| Summary: | Possible to freeze NeoChat temporarily via image rendering | ||
|---|---|---|---|
| Product: | [Applications] NeoChat | Reporter: | Jan Bidler <janbidler00> |
| Component: | General | Assignee: | Tobias Fella <fella> |
| Status: | RESOLVED LATER | ||
| Severity: | normal | CC: | carl |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | All | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: | SVG which freezes neochat | ||
I don't really see any potential for us to fix that unfortunately How much control do you have over the SVG rendering? Would it maybe be possible to disable the rendering of external svg assets? |
Created attachment 149530 [details] SVG which freezes neochat SUMMARY By abusing the fact that NeoChat tries to render all images on the main thread (I assume at least) it's possible to temporarily freeze NeoChat completely by i.e. sending an svg which links to very big images. STEPS TO REPRODUCE 1. Have someone send an svg which has references to very big (>100MB+) images in a room 2. Open the room with neochat. OBSERVED RESULT NeoChat becomes unresponsive and freezes for a while, while trying to render the svg. EXPECTED RESULT NeoChat should not freeze. SOFTWARE/OS VERSIONS Windows: 10 21H1 Linux: Arch Linux NeoChat: 22.04 KDE Frameworks Version: 5.94.0 Qt Version: 5.15.2