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CVE Record

CVE-2024-42153: i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr

In the Linux kernel, the following vulnerability has been resolved: i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr When del_timer_sync() is called in an interrupt context it throws a warning because of potential deadlock. The timer is used only to exit from wait_for_completion() after a timeout so replacing the call with wait_for_completion_timeout() allows to remove the problematic timer and its related functions altogether.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue is a reliability bug in the i2c-pnx driver. A timer cleanup function could run from interrupt context, creating a potential deadlock warning. The published sources do not provide CVSS, confirmed exploitation, or a clear business-impact scenario.

Executive priority

Schedule through normal Linux kernel maintenance unless affected hardware is business-critical or kernel logs show related instability. There is no source-backed evidence of active exploitation.

Technical view

CVE-2024-42153 changes i2c-pnx timeout handling by replacing a separate timer plus del_timer_sync() with wait_for_completion_timeout(). The issue is tied to del_timer_sync() being unsafe in interrupt context because it can warn about potential deadlock.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions with the i2c-pnx driver present or built into their kernel. Confirm against vendor kernel packages and backport status.

Exploitation context

The source bundle does not cite active exploitation, KEV listing, exploit code, privilege requirements, or remote attackability. Treat it as an availability or stability concern until vendor advisories clarify impact.

Researcher notes

The CVE record identifies a kernel concurrency issue, but lacks CVSS, CWE, exploit prerequisites, and concrete impact. Analysis should focus on driver reachability, interrupt-context call paths, and downstream patch mapping.

Mitigation direction

  • Check Linux distribution advisories for kernels containing the referenced stable fixes.
  • Prioritize updates for systems using the i2c-pnx driver or related hardware paths.
  • Apply vendor-supported kernel updates rather than manually cherry-picking unless standard practice.
  • Track Debian LTS guidance if Debian long-term support kernels are in scope.

Validation and detection

  • Inventory kernel versions and compare them with vendor fixed package versions.
  • Check whether the i2c-pnx driver is built, loaded, or used on target systems.
  • Review kernel logs for i2c-pnx warnings or timer/deadlock messages.
  • Confirm fixed stable commits or downstream backports are present after patching.
Prepared
Confidence
medium
Sources
11

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-2024-42153 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
2ADP providers
10Source 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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874eb, 41561f28e76a47dc6de0a954da85d0b5c42874ebunaffected
LinuxLinux2.6.20, 0, 4.19.318, 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10affected
Weakness

CWE details

No CWE listed

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