Linux vulnerability

What happened

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 versions

Linux: 8a49ef789b1be68242624d460df2ada8087308a7 through before 75bd5ea9c858d89fb8862f23afb00783bf02cd7a (git); 8a49ef789b1be68242624d460df2ada8087308a7 through before 8f20a0f4f7d638e83ae86db1719a24c7049762f5 (git); 8a49ef789b1be68242624d460df2ada8087308a7 through before 681e91035dc794896a904852040837190e5041f5 (git); 6.9 Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.