[Webkit-unassigned] [Bug 212380] pthread_create() fails with EPERM in the second WebKitWebProcess with sandbox on

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=212380

--- Comment #1 from Michael Catanzaro <mcatanzaro at gnome.org> ---
(In reply to Milan Crha from comment #0)
>         // Don't allow faking input to the controlling tty (CVE-2017-5226)
>         { SCMP_SYS(ioctl), &ttyArg },

So either we are using libseccomp wrong (and I don't think we are) or pthread_create() is attempting to write to a terminal or serial device (and I don't think it is). And nobody else has reported this yet (certainly it doesn't happen for me). This one is super weird.

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