CVE-2026-97931 Linux Kernel ALSA us122l - Privilege Escalation

Linux kernel ALSA us122l contains a privilege escalation vulnerability caused by improper handling of VM_MAYWRITE flag in hwdep mmap callback, letting local attackers with O_RDWR access escalate privileges by making read mappings writable, exploit requires local access with O_RDWR permissions.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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