Bug 1718176 (CVE-2019-12614)

Summary: CVE-2019-12614 kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c causing denial of service
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, airlied, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, fhrbata, hdegoede, hkrzesin, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, mchehab, mjg59, mlangsdo, nmurray, plougher, rvrbovsk, steved, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 1718185    
Bug Blocks: 1718183    

Description Dhananjay Arunesh 2019-06-07 08:07:17 UTC
An issue was discovered in dlpar_parse_cc_property in
arch/powerpc/platforms/pseries/dlpar.c in the Linux kernel through 5.1.6. There
is an unchecked kstrdup of prop->name, which might allow an attacker to cause a
denial of service (NULL pointer dereference and system crash).

Reference:
https://lkml.org/lkml/2019/6/3/526

Upstream commit:
https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=efa9ace68e487ddd29c2b4d6dd23242158f1f607

Comment 1 Dhananjay Arunesh 2019-06-07 08:18:31 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1718185]