Bug 2570529 (CVE-2026-125230)

Summary: CVE-2026-125230 ffmpeg: FFmpeg: Denial of Service via integer overflow in pcm_rechunk filter
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. An integer overflow in the pcm_rechunk bitstream filter allows an attacker to cause a Denial of Service (DoS) by triggering a division-by-zero error. By tricking a user or system into processing a specially crafted media file declaring an unusually large channel count, an attacker can crash the application during audio stream conversion.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-11-10 20:05:01 UTC
FFmpeg through 9.0.2 contains an integer overflow vulnerability in the pcm_rechunk bitstream filter that allows attackers to trigger division by zero via a crafted channel count. Attackers can supply a file declaring a huge channel count that is remuxed into MXF, GXF or DAUD, overflowing sample_size and crashing the application.