zbar crashes when seeing multiple qr codes in image
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bug 🐞
camera
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Description
Crash Report
This crash report was reported through the automatic crash reporting system 🤖
Traceback
Traceback (most recent call last):
File "electrum\gui\qt\qrreader\qtmultimedia\camera_dialog.py", line 406, in _on_frame_available
File "electrum\qrreader\zbar.py", line 155, in read_qr_code
OSError: exception: access violation reading 0xFFFFFFFF
OSError: exception: access violation reading 0xFFFFFFFF
Reporter
This issue was reported by 22 user(s):
| Electrum Version | Python Version | Operating System | Wallet Type | Locale | Stack |
|---|---|---|---|---|---|
| 4.3.1 | 3.9.11 (tags/v3.9.11:2de452f, Mar 16 2022, 14:21:37) [MSC v.1929 32 bit (Intel)] | Windows-10-10.0.19044-SP0 | imported | ru_RU | ℹ |
| 4.3.4 | 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:24:45) [MSC v.1929 32 bit (Intel)] | Windows-8.1-6.3.9600-SP0 | imported,standard | ru_RU | ℹ |
| 4.3.4 | 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:24:45) [MSC v.1929 32 bit (Intel)] | Windows-10-10.0.19045-SP0 | imported | ru_RU | ℹ |
| 4.4.0 | 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:24:45) [MSC v.1929 32 bit (Intel)] | Windows-10-10.0.19044-SP0 | imported | ru_UA | ℹ |
| 4.4.6 | 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:24:45) [MSC v.1929 32 bit (Intel)] | Windows-8.1-6.3.9600-SP0 | standard | ja_JP | ℹ |
| 4.5.2 | 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:20:04) [MSC v.1929 32 bit (Intel)] | Windows-10-10.0.19045-SP0 | standard | ru_RU | ℹ |
| 4.5.4 | 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:20:04) [MSC v.1929 32 bit (Intel)] | Windows-10-10.0.22631-SP0 | 1of2,imported,standard | en_US | ℹ |
| 4.6.1 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-11-10.0.22631-SP0 | standard | Engli | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-11-10.0.26100-SP0 | Engli | ℹ | |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | imported | pt_BR | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | imported | pt_BR | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-11-10.0.26200-SP0 | standard | Engli | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | standard,imported | Engli | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | standard | Engli | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-11-10.0.26200-SP0 | standard | Germa | ℹ |
| 4.7.0 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-11-10.0.22631-SP0 | imported | Russi | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | imported | Arabi | ℹ |
| 4.6.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | imported | Arabi | ℹ |
| 4.7.0 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | standard | Engli | ℹ |
| 4.7.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | standard | Engli | ℹ |
| 4.7.0 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | Arabi | ℹ | |
| 4.7.2 | 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] | Windows-10-10.0.19045-SP0 | standard | Germa | ℹ |
Additional Information
QRを読み取るとｴﾗｰ
keeps crashing evereytime i try to read a qrcode (with camera, from screen, or file)
Read QR from screen
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with electrum/qrreader/zbar.py at line 155 and trace its caller in electrum/gui/qt/qrreader/qtmultimedia/camera_dialog.py at line 406. Reproduce the crash using an image or camera view containing multiple QR codes, then verify that the QR reader no longer raises the reported access violation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 28/100