Comment on attachment 9104623
Bug 1590984 - Use poll() instead of select() in WebRTC code r=drno
### ESR Uplift Approval Request
* **If this is not a sec:{high,crit} bug, please state case for ESR
consideration**: This fixes a crash that can easily occur when using WebRTC.
* **User impact if declined**: Firefox may crash when using WebRTC; this will
happen independently of the user since it's triggered by the file descriptor
numbers used by the WebRTC devices (camera, microphone, etc...).
* **Fix Landed on Version**: 72
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: The fix
is small and almost mechanical and the patch has been in nightly and then beta
for two months now without causing regressions.
* **String or UUID changes made by this patch**: None
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https://bugs.launchpad.net/bugs/1849615
Title:
WebRTC-related crashes
Status in Mozilla Firefox:
Fix Released
Status in firefox package in Ubuntu:
Fix Committed
Bug description:
In Mozilla we've detected a spike of crashes in the Ubuntu-packaged
version of Firefox 69.0.x. All the crashes are happening in the WebRTC
code and specifically libc's FD_SET, FD_CLR and FD_ISSET range-
checking safety is causing an abort. Is it possible that Firefox is
being built with a FD_SETSIZE value that's different from what's used
in libc?
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