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NVD / CVE Program· CNA Linux

CVE-2026-64420: mfd: cros_ec: Delay dev_set_drvdata() until probe success

HighCVSS 7.0 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.11% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 24522713034d521ea4b5f5f36342e2b2f7e73bd6, 257203d83204b192d1265a916b42ca0d499bb117, 729ae27dc2503a7c1f92da1859efb45da03e4fa0.

Low priority for now. Upgrade to Linux Linux 24522713034d521ea4b5f5f36342e2b2f7e73bd6, 257203d83204b192d1265a916b42ca0d499bb117, 729ae27dc2503a7c1f92da1859efb45da03e4fa0 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: mfd: cros_ec: Delay dev_set_drvdata() until probe success If ec_device_probe() fails, cros_ec_class_release releases memory for the cros_ec_dev structure. However, because the drvdata was already set, sub-drivers like cros_ec_typec can still retrieve the stale pointer via the platform device. This leads to a use-after-free when cros_ec_typec attempts to access &typec->ec->ec->dev on a device that has already been released. Move dev_set_drvdata() to ensure that the pointer is only made available once all initialization steps have succeeded. sysfs: cannot create duplicate filename '/class/chromeos/cros_ec' Call trace: sysfs_do_create_link_sd+0x94/0xdc sysfs_create_link+0x30/0x44 device_add_class_symlinks+0x90/0x13c device_add+0xf0/0x50c ec_device_probe+0x150/0x4f0 platform_probe+0xa0/0xe0 ... BUG: KASAN: invalid-access in __memcpy+0x44/0x230 Write at addr f5ffff809e2d33ac by task kworker/u32:5/125 Pointer tag: [f5], memory tag: [fe] Tainted : [W]=WARN, [O]=OOT_MODULE Hardware name: Google Navi unprovisioned 0x7FFFFFFF/sku0 board/sku3 Workqueue: events_unbound deferred_probe_work_func Call trace: __memcpy+0x44/0x230 cros_ec_check_features+0x60/0xcc [cros_ec_proto] cros_typec_probe+0xe8/0x6e0 [cros_ec_typec] platform_probe+0xa0/0xe0

Published
Jul 25, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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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  • when exploit code appears or is weaponized
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  • 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.

VendorProduct
linuxlinux kernel

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

    • 4.12affected
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before 24522713034d521ea4b5f5f36342e2b2f7e73bd6affected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before f7e81dc181d9fe8ab977158042cd193e8cc12091affected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before 257203d83204b192d1265a916b42ca0d499bb117affected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before 729ae27dc2503a7c1f92da1859efb45da03e4fa0affected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before ed2941e5db016a0c600b25f1972620e6e223d9faaffected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before b5f41d5bf08e7b1b14fa0bd640975e6d78dc006daffected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before fc030c5b116f668d4ca86dca63742ddbc98d1665affected · git
    • 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b and later · before 8b2c1d41bc36c100b38ce5ee6def246c527eaf8aaffected · git
    • before 4.12not affected · semver
Affected versions · NVD (7)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.12 and later · before 5.10.261
  • linux linux kernel5.11 and later · before 5.15.212
  • linux linux kernel5.16 and later · before 6.1.178
  • linux linux kernel6.2 and later · before 6.6.145
  • linux linux kernel6.7 and later · before 6.12.96
  • linux linux kernel6.13 and later · before 6.18.39
  • linux linux kernel6.19 and later · before 7.1.4

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-64412Jul 25, 2026 · netfilter: ebtables: module names must be null-terminated
    28Monitor
  • ← EarlierCVE-2026-64413Jul 25, 2026 · netfilter: ebtables: zero chainstack array
    28Monitor
  • Later →CVE-2026-64422Jul 25, 2026 · net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes
    28Monitor

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 Linux24522713034d521ea4b5f5f36342e2b2f7e73bd6Vendor (CNA)
Linux Linux257203d83204b192d1265a916b42ca0d499bb117Vendor (CNA)
Linux Linux729ae27dc2503a7c1f92da1859efb45da03e4fa0Vendor (CNA)
Linux Linux8b2c1d41bc36c100b38ce5ee6def246c527eaf8aVendor (CNA)
Linux Linuxb5f41d5bf08e7b1b14fa0bd640975e6d78dc006dVendor (CNA)
Linux Linuxed2941e5db016a0c600b25f1972620e6e223d9faVendor (CNA)
Linux Linuxf7e81dc181d9fe8ab977158042cd193e8cc12091Vendor (CNA)
Linux Linuxfc030c5b116f668d4ca86dca63742ddbc98d1665Vendor (CNA)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~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.

No dated events beyond publication.

EPSS, last 120 days

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

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

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.

References

Show all references (7 more)

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

All records