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CVE Record

CVE-2022-48841: ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats()

In the Linux kernel, the following vulnerability has been resolved: ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats() It is possible to do NULL pointer dereference in routine that updates Tx ring stats. Currently only stats and bytes are updated when ring pointer is valid, but later on ring is accessed to propagate gathered Tx stats onto VSI stats. Change the existing logic to move to next ring when ring is NULL.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-48841 is a Linux kernel bug in the ice network driver where statistics handling can dereference a missing Tx ring pointer. The source describes a NULL pointer dereference, which generally means a potential kernel crash or service disruption, but it does not provide severity, CVSS, or attack conditions.

Executive priority

Treat this as a targeted stability risk, not a confirmed widespread exploitation emergency. Prioritize patch validation for Linux systems that rely on the ice driver, especially production network infrastructure, once distribution guidance confirms affected packages.

Technical view

The resolved issue is in ice_update_vsi_tx_ring_stats(). Existing logic updated stats only when the ring pointer was valid, but later still accessed the ring while propagating Tx stats to VSI stats. The fix skips to the next ring when the ring pointer is NULL.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions or commits with the ice driver code path present. The bundle lists Linux 5.16, 5.16.17, and 5.17-related affected entries, but exact range semantics are incomplete.

Exploitation context

The provided sources do not report active exploitation, public exploit code, or inclusion in CISA KEV. They also do not describe whether triggering the vulnerable stats path requires local access, traffic conditions, specific hardware, or administrative privileges.

Researcher notes

The public bundle confirms root cause and fix direction but omits CVSS, CWE, trigger prerequisites, and precise version-range semantics. Analysis should avoid assuming remote exploitability or privilege requirements without vendor advisory detail.

Mitigation direction

  • Apply the relevant Linux stable kernel fix from vendor or distribution channels.
  • Prioritize systems using the ice network driver on affected kernel lines.
  • Check distribution advisories for backported fixes and exact package versions.
  • If patching is delayed, monitor affected hosts for kernel crashes or driver instability.

Validation and detection

  • Inventory Linux kernel versions across servers and appliances.
  • Identify systems loading or packaging the ice network driver.
  • Confirm vendor kernels include commits 2397270ec97c or f153546913ba, or equivalent backports.
  • Review kernel logs for ice driver NULL pointer or crash indicators.
Prepared
Confidence
medium
Sources
4

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

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CVE-2022-48841 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
3Source 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
LinuxLinuxe72bba21355dbb67512a0d666fec9f4b56dbfc2f, e72bba21355dbb67512a0d666fec9f4b56dbfc2funaffected
LinuxLinux5.16, 0, 5.16.17, 5.17affected
Weakness

CWE details

No CWE listed

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