CVE-2026-98053: ASoC: Intel: avs: Refactor and fix init_config access

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-25 · updated 2026-10-21
Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Refactor and fix init_config access Existing code accesses enties found in ->init_configs array through indexes that are part of ->config_ids array. Those two are limited by: ->num_init_configs and ->num_config_ids respectively. Using ID larger or equal to ->num_init_configs leads to out-of-bounds access: avs_path_module_send_init_configs() loop: (...) &acomp->tplg->init_configs[ids[i]] ^ out-of-bounds candidate Rather than adding another if-statement, refactor the code. There is no need to store the IDs, have a list of pointers to actual config-entries instead. As the verification of ->init_config entries does not differ from verification of other types that are part of the topology.c file, simply reuse the code.

Affected products

Linux kernel: from 6.9 before 6.18.53; from 6.19 before 7.2.7; 7.3-rc1, 7.3-rc2 — fixed in 6.18.53, 7.2.7

How to fix

Upgrade to a fixed version: Linux kernel 6.18.53, 7.2.7. Check the vendor advisory for mitigations.

References

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