urn:nbn:de:0030-drops-151022},
  doi =		{10.4230/DagSemRep.216},
}
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