CVE-2026-90312 Linux Kernel - Type Confusion

Linux kernel contains a type confusion vulnerability in BPF load-acquire operations caused by improper source pointer type validation, letting attackers access raw kernel objects, exploit requires BPF program with specific load-acquire instructions.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to the latest Linux kernel version containing the fix for BPF load-acquire source pointer validation.

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

← All CVEs