Linux Kernel up to 6.12.105/6.18.46/7.1.10/7.2.0 HID Nintendo joycon_input_create null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.8$0-$5k1.24-

Summaryinfo

A vulnerability classified as very critical was found in Linux Kernel up to 6.12.105/6.18.46/7.1.10/7.2.0. The affected element is the function joycon_input_create of the component HID Nintendo. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2026-80771. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.105/6.18.46/7.1.10/7.2.0. It has been rated as very critical. Affected by this issue is the function joycon_input_create of the component HID Nintendo. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: register input device after capabilities are set input_register_device() exposes the device to userspace immediately. In joycon_input_create() it was called before joycon_config_rumble() configures the FF_RUMBLE capability and the memless force-feedback device, so a concurrent EVIOCSFF could dereference a NULL dev->ff. Registering early also means the initial udev event lacks button and axis information, which can make input managers ignore the device. Move input_register_device() to the end of joycon_input_create(), after all capabilities, the IMU input device and the force-feedback callbacks have been configured.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-80771 since 08/26/2026. The exploitation is known to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/04/2026).

Upgrading to version 6.12.106, 6.18.47, 7.1.11, 7.2.1 or 7.3-rc1 eliminates this vulnerability. Applying the patch 3288bec1a21d582b504344380139cdc0e88ebe4d/268679f501386ad46405d42c2bcf89384cb5e256/a9fc7547f911ada09da33c5e204e5acda38e765a/27dc4b8eadac73b3c3cc526c8547d8b4ae8528be/d723bc1fe2e72b9252234e94c11af644ec477bf7 is able to eliminate this problem.

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Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.8

VulDB Base Score: 8.2
VulDB Temp Score: 7.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.106/6.18.47/7.1.11/7.2.1/7.3-rc1
Patch: 3288bec1a21d582b504344380139cdc0e88ebe4d/268679f501386ad46405d42c2bcf89384cb5e256/a9fc7547f911ada09da33c5e204e5acda38e765a/27dc4b8eadac73b3c3cc526c8547d8b4ae8528be/d723bc1fe2e72b9252234e94c11af644ec477bf7

Timelineinfo

08/26/2026 CVE reserved
09/04/2026 +9 days Advisory disclosed
09/04/2026 +0 days VulDB entry created
09/04/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80771 (🔒)
GCVE (CVE): GCVE-0-2026-80771
GCVE (VulDB): GCVE-100-398888

Entryinfo

Created: 09/04/2026 17:58
Changes: 09/04/2026 17:58 (59)
Complete: 🔍
Cache ID: 216::103

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