CVE-2026-72300
Low risk· EPSS 10%Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
In the Linux kernel, the sof_parse_token_sets() function lacks validation of the vendor array size before reading it. A malformed topology with a truncated trailing array can cause out-of-bounds read. Additionally, comparison with negative size can pass due to unsigned promotion.
Risk Assessment
This could lead to out-of-bounds read, potentially causing system crash or privilege escalation.
Recommendation
Apply the kernel patch that validates a complete snd_soc_tplg_vendor_array header before reading array->size and casts sizeof(*array) to int.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: topology: validate vendor array size before parsing sof_parse_token_sets() reads array->size while iterating over topology private data. The loop condition only checks that some data remains, so a malformed topology with a truncated trailing vendor array can make the parser read the size field before a full vendor-array header is available. Validate that the remaining private data contains a complete snd_soc_tplg_vendor_array header before reading array->size. The declared array size check also needs to remain signed. asize is an int, but sizeof(*array) has type size_t, so comparing them directly promotes negative asize values to unsigned and lets them pass the check, as reported in the stable review thread reference below. Cast sizeof(*array) to int when validating the declared array size. This rejects negative, zero and otherwise too-small sizes before the parser dispatches to the tuple-specific code.