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CVE Record

CVE-2022-48915: thermal: core: Fix TZ_GET_TRIP NULL pointer dereference

In the Linux kernel, the following vulnerability has been resolved: thermal: core: Fix TZ_GET_TRIP NULL pointer dereference Do not call get_trip_hyst() from thermal_genl_cmd_tz_get_trip() if the thermal zone does not define one.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-48915 is a Linux kernel thermal subsystem bug. A specific thermal-zone query can hit a NULL pointer when hardware or drivers do not provide a hysteresis callback. The public record does not provide CVSS, confirmed exploitation, or broad impact details.

Executive priority

Handle through normal kernel patch management unless vendor guidance rates your platform higher. There is no public evidence of active exploitation in the provided sources, but kernel NULL pointer bugs can affect system availability and should not be ignored on shared or critical Linux systems.

Technical view

The fix prevents thermal_genl_cmd_tz_get_trip() from calling get_trip_hyst() when the thermal zone lacks that operation. The issue is documented as a NULL pointer dereference in Linux thermal core. Kernel stable commits are referenced as the resolution.

Likely exposure

Exposure is limited to Linux systems running affected kernel versions with thermal zones that do not define get_trip_hyst(). The source lists Linux kernel version markers including 5.9, 5.10.104, 5.15.27, 5.16.13, and 5.17, but range interpretation should be confirmed against vendor kernels.

Exploitation context

No CISA KEV listing is provided, and the source bundle gives no evidence of active exploitation. The record does not describe required privileges, remote reachability, or practical exploit conditions. Treat this primarily as a kernel stability and availability concern pending vendor-specific guidance.

Researcher notes

The public CVE data is sparse: no CVSS, CWE, exploitability assessment, or privilege model is included. Analysis should focus on downstream kernel backports, whether relevant thermal zones lack get_trip_hyst(), and whether accessible thermal generic-netlink paths exist on the target platform.

Mitigation direction

  • Check Linux distribution or appliance vendor advisories for CVE-2022-48915 applicability.
  • Upgrade affected kernels to vendor-supported builds containing the referenced stable fixes.
  • Prioritize systems where untrusted users can interact with kernel thermal interfaces.
  • Include embedded, appliance, and virtualization host kernels in the inventory.

Validation and detection

  • Record kernel versions across Linux fleets and compare with vendor advisories.
  • Check vendor changelogs for the referenced thermal core fix.
  • Confirm patched kernels include one of the linked stable commits or downstream equivalents.
  • Monitor vendor security notices for updated severity or exposure details.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2022-48915 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
1ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1ce50e7d408ef2bdc8ca021363fd46d1b8bfad00, 1ce50e7d408ef2bdc8ca021363fd46d1b8bfad00, 1ce50e7d408ef2bdc8ca021363fd46d1b8bfad00, 1ce50e7d408ef2bdc8ca021363fd46d1b8bfad00unaffected
LinuxLinux5.9, 0, 5.10.104, 5.15.27, 5.16.13, 5.17affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.