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CVE Record

CVE-2022-48930: RDMA/ib_srp: Fix a deadlock

In the Linux kernel, the following vulnerability has been resolved: RDMA/ib_srp: Fix a deadlock Remove the flush_workqueue(system_long_wq) call since flushing system_long_wq is deadlock-prone and since that call is redundant with a preceding cancel_work_sync()

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-48930 is a Linux kernel deadlock issue in the RDMA ib_srp driver. A deadlock can make affected kernel work stop progressing, creating an availability risk on systems using this driver. The source bundle does not provide CVSS, exploit evidence, or vendor-specific impact details.

Executive priority

Handle through normal kernel patch governance, with higher priority for infrastructure that depends on RDMA or SRP storage paths. Current sources do not justify emergency response, but kernel deadlocks can create business-impacting outages on exposed workloads.

Technical view

The fix removes flush_workqueue(system_long_wq) from RDMA/ib_srp because flushing system_long_wq is deadlock-prone and redundant after cancel_work_sync(). The CVE record lists Linux kernel versions and multiple stable commit references, but does not describe a remote attack path or privilege requirement.

Likely exposure

Exposure is most relevant to Linux systems running affected kernel versions where RDMA/ib_srp is present and used. The bundle lists affected Linux kernel versions including 3.8, 4.9.304, 4.14.269, 4.19.232, 5.4.182, 5.10.103, 5.15.26, 5.16.12, and 5.17.

Exploitation context

No active exploitation is indicated. The source bundle says KEV is false and provides no public exploit status, attacker workflow, or proof-of-concept evidence. Treat this as a kernel availability defect unless vendor advisories provide stronger impact detail.

Researcher notes

The public record is sparse: no CVSS, CWE, exploit conditions, or distro mapping are provided. Analysis should focus on the ib_srp workqueue cancellation path and whether deployed kernels include one of the stable commits referenced by the CVE record.

Mitigation direction

  • Update to a kernel build that includes the referenced stable fix.
  • Check your Linux distribution advisory for backported package names and fixed versions.
  • Prioritize systems using RDMA/ib_srp or related storage connectivity.
  • Track vendor guidance if immediate kernel updating is operationally constrained.

Validation and detection

  • Inventory Linux kernel versions across affected server fleets.
  • Identify whether RDMA/ib_srp is present and operational on those systems.
  • Compare deployed kernels against vendor fixed packages or referenced stable commits.
  • Review monitoring for kernel hangs affecting RDMA/SRP workloads.
Prepared
Confidence
medium
Sources
10

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-2022-48930 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
9Source 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
LinuxLinuxef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69e, ef6c49d87c3418c442a22e55e3ce2f91b163d69eunaffected
LinuxLinux3.8, 0, 4.9.304, 4.14.269, 4.19.232, 5.4.182, 5.10.103, 5.15.26, 5.16.12, 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.