Bug 2516496 (CVE-2026-72276)

Summary: CVE-2026-72276 kernel: fbdev: metronomefb: fix potential memory leak in metronomefb_probe()
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: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the `metronomefb` framebuffer driver within the Linux kernel. This vulnerability occurs because memory allocated for page references is not properly released when an error occurs during initialization. A local attacker could potentially exploit this to cause a denial of service due to excessive memory consumption.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-15 06:15:34 UTC 
In the Linux kernel, the following vulnerability has been resolved:

fbdev: metronomefb: fix potential memory leak in metronomefb_probe()

The memory allocated for pagerefs in fb_deferred_io_init() is not freed
on the error path. Fix it by calling fb_deferred_io_cleanup().
Comment 1 gkamathe 2026-08-18 13:58:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081557-CVE-2026-72276-aa14@gregkh/T