more details: http://isec.pl/vulnerabilities/isec-0012-mremap.txt seems to affect 2.2, 2.4, and 2.6 series Reproducible: Always Steps to Reproduce:
forgot this in the details field: http://kernel.org/pub/linux/kernel/v2.4/testing/patch-2.4.24.log
- 2.4.24-rc1 was released as 2.4.24 with no changes. http://marc.theaimsgroup.com/?l=linux-kernel&m=107331127632230&w=2 seems to be critical
Created attachment 23184 [details, diff] Patch that fix the vulnerability I have extracted this patch from the 2.4.23 -> 2.4.24-rc1 changes. Marcelo Tosatti has released 2.4.24 because of this vulnerability. So it may be a better idea to upgrade to 2.4.24 instead of backporting the patch.
Here is the official diff from kernel.org http://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv2.4%2Fpatch-2.4.24.bz2;z=16 Matches your patch (did you take it from kernel.org?), so this link is just for completion.
*** This bug has been marked as a duplicate of 37292 ***