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CVE Record

CVE-2023-53287: usb: cdns3: Put the cdns set active part outside the spin lock

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Put the cdns set active part outside the spin lock The device may be scheduled during the resume process, so this cannot appear in atomic operations. Since pm_runtime_set_active will resume suppliers, put set active outside the spin lock, which is only used to protect the struct cdns data structure, otherwise the kernel will report the following warning: BUG: sleeping function called from invalid context at drivers/base/power/runtime.c:1163 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 651, name: sh preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 CPU: 0 PID: 651 Comm: sh Tainted: G WC 6.1.20 #1 Hardware name: Freescale i.MX8QM MEK (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x64/0x80 dump_stack+0x1c/0x38 __might_resched+0x1fc/0x240 __might_sleep+0x68/0xc0 __pm_runtime_resume+0x9c/0xe0 rpm_get_suppliers+0x68/0x1b0 __pm_runtime_set_status+0x298/0x560 cdns_resume+0xb0/0x1c0 cdns3_controller_resume.isra.0+0x1e0/0x250 cdns3_plat_resume+0x28/0x40

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel availability issue in the Cadence USB3 driver. During resume, the driver could call power-management code while holding a spin lock, causing a kernel warning and potential disruption. The provided data shows local, low-privilege attack requirements and no confidentiality or integrity impact.

Executive priority

Treat as a moderate operational stability issue. Prioritize patching for embedded or appliance fleets where USB controller resume failures could affect uptime. It is not presented as data theft or privilege escalation in the supplied sources.

Technical view

The cdns3 resume path called pm_runtime_set_active inside a spin lock. That operation may sleep because it can resume suppliers, which is invalid in atomic context. The fix moves the set-active operation outside the lock that protects the cdns data structure.

Likely exposure

Exposure is most likely on Linux systems using the cdns3 USB controller driver on affected kernel versions or downstream kernels carrying the vulnerable code. The trace references an i.MX8QM platform, but the affected product in the sources is Linux, not a specific device list.

Exploitation context

The CVSS vector is local, low complexity, low privileges, and no user interaction. The impact is availability only. The source bundle marks KEV as false and provides no evidence of active exploitation or public exploit use.

Researcher notes

The key condition is sleeping-capable runtime PM work inside a spin-locked resume path. Validation should focus on code provenance and backport presence, because vendor kernels may not map cleanly to upstream version numbers.

Mitigation direction

  • Update to a vendor-supported Linux kernel containing the cdns3 runtime PM fix.
  • Prioritize affected systems that use the cdns3 USB controller driver.
  • Check downstream BSP or distribution advisories for backported fixes.
  • If patch timing is unclear, request vendor guidance before deploying workarounds.

Validation and detection

  • Inventory kernel versions across Linux systems and embedded platforms.
  • Confirm whether the cdns3 driver is built, loaded, or used by hardware.
  • Verify the kernel contains one of the referenced stable fix commits or an equivalent backport.
  • Review kernel logs for the documented invalid-context power-management warning during resume.
Prepared
Confidence
high
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

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CVE-2023-53287 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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

SSVC decision data

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

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2023-53287Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux7733f6c32e36ff9d7adadf40001039bf219b1cbe, 7733f6c32e36ff9d7adadf40001039bf219b1cbe, 7733f6c32e36ff9d7adadf40001039bf219b1cbe, 7733f6c32e36ff9d7adadf40001039bf219b1cbeunaffected
LinuxLinux5.4, 0, 5.15.133, 6.1.55, 6.5.5, 6.6affected
Weakness

CWE details

No CWE listed

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