google / google/sanitizers

Sanitizers use wrong version of intercepted symbols

Open
#628 9 comments 1 reaction 0 assignees View on GitHub
enhancement
Dominant language
C
Stars
12.5k
Forks
1.1k
PR merge metrics
No merged PRs in 30d

Description

Because intercepted symbols are reexported without version information, wrong version of a symbol could be used during runtime. An example would be fmemopen in glibc2.22 (https://github.com/google/sanitizers/issues/627)

Contributor guide

Open the contributing guide

Research direction

Start by reading the linked fmemopen example in google/sanitizers issue 627 and tracing how intercepted symbols are reexported. Done means runtime symbol resolution preserves the required version information and no longer selects the wrong glibc symbol version.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems, testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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