Bug 2395882 (CVE-2023-53309)

Summary: CVE-2023-53309 kernel: Linux kernel: Denial of Service via integer overflow in radeon_cs_parser_init
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the Linux kernel's drm/radeon component. A local attacker with low privileges could exploit an integer overflow vulnerability in the radeon_cs_parser_init function. This flaw causes a size variable to become zero, leading to the referencing of uninitialized memory. This can result in a system crash, causing a denial of service (DoS).
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-09-16 17:03:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/radeon: Fix integer overflow in radeon_cs_parser_init

The type of size is unsigned, if size is 0x40000000, there will be an
integer overflow, size will be zero after size *= sizeof(uint32_t),
will cause uninitialized memory to be referenced later
Comment 1 Jon Moroney 2025-09-16 17:45:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091642-CVE-2023-53309-005a@gregkh/T