CVE-2023-53094

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

Score 4.7 from GitHub Security Advisory published 2025-05-02. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.7Exploit: NoneExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

tty: serial: fsl_lpuart: fix race on RX DMA shutdown

From time to time DMA completion can come in the middle of DMA shutdown:

: : lpuart32_shutdown() lpuart_dma_shutdown() del_timer_sync() lpuart_dma_rx_complete() lpuart_copy_rx_to_tty() mod_timer() lpuart_dma_rx_free()

When the timer fires a bit later, sport->dma_rx_desc is NULL:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 pc : lpuart_copy_rx_to_tty+0xcc/0x5bc lr : lpuart_timer_func+0x1c/0x2c Call trace: lpuart_copy_rx_to_tty lpuart_timer_func call_timer_fn __run_timers.part.0 run_timer_softirq __do_softirq __irq_exit_rcu irq_exit handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler ...

To fix this fold del_timer_sync() into lpuart_dma_rx_free() after dmaengine_terminate_sync() to make sure timer will not be re-started in lpuart_copy_rx_to_tty() <= lpuart_dma_rx_complete().

CVSS v3
4.7
EG Score
4.7(medium)
EG Risk
—
EPSS
2.0%
KEV
Not listed

Published

May 2, 2025

Last Modified

November 12, 2025

References (5)

Vendor Advisories for CVE-2023-53094(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 23:16 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
  5. 2026-07-20 17:06 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
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  8. 2026-07-18 10:03 UTCEPSS rescore
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  10. 2026-07-16 17:01 UTCEPSS rescore
  11. 2026-07-15 16:56 UTCEPSS rescore
  12. 2026-07-13 22:28 UTCEPSS rescore
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  14. 2026-07-13 06:11 UTCEPSS rescore
  15. 2026-07-11 08:26 UTCEPSS rescore
  16. 2026-07-09 19:08 UTCEPSS rescore
  17. 2026-07-08 15:13 UTCEPSS rescore
  18. 2026-07-07 13:45 UTCEPSS rescore
  19. 2026-07-07 13:44 UTCEPSS rescore
  20. 2026-07-07 02:51 UTCOSV refresh
  21. 2026-07-06 16:26 UTCEPSS rescore
  22. 2026-07-06 16:26 UTCEPSS rescore
  23. 2026-07-06 02:22 UTCEPSS rescore
  24. 2026-07-06 02:22 UTCEPSS rescore
  25. 2026-07-04 06:29 UTCEPSS rescore
Show 53 more
  1. 2026-06-30 23:21 UTCEPSS rescore
  2. 2026-06-30 23:21 UTCEPSS rescore
  3. 2026-06-28 14:06 UTCEPSS rescore
  4. 2026-06-28 14:06 UTCEPSS rescore
  5. 2026-06-28 04:55 UTCEPSS rescore
  6. 2026-06-27 03:07 UTCEPSS rescore
  7. 2026-06-25 13:48 UTCEPSS rescore
  8. 2026-06-25 13:48 UTCEPSS rescore
  9. 2026-06-24 14:04 UTCEPSS rescore
  10. 2026-06-24 14:04 UTCEPSS rescore
  11. 2026-06-23 21:31 UTCEPSS rescore
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  13. 2026-06-22 14:24 UTCEPSS rescore
  14. 2026-06-22 14:24 UTCEPSS rescore
  15. 2026-06-21 14:55 UTCEPSS rescore
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  17. 2026-06-21 01:58 UTCEPSS rescore
  18. 2026-06-21 01:58 UTCEPSS rescore
  19. 2026-06-19 19:24 UTCEPSS rescore
  20. 2026-06-19 19:24 UTCEPSS rescore
  21. 2026-06-18 17:51 UTCEPSS rescore
  22. 2026-06-18 13:44 UTCOSV refresh
  23. 2026-06-17 17:51 UTCEPSS rescore
  24. 2026-06-15 17:47 UTCEPSS rescore
  25. 2026-06-14 23:16 UTCEPSS rescore
  26. 2026-06-13 22:59 UTCEPSS rescore
  27. 2026-06-13 22:59 UTCEPSS rescore
  28. 2026-06-12 23:11 UTCEPSS rescore
  29. 2026-06-11 13:59 UTCEPSS rescore
  30. 2026-06-10 22:17 UTCEPSS rescore
  31. 2026-06-10 13:21 UTCEPSS rescore
  32. 2026-06-08 14:16 UTCEPSS rescore
  33. 2026-06-08 14:16 UTCEPSS rescore
  34. 2026-06-07 15:24 UTCEPSS rescore
  35. 2026-06-07 15:24 UTCEPSS rescore
  36. 2026-06-06 13:46 UTCEPSS rescore
  37. 2026-06-06 13:46 UTCEPSS rescore
  38. 2026-06-05 22:46 UTCEPSS rescore
  39. 2026-06-05 22:46 UTCEPSS rescore
  40. 2026-06-05 06:09 UTCEPSS rescore
  41. 2026-06-05 06:09 UTCEPSS rescore
  42. 2026-06-04 13:11 UTCEPSS rescore
  43. 2026-06-04 13:11 UTCEPSS rescore
  44. 2026-06-01 13:51 UTCEPSS rescore
  45. 2026-05-31 22:30 UTCEPSS rescore
  46. 2026-05-31 22:30 UTCEPSS rescore
  47. 2026-05-31 00:15 UTCEPSS rescore
  48. 2026-05-31 00:15 UTCEPSS rescore
  49. 2026-05-30 06:15 UTCEG score recompute
  50. 2026-05-30 06:15 UTCVendor advisory
  51. 2026-05-30 06:15 UTCGHSA enrichment
  52. 2026-05-30 03:05 UTCOSV refresh
  53. 2026-05-29 13:43 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-53094?
CVE-2023-53094 is a medium vulnerability published on May 2, 2025. In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: fix race on RX DMA shutdown From time to time DMA completion can come in the middle of DMA shutdown: <process ctx>: <IRQ>: lpuart32_shutdown() lpuartdmashutdown() deltimersync() lpuartdmarx_complete()…
When was CVE-2023-53094 disclosed?
CVE-2023-53094 was first published in the National Vulnerability Database on May 2, 2025, with the most recent update on November 12, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-53094 actively exploited?
CVE-2023-53094 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-53094?
CVE-2023-53094 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2023-53094?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53094, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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