intelligence_src_350d40f2cc69277bca
- Source-provided label
- Publisher RSS metadata
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Dec 14, 2021 00:00 UTC
- Retrieved
- Oct 13, 2026 08:35 UTC
CVE-2021-25452: Kernel Permanent Denial of Service Vulnerability in the Vision DSP Kernel Driver
There is a memory management and a path traversal vulnerability in the vision DSP kernel driver of Exynos S20 devices. These vulnerabilities can be leveraged by a malicious untrusted application to permanently disable the device until it is factory reset. Vulnerability Details The Exynos DSP driver implements an ioctl call that allows applications to upload a custom model (graph) for the dsp device. The DSP_IOC_LOAD_GRAPH ioctl handler of the /dev/dsp device receives an array of names of the graph binaries to be loaded. The dsp_kernel_alloc function appends the “.elf” extension to the user-supplied name then uses the kernel’s request firmware API to load it from the file system.
Reference details
- Source category
- research-report
- First reported
- Dec 14, 2021 00:00 UTC
- Last reported
- Dec 14, 2021 00:00 UTC
- Catalog updated
- Oct 13, 2026 08:35 UTC
- Record ID
b469c51db41ab7e8a41e65867d38e33e72fa4ab3ccd53094af2b351d84bc3e59
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1 sources: 0 stale, 0 needing attention, 0 paused, 0 unverified.
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