Medium severity5.5NVD Advisory· Published Sep 16, 2025· Updated Jun 17, 2026

CVE-2023-53266

Description

In the Linux kernel, the following vulnerability has been resolved:

arm64: acpi: Fix possible memory leak of ffh_ctxt

Allocated 'ffh_ctxt' memory leak is possible if the SMCCC version and conduit checks fail and -EOPNOTSUPP is returned without freeing the allocated memory.

Fix the same by moving the allocation after the SMCCC version and conduit checks.

Affected products

Linux/Kernelllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: 6.2
osv-coords
pkg:linux/kernel
Range: >= 6.2.0, < 6.2.3

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/1b561d3949f8478c5403c9752b5533211a757226nvdPatch
git.kernel.org/stable/c/7521da2eb42d65f89f511b7912d3757cf3d9168anvdPatch

News mentions

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
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ransomware	0.000