Bug 2519667

Summary: CVE-2026-64832 ffmpeg: FFmpeg: Arbitrary code execution via crafted video file in NVDEC hardware decoder [fedora-43]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: ffmpegAssignee: Multimedia SIG <multimedia-sig>
Status: ASSIGNED --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 43CC: asn, development.group, dominik, multimedia-sig, ngompa13
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["9d369134-3f14-4a42-9f7c-080a9cf8f940"]}
Fixed In Version: ffmpeg-9.0.1-1.fc46,ffmpeg-9.0.1-4.fc45,ffmpeg-8.1.3-1.fc44 Doc Type: ---
Doc Text:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2506189    

Description Ganesh 2026-08-19 14:53:13 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ff_nvdec_start_frame_sep_ref error path frees memory via nvdec_fdd_priv_free while the calling layer subsequently frees the same frame description data, resulting in a double-free of the underlying decoder context in any FFmpeg-based application using NVDEC hardware-accelerated decoding.
Comment 1 Dominik 'Rathann' Mierzejewski 2026-08-25 10:02:29 UTC 
*** Bug 2519668 has been marked as a duplicate of this bug. ***
Comment 2 Dominik 'Rathann' Mierzejewski 2026-08-25 10:19:02 UTC 
This is fixed by
master: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/7f0b6476b6ef2d07d163a7d3229f8c9e250112b5
9.0: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/3d5ad47c40436dbdeaaa6601af0bb4575d5aa3c5
8.1: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9cbcf979a587a66b280496657d00fabe301bf20f

7.1 and 5.1 are affected.
Comment 3 Fedora Update System 2026-09-28 16:40:07 UTC 
FEDORA-2026-3e109a0c85 (ffmpeg-8.1.3-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3e109a0c85
Comment 4 Fedora Update System 2026-09-29 02:11:16 UTC 
FEDORA-2026-3e109a0c85 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3e109a0c85`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3e109a0c85

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 5 Fedora Update System 2026-10-01 01:12:22 UTC 
FEDORA-2026-3e109a0c85 (ffmpeg-8.1.3-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.