CVE-2026-98053 ASoC: Intel: avs: Refactor and fix init_config access
An out-of-bounds read in the Intel AVSoC audio driver allows attackers to cause a denial of service or leak kernel memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98053?
CVE-2026-98053 is a medium-severity vulnerability in Linux kernel, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-98053?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-98053?
Apply the vendor's patch.
Is CVE-2026-98053 being exploited?
There is no known exploitation of CVE-2026-98053 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-98053, DEBIAN-CVE-2026-98053, GHSA-xpmc-f98f-h67j, UBUNTU-CVE-2026-98053.