Message 274715 - Python tracker

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In-reply-to
Author	ncoghlan
Recipients	martin.panter, ncoghlan, petr.viktorin
Date	2016年09月07日.02:46:38
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1473216399.07.0.223374788136.issue27990@psf.upfronthosting.co.za>

Content
The configure script determines the setting for HAVE_GETRANDOM_SYSCALL at build time, which means the dynamic check for getrandom() support in the Linux kernel gets disabled when building against an older kernel. This impacts the implicit use of getrandom() in os.urandom(): https://mail.python.org/pipermail/security-sig/2016-June/000060.html And also the new os.getrandom() API added in #27778: http://bugs.python.org/issue27778#msg274698 It's desirable to have a way of forcing the inclusion of the dynamic runtime check, even if the currently running kernel doesn't provide the syscall itself.

Content

The configure script determines the setting for HAVE_GETRANDOM_SYSCALL at build time, which means the dynamic check for getrandom() support in the Linux kernel gets disabled when building against an older kernel.
This impacts the implicit use of getrandom() in os.urandom(): https://mail.python.org/pipermail/security-sig/2016-June/000060.html
And also the new os.getrandom() API added in #27778: http://bugs.python.org/issue27778#msg274698
It's desirable to have a way of forcing the inclusion of the dynamic runtime check, even if the currently running kernel doesn't provide the syscall itself.

History
Date	User	Action	Args
2016年09月07日 02:46:39	ncoghlan	set	recipients: + ncoghlan, petr.viktorin, martin.panter
2016年09月07日 02:46:39	ncoghlan	set	messageid: <1473216399.07.0.223374788136.issue27990@psf.upfronthosting.co.za>
2016年09月07日 02:46:39	ncoghlan	link	issue27990 messages
2016年09月07日 02:46:38	ncoghlan	create

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