oss-security - CVE-2008-3833 kernel: remove SUID when splicing into an inode

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Message-ID: <48E56D76.3080603@redhat.com>
Date: Fri, 03 Oct 2008 08:55:18 +0800
From: Eugene Teo <eteo@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE-2008-3833 kernel: remove SUID when splicing into an inode

This was committed in upstream kernel. I am unable to find a reference
to any discussion about this on LKML. Fixed by Mark Fasheh.

"generic_file_splice_write() does not remove S_ISUID or S_ISGID. This is
inconsistent with the way we generally write to files."

Please use CVE-2008-3833 for this vulnerability. This has similar
consequences as CVE-2008-4210.

Upstream commit: 8c34e2d63231d4bf4852bac8521883944d770fe3

Reference:
https://bugzilla.redhat.com/show_bug.cgi?id=464450

Thanks, Eugene

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