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

CVE-2026-98833: mtd: core: call _get_device() with the master MTD

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 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1, 522e821e41654eb06d2f21ac78a0f22fb6b198c2, 95c8f36293c22d450c371167ad4f9a5bbadc7539; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1, 522e821e41654eb06d2f21ac78a0f22fb6b198c2, 95c8f36293c22d450c371167ad4f9a5bbadc7539; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 Release Notes 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: mtd: core: call _get_device() with the master MTD __get_mtd_device() calls the master's _get_device() callback with mtd, which may be a partition. __put_mtd_device() passes the master. This breaks gluebi partitions because gluebi_get_device() uses container_of() and therefore requires the master MTD. Pass the master to _get_device(), matching _put_device().

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 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%

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

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Follow CVE-2026-98833

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

    • 5.7affected
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before 522e821e41654eb06d2f21ac78a0f22fb6b198c2affected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before e7e37358408b0690c367cf38aec81a9b7e2475b5affected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before d94731cafa57e2c986ff391122d1494e5a3f3c3faffected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before 95c8f36293c22d450c371167ad4f9a5bbadc7539affected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before f971f1c63cf71579258360a12bd185bc1cd1a043affected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before dc482a281a19a7d7e91ad1b2d551bb301c54d0e6affected · git
    • 46b5889cc2c54bac7d7e727a44d28a298df23cef and later · before 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1affected · git
    • before 5.7not affected · semver
    • 5.15.224 and later · up to and including 5.15.*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:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98831Oct 18, 2026 · of/overlay: don't leak fragment references when changeset init fails
    0Monitor
  • ← EarlierCVE-2026-98832Oct 18, 2026 · blk-cgroup: save IRQ state in blkg_tryget_closest()
    0Monitor
  • Later →CVE-2026-98834Oct 18, 2026 · mtd: core: avoid double-free of OTP NVMEM device
    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 Linux12b31d1acd20b3185bb5f0748db0cf6874c8e9d1Vendor (CNA)
Linux Linux522e821e41654eb06d2f21ac78a0f22fb6b198c2Vendor (CNA)
Linux Linux95c8f36293c22d450c371167ad4f9a5bbadc7539Vendor (CNA)
Linux Linuxd94731cafa57e2c986ff391122d1494e5a3f3c3fVendor (CNA)
Linux Linuxdc482a281a19a7d7e91ad1b2d551bb301c54d0e6Vendor (CNA)
Linux Linuxe7e37358408b0690c367cf38aec81a9b7e2475b5Vendor (CNA)
Linux Linuxf971f1c63cf71579258360a12bd185bc1cd1a043Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.159.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package 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 7, 2026+19 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. Exploit maturity— → none
  2. Fix✗ → ✓

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