Date: Wed, 9 Feb 2011 11:27:13 -0500 From: Stéphane Gaudreault <stephane@...hlinux.org> To: oss-security@...ts.openwall.com Subject: Re: CVE request: kernel: btrfs heap overflow ArchLinux support 2.6.37, although it is not commercial. Stéphane Le 9 février 2011 10:49:35, Dan Rosenberg a écrit : > I'm not aware of any distributions that support 2.6.37 kernels, but as > far as I know this doesn't affect CVE eligibility (please correct me > if I'm wrong). > > -Dan > > On Wed, Feb 9, 2011 at 10:20 AM, Eugene Teo <eugene@...hat.com> wrote: > > On 02/09/2011 10:27 PM, Dan Rosenberg wrote: > >> Commit bf5fc093c5b625e4259203f1cee7ca73488a5620 refactored > >> btrfs_ioctl_space_info() and introduced security issues. Since they > >> were all introduced at once and fixed at the same time, one CVE should > >> suffice. > >> > >> Due to integer truncation or a signedness error in a typecasted > >> comparison, an integer overflow in an allocation size calculation, and > >> a failure to properly check bounds when copying data, it was possible > >> for an unprivileged user to cause a denial-of-service due to writing > >> to an invalid pointer (ZERO_SIZE_PTR) or cause a kernel heap overflow. > >> > >> -Dan > >> > >>  http://marc.info/?l=linux-kernel&m=129726078708425&w=2 > > > > Commit bf5fc093c was introduced very recently - v2.6.37-rc1 Sept last > > year. Do we have commercially supported kernels that are affected by > > this? > > > > Thanks, Eugene
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