Date: Thu, 17 Feb 2011 15:34:55 -0500 (EST) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: "Steven M. Christey" <coley@...us.mitre.org> Subject: Re: CVE request - kernel: thp: prevent hugepages during args/env copying into the user stack Please use CVE-2011-0999. Thanks. -- JB ----- Original Message ----- > "Transparent hugepages can only be created if rmap is fully > functional. > A specially crafted binary could allow the user stack to grow huge and > backed by hugepages without this patch while is_vma_temporary_stack() > is > true. > > This also optmizes away some harmless but unnecessary setting of > khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON." > > mm/huge_memory.c - introduced in 71e3aac0 (v2.6.38-rc1) > > https://bugzilla.redhat.com/show_bug.cgi?id=678209 > http://git.kernel.org/linus/a7d6e4ecdb7648478ddec76d30d87d03d6e22b31 > > Thanks, Eugene
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