CVE-2026-64420 — CVE & Security Advisory Radar

🎯 CVE-2026-64420 HIGH 7.0 🔥 EPSS 12% 🇪🇺 EUVD

📄 .md Alle CVEs anzeigen ✕

CVE-2026-64420 | 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 devic

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

Klassifikation & Betroffenheit:

Linux Linux 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b <b5f41d5bf08e7b1b14fa0bd640975e6d78dc006dLinux patch: 5.15.212Linux 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b <24522713034d521ea4b5f5f36342e2b2f7e73bd6Linux patch: 7.1.4Linux patch: 7.2Linux patch: 0Linux 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b <fc030c5b116f668d4ca86dca63742ddbc98d1665Linux 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b <257203d83204b192d1265a916b42ca0d499bb117

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-74497 8.4 CVE-2026-74492 8.4 CVE-2026-74461 8.4 CVE-2026-74383 8.4 CVE-2026-74333 8.4

🩹 Patch verfügbar (OSV):

🩹 Kernel ≥ 5.10.261 🩹 Kernel ≥ 5.15.212 🩹 Kernel ≥ 6.1.178 🩹 Kernel ≥ 6.6.145 🩹 Kernel ≥ 6.12.96 🩹 Kernel ≥ 6.18.39

📰 Eigene Berichterstattung: ➔ CVE-2026-64420 | Linux Kernel up to 7.1.3 cros_ec ec_device_probe use after free

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 07/2026

Heute 05.09.

CVSS-Vektor-Analyse: 7.0

AV · Angriffsvektor Lokal

AC · Komplexität Hoch

PR · Privilegien Gering

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Hoch

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

Veröffentlicht:25.07.2026

Aktualisiert:04.09.2026 15:16

Assigner (CNA):Linux

EUVD-ID:EUVD-2026-48964

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

Tier	2026-08-29	2026-09-05
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

7.0 HIGH

🇪🇺 EUVD

EPSS

12%

CVE-2026-64420 💻 Lokal 🔑 Geringe Nutzerrechte nötig

Linux

CVE-2026-64420 | 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 devic

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

25.07.2026

🛡️ Details ➔

Zero-Day & Vulnerability Intelligence Hub