CVE-2026-98116 Linux Kernel ALSA PCM - Use After Free

Linux kernel ALSA PCM contains a use-after-free vulnerability caused by a race condition in buffer reallocation and mmap handling, letting local attackers achieve privilege escalation, exploit requires local access.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.13% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/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 ALSA PCM mmap serialization 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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