** Description changed: - Most VM places are using pmd_none but a few are still using pmd_present. - The meaning is about the same for the pmd. However pmd_present would - return the wrong value on PROT_NONE ranges. When the code using - pmd_present gets a false negative, the kernel will crash. An - unprivileged local user could use this flaw to crash the system. + arch/x86/include/asm/pgtable.h in the Linux kernel before 3.6.2, when + transparent huge pages are used, does not properly support PROT_NONE + memory regions, which allows local users to cause a denial of service + (system crash) via a crafted application. Break-Fix: - 027ef6c87853b0a9df53175063028edb4950d476
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1130943 Title: CVE-2013-0309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1130943/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
