https://bugzilla.novell.com/show_bug.cgi?id=217295 Summary: kernel: missing PowerPC futex implementation leads to unkillable processes Product: openSUSE 10.2 Version: Beta 1 plus Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: thomas@novell.com QAContact: qa@suse.de This was reported to vendor-sec but is public. From: Martin Pitt To: Vendor Security , "Steven M. Christey" Mail-Followup-To: Vendor Security , "Steven M. Christey" User-Agent: Mutt/1.5.13 (2006-08-11) Subject: [vendor-sec] missing PowerPC futex implementation leads to unkillable processes Errors-To: vendor-sec-admin@lst.de Date: Wed, 1 Nov 2006 09:20:34 +0100 Hi all, when building glibc 2.5 on powerpc, we noticed that this left behind zombie processes like fabbione 12745 17.5 0.0 0 0 ? Zl 13:41 80:58 [ld.so.1] <defunct> These were completely unkillable (even as root), hogged the CPU, and even prevented the machine from rebooting. Fabio Massimo Di Nitto and Benjamin Herrenschmidt tracked [1] this down to two bugs: - A syscall has been wired without the proper futex implementation that is leading to the main issue. This has already been fixed upstream in [2]. - The proper futex implementation was missing a fix for alignment check (kernel OOPS that we saw only in one specific case). The patch [3] has not yet been committed upstream. We would like to fix this in our stable kernel trees. Can we please get CVEs for these? Thank you! Martin [1] http://ozlabs.org/pipermail/linuxppc-dev/2006-October/027338.html [2] http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commi... [3] http://ozlabs.org/pipermail/linuxppc-dev/2006-October/027374.html -- Martin Pitt http://www.piware.de Ubuntu Developer http://www.ubuntu.com Debian Developer http://www.debian.org In a world without walls and fences, who needs Windows and Gates? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.