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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98404: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 07de0b31dd64094cd7d25729beaf2ecae74daa72, 3fe8a33715265ecb24ca0bcd0a575c926da4277c, 45dc2788a5b0e1e2824d1f98af521bd3acc340d7; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 07de0b31dd64094cd7d25729beaf2ecae74daa72, 3fe8a33715265ecb24ca0bcd0a575c926da4277c, 45dc2788a5b0e1e2824d1f98af521bd3acc340d7; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create() Smatch complains that returning a NULL here will lead to a NULL pointer dereference in drm_mode_addfb2(). Return an error pointer instead.

—No exploit Fix available
Published
Oct 14, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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

    • 4.2affected
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 975f3cf302bb7d7336df4c630a7c07e12780ad10affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 07de0b31dd64094cd7d25729beaf2ecae74daa72affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 5eda6cda0031ba17559d56882353be39e568ec09affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 3fe8a33715265ecb24ca0bcd0a575c926da4277caffected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 974845d2535a250b180e62f9ed50284f312c01a3affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 45dc2788a5b0e1e2824d1f98af521bd3acc340d7affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before f1050a7d365283678b253828739d3866ae546a72affected · git
    • dc5698e80cf724770283e10414054662bdf6ccfa and later · before 94579f24e2b526a04eb41050af0ba018c6f528e7affected · git
    • before 4.2not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.7-17.2.7-1
openSUSE:Tumbleweedkernel-sourcebefore 7.2.11-1.17.2.11-1.1

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-2026-98402Oct 14, 2026 · net: icmp: avoid invalid transport header access in icmp_send tracepoint
    0Monitor
  • ← EarlierCVE-2026-98403Oct 14, 2026 · s390/boot: Avoid IPL parameter append past command line
    0Monitor
  • Later →CVE-2026-98405Oct 14, 2026 · smb: client: fix missing iov bounds check in parse_posix_sids()
    32Monitor

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 Linux07de0b31dd64094cd7d25729beaf2ecae74daa72Vendor (CNA)
Linux Linux3fe8a33715265ecb24ca0bcd0a575c926da4277cVendor (CNA)
Linux Linux45dc2788a5b0e1e2824d1f98af521bd3acc340d7Vendor (CNA)
Linux Linux5eda6cda0031ba17559d56882353be39e568ec09Vendor (CNA)
Linux Linux94579f24e2b526a04eb41050af0ba018c6f528e7Vendor (CNA)
Linux Linux974845d2535a250b180e62f9ed50284f312c01a3Vendor (CNA)
Linux Linux975f3cf302bb7d7336df4c630a7c07e12780ad10Vendor (CNA)
Linux Linuxf1050a7d365283678b253828739d3866ae546a72Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
opensuse:kernel-source7.2.11-1.1 · openSUSE:TumbleweedPackage 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+22 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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

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

References

Show all references (7 more)

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

All records