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Maniphest T4498

Asan findings in tests/t-logging.c
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Description

Hi Everyone,

I'm performing a Asan run on GnuPG 2.2.15 and all of its dependencies. Everything was built with -fsanitize=address -fno-omit-frame-pointer. For Autotools projects the two flags get placed in CFLAGS, CXXFLAGS and LDFLAGS.

It looks likeAsan is producing multiple findings in gpgerror's tests/t-logging.c. It looks like logbuf is not being free'd before calling fail or die.

Attached is an updated t-logging.c that cleans up before exiting. It avoids the false positives so the build can continue.

t-logging.c7 KBDownload

Revisions and Commits

rE libgpg-error
rEbdb9561a366f tests: Fix a memory leak.

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Event Timeline

JW created this task.May 10 2019, 11:34 PM
JW created this object in space S1 Public.
• gniibe claimed this task.May 14 2019, 4:42 AM
• gniibe triaged this task as Normal priority.
• gniibe edited projects, added gpgrt; removed gnupg.
• gniibe added a subscriber: • gniibe.

Thanks for your report.
Let me handle issue by issue.

There are multiple problems; memory leak on failure path and memory leak on success path.

IIUC, it is not a problem of die/fail with non-freed logbuf, but a leak of logbuf on success path.

I'm fixing success path leakage.

• gniibe added a commit: rEbdb9561a366f: tests: Fix a memory leak..May 14 2019, 4:46 AM
• gniibe changed the task status from Open to Testing.Dec 6 2019, 5:28 AM
• gniibe added a subtask: T4772: Release libgpg-error 1.37.
• werner closed subtask T4772: Release libgpg-error 1.37 as Resolved.Feb 7 2020, 1:47 PM
• werner closed this task as Resolved.Feb 7 2020, 1:50 PM