Bug 2513400 (CVE-2026-68221)

Summary: CVE-2026-68221 kernel: media: nuvoton: npcm-video: fix memory leaks in probe and remove
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's Nuvoton NPCM video driver. The `npcm_video_probe()` function allocates memory that is not properly freed on error paths or during device removal, leading to memory leaks. Additionally, when `npcm_video_setup_video()` fails, associated reserved memory is not released. These issues can lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system.
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Description OSIDB Bzimport 2026-08-10 12:35:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: nuvoton: npcm-video: fix memory leaks in probe and remove

npcm_video_probe() allocates the npcm_video structure with kzalloc_obj()
but never frees it on any probe error path or in npcm_video_remove(),
leaking the allocation on every failed probe and every normal unbind.

Additionally, when npcm_video_setup_video() fails, the reserved memory
association established by of_reserved_mem_device_init() in
npcm_video_init() is not released, leaking the rmem_assigned_device
entry on the global list.

Fix both by adding kfree(video) to all probe error paths and to
npcm_video_remove(), and adding the missing
of_reserved_mem_device_release() call when npcm_video_setup_video()
fails.
Comment 1 Mauro Matteo Cascella 2026-08-11 18:43:07 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081015-CVE-2026-68221-104a@gregkh/T