CVE intelligence

CVE-2026-99219

Vulnerability intelligence

Published Nov 2, 2026Sources checked Nov 5, 2026

N/ACVSS not listedScore unavailable

What this means

Review the available evidence

CVE-2026-99219. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Nov 4, 2026

Release Notes

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-99219?

In the Linux kernel, the following vulnerability has been resolved:

ftrace: Initialize modname and offset in print_rec()

print_rec() leaves 'modname' and 'offset' uninitialized and kallsyms_lookup() only sets them on success. When the lookup fails like when a module is being loaded or unloaded, 'modname' holds a garbage value, passes the 'if (modname)' check, and is dereferenced by seq_printf().

Oops: general protection fault RIP: 0010:string+0x48/0xe0 Call Trace: vsnprintf+0x1f5/0x650 seq_printf+0x8e/0xb0 print_rec+0x6c/0xc0 t_show+0x4c/0x440 seq_read_iter+0x119/0x480

This can be triggered by reading available_filter_functions while a module is being loaded or unloaded.

Initialize both variables so a failed lookup skips the module name.

Source: NVD