CVE-2026-31485

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-22. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

spi: spi-fsl-lpspi: fix teardown order issue (UAF)

There is a teardown order issue in the driver. The SPI controller is registered using devm_spi_register_controller(), which delays unregistration of the SPI controller until after the fsl_lpspi_remove() function returns.

As the fsl_lpspi_remove() function synchronously tears down the DMA channels, a running SPI transfer triggers the following NULL pointer dereference due to use after free:

| fsl_lpspi 42550000.spi: I/O Error in DMA RX | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [...] | Call trace: | fsl_lpspi_dma_transfer+0x260/0x340 [spi_fsl_lpspi] | fsl_lpspi_transfer_one+0x198/0x448 [spi_fsl_lpspi] | spi_transfer_one_message+0x49c/0x7c8 | __spi_pump_transfer_message+0x120/0x420 | __spi_sync+0x2c4/0x520 | spi_sync+0x34/0x60 | spidev_message+0x20c/0x378 [spidev] | spidev_ioctl+0x398/0x750 [spidev] [...]

Switch from devm_spi_register_controller() to spi_register_controller() in fsl_lpspi_probe() and add the corresponding spi_unregister_controller() in fsl_lpspi_remove().

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
3.1%
KEV
Not listed

Published

April 22, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3fd54f8b0317fbccc103961ddd660f2a32dcf0b
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d5d01f24bc6fbde40b4e567ef9160194b61267bc
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ca4483f36ac1b62e69f8b182c5b8f059e0abecfb
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b341c1176f2e001b3adf0b47154fc31589f7410e
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/adb25339b66112393fd6892ceff926765feb5b86
generic

spi: spi-fsl-lpspi: fix teardown order issue (UAF) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/15650dfbaeeb14bcaaf053b93cf631db8d465300

Vendor Advisories for CVE-2026-31485(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 45× 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.

Showing the most recent 100 of 167 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 13:19 UTCNVD updateCVSS v3 → 7.8 · severity → HIGH
  6. 2026-07-14 13:11 UTCMITRE cvelistV5
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-12 05:46 UTCEPSS rescore
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-09 19:10 UTCEPSS rescore
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  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-06 16:27 UTCEPSS rescore
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  17. 2026-07-06 02:23 UTCEPSS rescore
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  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-28 14:07 UTCEPSS rescore
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  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-25 13:49 UTCEPSS rescore
  6. 2026-06-25 13:49 UTCEPSS rescore
  7. 2026-06-24 14:05 UTCEPSS rescore
  8. 2026-06-23 21:33 UTCEPSS rescore
  9. 2026-06-23 21:33 UTCEPSS rescore
  10. 2026-06-22 14:25 UTCEPSS rescore
  11. 2026-06-22 14:25 UTCEPSS rescore
  12. 2026-06-21 14:56 UTCEPSS rescore
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  14. 2026-06-21 01:59 UTCEPSS rescore
  15. 2026-06-19 19:25 UTCEPSS rescore
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  17. 2026-06-18 17:52 UTCEPSS rescore
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  20. 2026-06-16 17:52 UTCEPSS rescore
  21. 2026-06-15 17:49 UTCEPSS rescore
  22. 2026-06-14 23:35 UTCEG score recompute
  23. 2026-06-14 23:35 UTCVendor advisory
  24. 2026-06-14 23:35 UTCGHSA enrichment
  25. 2026-06-14 23:18 UTCEPSS rescore
  26. 2026-06-14 12:39 UTCEG score recompute
  27. 2026-06-14 12:39 UTCVendor advisory
  28. 2026-06-14 12:39 UTCGHSA enrichment
  29. 2026-06-13 23:00 UTCEPSS rescore
  30. 2026-06-12 23:12 UTCEPSS rescore
  31. 2026-06-12 23:12 UTCEPSS rescore
  32. 2026-06-12 12:39 UTCEG score recompute
  33. 2026-06-12 12:39 UTCVendor advisory
  34. 2026-06-12 12:39 UTCGHSA enrichment
  35. 2026-06-12 01:44 UTCEG score recompute
  36. 2026-06-12 01:44 UTCVendor advisory
  37. 2026-06-12 01:44 UTCGHSA enrichment
  38. 2026-06-11 14:48 UTCEG score recompute
  39. 2026-06-11 14:48 UTCVendor advisory
  40. 2026-06-11 14:48 UTCGHSA enrichment
  41. 2026-06-11 14:00 UTCEPSS rescore
  42. 2026-06-10 22:18 UTCEPSS rescore
  43. 2026-06-10 13:22 UTCEPSS rescore
  44. 2026-06-10 12:32 UTCEG score recompute
  45. 2026-06-10 12:32 UTCVendor advisory
  46. 2026-06-10 12:32 UTCGHSA enrichment
  47. 2026-06-10 01:37 UTCEG score recompute
  48. 2026-06-10 01:37 UTCVendor advisory
  49. 2026-06-10 01:37 UTCGHSA enrichment
  50. 2026-06-09 14:41 UTCEG score recompute
  51. 2026-06-09 14:41 UTCVendor advisory
  52. 2026-06-09 14:41 UTCGHSA enrichment
  53. 2026-06-09 03:46 UTCEG score recompute
  54. 2026-06-09 03:46 UTCVendor advisory
  55. 2026-06-09 03:46 UTCGHSA enrichment
  56. 2026-06-08 14:17 UTCEPSS rescore
  57. 2026-06-08 14:17 UTCEPSS rescore
  58. 2026-06-08 05:23 UTCEG score recompute
  59. 2026-06-08 05:23 UTCVendor advisory
  60. 2026-06-08 05:23 UTCGHSA enrichment
  61. 2026-06-07 18:28 UTCEG score recompute
  62. 2026-06-07 18:28 UTCVendor advisory
  63. 2026-06-07 18:28 UTCGHSA enrichment
  64. 2026-06-07 15:25 UTCEPSS rescore
  65. 2026-06-07 15:25 UTCEPSS rescore
  66. 2026-06-07 15:25 UTCEPSS rescore
  67. 2026-06-07 07:29 UTCEG score recompute
  68. 2026-06-07 07:29 UTCVendor advisory
  69. 2026-06-07 07:29 UTCGHSA enrichment
  70. 2026-06-06 20:32 UTCEG score recompute
  71. 2026-06-06 20:32 UTCVendor advisory
  72. 2026-06-06 20:32 UTCGHSA enrichment
  73. 2026-06-06 13:47 UTCEPSS rescore
  74. 2026-06-06 13:47 UTCEPSS rescore
  75. 2026-06-06 05:31 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-31485?
CVE-2026-31485 is a high vulnerability published on April 22, 2026. In the Linux kernel, the following vulnerability has been resolved: spi: spi-fsl-lpspi: fix teardown order issue (UAF) There is a teardown order issue in the driver. The SPI controller is registered using devmspiregister_controller(), which delays unregistration of the SPI controller until after…
When was CVE-2026-31485 disclosed?
CVE-2026-31485 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31485 actively exploited?
CVE-2026-31485 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-31485?
CVE-2026-31485 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-31485?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31485, 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.

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