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NVD / CVE Program· CNA Linux

CVE-2026-99219: ftrace: Initialize modname and offset in print_rec()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 0e5ff07be834abaf4280e1dca7f9591e339d0960, 7271c064dd60d4456c5b90da757acd9420d06697, 753d5cba113a52cb155428f4ea93a4b0148c4bf1.

Low priority for now. Upgrade to Linux Linux 0e5ff07be834abaf4280e1dca7f9591e339d0960, 7271c064dd60d4456c5b90da757acd9420d06697, 753d5cba113a52cb155428f4ea93a4b0148c4bf1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

—No exploit Fix available
Published
Nov 2, 2026
Updated
Nov 3, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.19affected
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before 753d5cba113a52cb155428f4ea93a4b0148c4bf1affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before 0e5ff07be834abaf4280e1dca7f9591e339d0960affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before e2e6fb972bfec4a0551bc7c185bdb17f78f94997affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before 8932e5a4df110a25578728526bb5a3dbc849d8a2affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before 7271c064dd60d4456c5b90da757acd9420d06697affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before d97dba9ff13987d1fc415408557a54adde980311affected · git
    • b39181f7c6907dc66ff937b74758671fa6ba430c and later · before e1f339ff3b83857b93baf8b88186275a413d445eaffected · git
    • before 5.19not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.115-16.12.115-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-99216Oct 28, 2026 · Drivers: hv: Don't reset VMBus connection state on error/exit paths
    33Monitor
  • ← EarlierCVE-2026-99218Nov 2, 2026 · coredump: hold RCU while releasing parked threads
    28Monitor
  • Later →CVE-2026-99220Nov 2, 2026 · asymmetric_keys: reject trust keys without IDs
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0e5ff07be834abaf4280e1dca7f9591e339d0960Vendor (CNA)
Linux Linux7271c064dd60d4456c5b90da757acd9420d06697Vendor (CNA)
Linux Linux753d5cba113a52cb155428f4ea93a4b0148c4bf1Vendor (CNA)
Linux Linux8932e5a4df110a25578728526bb5a3dbc849d8a2Vendor (CNA)
Linux Linuxd97dba9ff13987d1fc415408557a54adde980311Vendor (CNA)
Linux Linuxe1f339ff3b83857b93baf8b88186275a413d445eVendor (CNA)
Linux Linuxe2e6fb972bfec4a0551bc7c185bdb17f78f94997Vendor (CNA)
debian:linux6.12.115-1 · Debian:13Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 5, 2026+3 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓
  2. Exploit maturity— → none

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records