CVE-2026-89882 Linux Kernel media rkvdec - Out of Bounds Read

Linux kernel media rkvdec HEVC decoder contains a buffer underflow caused by improper index calculation in INTER_REF_PIC_SET_PRED, letting local userspace attackers cause out-of-bounds read, exploit requires access to RKVDEC m2m decoder.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 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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