Bug 2057506 (CVE-2022-0998)

Summary: CVE-2022-0998 kernel: an integer overflow in the vhost_vdpa_config_validate() can lead to out-of-bounds access on top of a 32-bit Linux kernel
Product: [Other] Security Response Reporter: Alex <allarkin>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, adscvr, airlied, alciregi, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, vkumar, walters, williams, zulinx86
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Linux kernel 5.17-rc1 Doc Type: If docs needed, set a value
Doc Text:
An integer overflow flaw was found in the Linux kernel’s virtio device driver code in the way a user triggers the vhost_vdpa_config_validate function. This flaw allows a local user to crash or potentially escalate their privileges on the system.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2022-03-15 20:31:22 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2066317    
Bug Blocks: 2054799    

Description Alex 2022-02-23 14:35:32 UTC 
An out of bounds (OOB) memory access flaw was found in the Linux Kernel's guest virtio device driver code (if this code enabled with the CONFIG_VHOST_VDPA kernel config parameter).
An integer overflow in the vhost_vdpa_config_validate function can lead to out-of-bounds access on top of a 32-bit linux kernel.

Reference:
https://lore.kernel.org/netdev/20220123001216.2460383-13-sashal@kernel.org/
Comment 3 Guilherme de Almeida Suckevicz 2022-03-21 13:37:58 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2066317]
Comment 4 Justin M. Forbes 2022-03-23 14:22:42 UTC 
This was fixed for Fedora with the 5.16.x kernel rebases.