OSV-2022-327
Stack-use-after-return in QSemaphore::release
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46525
The issue already existed before oss-fuzz could reproduce it. oss-fuzz found it after qdrawhelper routines were made multithreaded. There might be ways to trigger the issue before that.
Crash type: Stack-use-after-return WRITE 8
Crash state:
QSemaphore::release
std::__1::__function::__func<void handleSpans<BlendSrcGeneric>
FunctionRunnable::run
What each source reports
OSV No score
Stack-use-after-return in QSemaphore::release
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46525
The issue already existed before oss-fuzz could reproduce it. oss-fuzz found it after qdrawhelper routines were made multithreaded. There might be ways to trigger the issue before that.
Crash type: Stack-use-after-return WRITE 8
Crash state:
QSemaphore::release
std::__1::__function::__func<void handleSpans<BlendSrcGeneric>
FunctionRunnable::run
- Record
OSV-2022-327- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
qtOSS-Fuzz |
Commit ranges | Not evaluated |
Not evaluated means the source gave git commits or a range we can't read, so we can't tell which releases are affected. A fixed version beside it is the source’s own claim.
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2022-327 is a vulnerability with no CVSS score yet in qt, published April 10, 2022. No source lists public exploit code. A source reports a fix.