Bug 1763844 (CVE-2019-15923)

Summary: CVE-2019-15923 kernel: null pointer dereference in drivers/block/paride/pf.c
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
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Priority: low    
Version: unspecifiedCC: acaringi, airlied, bdettelb, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jschorr, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, steved, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Bug Depends On: 1763845    
Bug Blocks: 1763846    

Description Guilherme de Almeida Suckevicz 2019-10-21 17:57:25 UTC
An issue was discovered in the Linux kernel before 5.0.9. There is a NULL pointer dereference for a cd data structure if alloc_disk fails in drivers/block/paride/pf.c.

Reference:
https://github.com/torvalds/linux/commit/f0d1762554014ce0ae347b9f0d088f2c157c8c72

Comment 1 Guilherme de Almeida Suckevicz 2019-10-21 17:57:44 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1763845]

Comment 2 Justin M. Forbes 2019-10-22 12:54:04 UTC
This was fixed for Fedora with the 5.0.9 stable kernel update.