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Full vulnerability report · 2024
CVE-2022-48942High confidence

hwmon: Handle failure to register sensor with thermal zone correctly

Linux · Linux

5.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-53821

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: hwmon: Handle failure to register sensor with thermal zone correctly If an attempt is made to a sensor with a thermal zone and it fails, the call to devm_thermal_zone_of_sensor_register() may return -ENODEV. This may result in crashes similar to the following. Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd ... Internal error: Oops: 96000021 [#1] PREEMPT SMP ... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mutex_lock+0x18/0x60 lr : thermal_zone_device_update+0x40/0x2e0 sp : ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000 x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd Call trace: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c irq_thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02) Jon Hunter reports that the exact call sequence is: hwmon_notify_event() --> hwmon_thermal_notify() --> thermal_zone_device_update() --> update_temperature() --> mutex_lock() The hwmon core needs to handle all errors returned from calls to devm_thermal_zone_of_sensor_register(). If the call fails with -ENODEV, report that the sensor was not attached to a thermal zone but continue to register the hwmon device.

What

In the Linux kernel, the following vulnerability has been resolved: hwmon: Handle failure to register sensor with thermal zone correctly If an attempt is made to a sensor with a thermal zone and it fails, the call to devm_thermal_zone_of_sensor_register() may return -ENODEV. This may result in crashes similar to the following. Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd ... Internal error: Oops: 96000021 [#1] PREEMPT SMP ... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mutex_lock+0x18/0x60 lr : thermal_zone_device_update+0x40/0x2e0 sp : ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000 x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd Call trace: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c irq_thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02) Jon Hunter reports that the exact call sequence is: hwmon_notify_event() --> hwmon_thermal_notify() --> thermal_zone_device_update() --> update_temperature() --> mutex_lock() The hwmon core needs to handle all errors returned from calls to devm_thermal_zone_of_sensor_register(). If the call fails with -ENODEV, report that the sensor was not attached to a thermal zone but continue to register the hwmon device.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

In the Linux kernel, the following vulnerability has been resolved: hwmon: Handle failure to register sensor with thermal zone correctly If an attempt is made to a sensor with a thermal zone and it fails, the call to devm_thermal_zone_of_sensor_register() may return -ENODEV. This may result in crashes similar to the following. Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd ... Internal error: Oops: 96000021 [#1] PREEMPT SMP ... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mutex_lock+0x18/0x60 lr : thermal_zone_device_update+0x40/0x2e0 sp : ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000 x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd Call trace: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c irq_thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02) Jon Hunter reports that the exact call sequence is: hwmon_notify_event() --> hwmon_thermal_notify() --> thermal_zone_device_update() --> update_temperature() --> mutex_lock() The hwmon core needs to handle all errors returned from calls to devm_thermal_zone_of_sensor_register(). If the call fails with -ENODEV, report that the sensor was not attached to a thermal zone but continue to register the hwmon device.

Why

The product dereferences a pointer that it expects to be valid but is NULL.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → NULL Pointer Dereference → disrupt the affected service
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-476 ↗

CWE-476: NULL Pointer Dereference. The product dereferences a pointer that it expects to be valid but is NULL.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Denial of serviceCWE-476
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-1898Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder einen unspezifischen Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-1057Multiples vulnérabilités dans les produits VMware

d?id=CVE-2022-48913 Référence CVE CVE-2022-48914 https://www.cve.org/CVERecord?id=CVE-2022-48914 Référence CVE CVE-2022-48915 https://www.cve.org/CVERecord?id=CVE-2022-48915 Référence CVE CVE-2022-48921 https://www.cve.org/CVERecord?id=CVE-2022-48921 Référence CVE CVE-2022-48929 https://www.cve.org/CVERecord?id=CVE-2022-48929 Référence CVE CVE-2022-48931 https://www.cve.org/CVERecord?id=CVE-2022-48931 Référence CVE CVE-2022-48934 https://www.cve.org/CVERecord?id=CVE-2022-48934 Référence CVE CVE-2022-48938 https://www.cve.org/CVERecord?id=CVE-2022-48938 Référence CVE CVE-2022-48939 https://www.cve.org/CVERecord?id=CVE-2022-48939 Référence CVE CVE-2022-48942 https://www.cve.org/CVERecord?id=CVE-2022-48942 Référence CVE CVE-2022-48944 https://www.cve.org/CVERecord?id=CVE-2022-48944 Référence CVE CVE-2022-48946 https://www.cve.org/CVERecord?id=CVE-2022-48946 Référence CVE CVE-2022-48951 https://www.cve.org/CVERecord?id=CVE-2022-48951 Référence CVE CVE-2022-48953 https://www.cve.org/CVERecord?id=CVE-2022-48953 Référence CVE CVE-2022-48963 https://www.cve.org/CVERecord?id=CVE-2022-48963 Référence CVE CVE-2022-48969 https://www.cve.org/CVERecord?id=CVE-2022-48969 Référence CVE CVE-2022-48971 https://www.cve.org/CVERecord?id=CVE-2022-48971 Référence CVE CVE-2022-48972 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0840Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-48930 Référence CVE CVE-2022-48931 https://www.cve.org/CVERecord?id=CVE-2022-48931 Référence CVE CVE-2022-48932 https://www.cve.org/CVERecord?id=CVE-2022-48932 Référence CVE CVE-2022-48934 https://www.cve.org/CVERecord?id=CVE-2022-48934 Référence CVE CVE-2022-48937 https://www.cve.org/CVERecord?id=CVE-2022-48937 Référence CVE CVE-2022-48938 https://www.cve.org/CVERecord?id=CVE-2022-48938 Référence CVE CVE-2022-48939 https://www.cve.org/CVERecord?id=CVE-2022-48939 Référence CVE CVE-2022-48940 https://www.cve.org/CVERecord?id=CVE-2022-48940 Référence CVE CVE-2022-48941 https://www.cve.org/CVERecord?id=CVE-2022-48941 Référence CVE CVE-2022-48942 https://www.cve.org/CVERecord?id=CVE-2022-48942 Référence CVE CVE-2022-48943 https://www.cve.org/CVERecord?id=CVE-2022-48943 Référence CVE CVE-2023-1582 https://www.cve.org/CVERecord?id=CVE-2023-1582 Référence CVE CVE-2023-2176 https://www.cve.org/CVERecord?id=CVE-2023-2176 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-52458 https://www.cve.org/CVERecord?id=CVE-2023-52458 Référence CVE CVE-2023-52489 https://www.cve.org/CVERecord?id=CVE-2023-52489 Référence CVE CVE-2023-52498 https://www.cve.org/CVERecord?id=CVE-2023-52498 Référence CVE CVE-2023-52581 https://www.cve.org/CVERecord?id=CVE-20

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0822Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-48929 Référence CVE CVE-2022-48930 https://www.cve.org/CVERecord?id=CVE-2022-48930 Référence CVE CVE-2022-48931 https://www.cve.org/CVERecord?id=CVE-2022-48931 Référence CVE CVE-2022-48932 https://www.cve.org/CVERecord?id=CVE-2022-48932 Référence CVE CVE-2022-48934 https://www.cve.org/CVERecord?id=CVE-2022-48934 Référence CVE CVE-2022-48935 https://www.cve.org/CVERecord?id=CVE-2022-48935 Référence CVE CVE-2022-48937 https://www.cve.org/CVERecord?id=CVE-2022-48937 Référence CVE CVE-2022-48938 https://www.cve.org/CVERecord?id=CVE-2022-48938 Référence CVE CVE-2022-48941 https://www.cve.org/CVERecord?id=CVE-2022-48941 Référence CVE CVE-2022-48942 https://www.cve.org/CVERecord?id=CVE-2022-48942 Référence CVE CVE-2022-48943 https://www.cve.org/CVERecord?id=CVE-2022-48943 Référence CVE CVE-2023-52340 https://www.cve.org/CVERecord?id=CVE-2023-52340 Référence CVE CVE-2023-52489 https://www.cve.org/CVERecord?id=CVE-2023-52489 Référence CVE CVE-2023-52502 https://www.cve.org/CVERecord?id=CVE-2023-52502 Référence CVE CVE-2023-52581 https://www.cve.org/CVERecord?id=CVE-2023-52581 Référence CVE CVE-2023-52668 https://www.cve.org/CVERecord?id=CVE-2023-52668 Référence CVE CVE-2023-52688 https://www.cve.org/CVERecord?id=CVE-2023-52688 Référence CVE CVE-2023-52735 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0779Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2022-48932 Référence CVE CVE-2022-48933 https://www.cve.org/CVERecord?id=CVE-2022-48933 Référence CVE CVE-2022-48934 https://www.cve.org/CVERecord?id=CVE-2022-48934 Référence CVE CVE-2022-48935 https://www.cve.org/CVERecord?id=CVE-2022-48935 Référence CVE CVE-2022-48937 https://www.cve.org/CVERecord?id=CVE-2022-48937 Référence CVE CVE-2022-48938 https://www.cve.org/CVERecord?id=CVE-2022-48938 Référence CVE CVE-2022-48939 https://www.cve.org/CVERecord?id=CVE-2022-48939 Référence CVE CVE-2022-48940 https://www.cve.org/CVERecord?id=CVE-2022-48940 Référence CVE CVE-2022-48941 https://www.cve.org/CVERecord?id=CVE-2022-48941 Référence CVE CVE-2022-48942 https://www.cve.org/CVERecord?id=CVE-2022-48942 Référence CVE CVE-2022-48943 https://www.cve.org/CVERecord?id=CVE-2022-48943 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-52458 https://www.cve.org/CVERecord?id=CVE-2023-52458 Référence CVE CVE-2023-52489 https://www.cve.org/CVERecord?id=CVE-2023-52489 Référence CVE CVE-2023-52498 https://www.cve.org/CVERecord?id=CVE-2023-52498 Référence CVE CVE-2023-52581 https://www.cve.org/CVERecord?id=CVE-2023-52581 Référence CVE CVE-2023-52668 https://www.cve.org/CVERecord?id=CVE-2023-52668 Référence CVE CVE-2023-52688 https://www.cve.org/CVERecord?id=CV

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
1597b374af22266266e1e20612208c4b11359ad4 < 962b2a3188bfa5388756ffbc47dfa5ff59cb8011; 1597b374af22266266e1e20612208c4b11359ad4 < 7efe8499cb90651c540753f4269d2d43ede14223; 1597b374af22266266e1e20612208c4b11359ad4 < 8a1969e14ad93663f9a3ed02ccc2138da9956a0e; 1597b374af22266266e1e20612208c4b11359ad4 < 1b5f517cca36292076d9e38fa6e33a257703e62e; 5.8
Fixed
< 5.8; 5.10.103 ≤ 5.10.*; 5.15.26 ≤ 5.15.*; 5.16.12 ≤ 5.16.*; 5.17 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 22 Aug 2024 · Last source change 11 May 2026, 18:50 UTC · CWE-476 · NULL Pointer Dereference

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-53821
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-53821↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-48942 · cve.blacktree.nl