Date: Tue, 22 Feb 2011 11:04:56 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: Dan Rosenberg <dan.j.rosenberg@...il.com> Subject: Re: CVE request: kernel: btrfs heap overflow 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 http://git.kernel.org/linus/51788b1bdd0d68345bab0af4301e7fa429277228 Eugene
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.