Description of problem: If running under GNOME Shell under Wayland, and Firefox is also running in Wayland mode (firefox-wayland), an attempt to repeatedly paste a long text into any unconstrained text input control (input type=text) will eventually crash Firefox with a SIGSEGV. The crash does NOT happen if Firefox is started in the default X11 mode, even under GNOME Shell on Wayland. Version-Release number of selected component (if applicable): firefox-66.0.1-1.fc29.x86_64 firefox-wayland-66.0.1-1.fc29.x86_64 How reproducible: Always Steps to Reproduce: 1. Start GNOME Shell using Wayland (the default in Fedora 29). Other wayland compositors have not been tested. 2. Install, then run firefox-wayland 3. Open any web page with a text input control that does not have any maximum length specified 4. Focus on the input control, then press any letter key to get a long string of characters 5. Select the entirety of this character string and copy it to the clipboard 6. Focus on the input control, and keep Ctrl-V pressed to paste the long string at high speed Actual results: Firefox segfaults and terminates Expected results: No segfault. Firefox should either keep accepting characters in the input control, or block the paste attempts on whathever limit is appropriate. Additional info: ABRT points me to this report, but I do not know if it is the right one: https://retrace.fedoraproject.org/faf/reports/2507322/
This crash no longer happens after update to gtk3-3.24.1-3.fc29.x86_64. Linking as duplicate of #1695521 . *** This bug has been marked as a duplicate of bug 1695521 ***