What’s Vulnerable › Vulnerabilities

CVE-2026-97418: ALSA: es18xx: check control allocation before private data setup

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-10-03

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: es18xx: check control allocation before private data setup snd_es18xx_mixer() creates controls with snd_ctl_new1() and then stores bookkeeping pointers or sets private_free before calling snd_ctl_add(). snd_ctl_new1() can return NULL on allocation failure, so those writes can dereference a NULL control pointer. Check the returned control pointers before using them and return -ENOMEM on allocation failure.

Affected products

• Linux kernel: 2.6.12 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3d8adddf4e4a5a43847ee62e5e78ba05e756bdef
• https://git.kernel.org/stable/c/422e42b7c2b882ba1d16d4afc8891bcea7c4de93
• https://git.kernel.org/stable/c/908323ed61d5e7ad74889524d327cfb6a65ec8df
• https://git.kernel.org/stable/c/91c97a7969dae976de954453ab6e925e6522fecb
• https://git.kernel.org/stable/c/978079238f40f1a08ddb12ce208c484246f6a1b0
• https://git.kernel.org/stable/c/d88c24b76f285df9d206751e22c28e2613258cb3
• https://git.kernel.org/stable/c/e6c84fe4cf6f98f7b1ad446a42cfcb46bae83f66

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