Bug 1085415 (CVE-2014-2739)

Summary: CVE-2014-2739 Kernel: IB/core: crash while resolving passive side RoCE L2 address in cma req handler
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: agordeev, anton, aquini, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jkurik, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mchehab, mcressma, npajkovs, pholasek, plougher, rt-maint, rvrbovsk, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-16 13:24:09 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1082033    

Description Prasad Pandit 2014-04-08 14:32:33 UTC
Linux kernel built with the InfiniBand communication link(CONFIG_INFINIBAND)
along with the support for Remote Direct Memory Access(RDMA) over Convered
Ethernet(RoCE), is vulnerable to a crash caused by invalid memory access.
It occurs while trying to resolve RoCE L2 address on the server side.

A remote unprivileged user/program could use this flaw to crash the kernel,
resulting in DoS.

Upstream fix:
  -> http://git.kernel.org/linus/b2853fd6c2d0f383dbdf7427e263eb576a633867

Issue introduced by commit:
 -> https://git.kernel.org/linus/dd5f03beb4f76ae65d76d8c22a8815e424fc607c

Comment 2 Prasad Pandit 2014-04-10 11:41:58 UTC

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.