Date: Thu, 29 Apr 2010 11:24:28 -0500 From: Mark Hatle <mark.hatle@...driver.com> To: Eugene Teo <eugene@...hat.com> CC: oss-security@...ts.openwall.com, "Zhu, Hui" <hui.zhu@...driver.com>, "Gortmaker, Paul" <paul.gortmaker@...driver.com>, +security-linux <security-linux@...driver.com>, "Wessel, Jason" <jason.wessel@...driver.com>, "Wu, Fei" <fei.wu@...driver.com> Subject: Re: [security-linux] Re: CVE request - Linux Kernel KGDB/ppc issue Eugene Teo wrote: > On 04/29/2010 10:13 AM, Hui Zhu wrote: >> Hi All, >> >> The problem is that if KGDB is enabled on a powerpc board, a >> test that checks if a page is user or kernel is bypassed. >> This means that a user can write to arbitrary kernel address space. >> >> Upon further investigation, we found that kernels older than >> the v2.6.30-rc1 release have the same problem for non-booke >> ppc chips (74xx, 8641D), so we need two patches for kernels >> up to that date, and then one patch for ones after that date. I'm sorry. This was a mistake on our part. We had intended to send the information to vendor-sec and coordinate with other potentially affected vendors. Then once a reasonable coordinated time had passed to send it to security@...nel.org as well as oss-security and lkml. Our standard procedure: * contact vendor-sec and coordinate with other affected vendors * send the information to the project specific security list * once public send the information to: * oss-security@...ts.openwall.com * other appropriate public project list(s) Mark Hatle Linux Security Incident Lead Wind River Systems > Hi Hui, > > Just FYI, oss-security is a public mailing list. I noticed you have > already cc'ed the KGDB maintainer. If you are trying to report a kernel > security issue that is neither fixed not disclosed previously AFAIK, you > might want to try CC'ing security@...nel.org and LKML. Drop LKML if you > want to keep it private for a short period of time. > > Thanks, Eugene
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