CVE-2026-98041 Linux Kernel - Logic Flaw in BPF JMP32 Pointer Comparison

Linux kernel contains a logic flaw in BPF verifier's handling of JMP32 pointer versus zero comparisons, causing incorrect jump prediction, letting attackers potentially bypass verification, exploit requires crafted BPF programs.

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

Details

Type
Logic Flaw in BPF JMP32 Pointer Comparison
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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