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VulnerabilityPublished Updated

CVE-2026-90410: Linux kernel · spi: davinci: switch to managed controller allocation

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f9452eba71fbfcee55c0b8e030ee3615e9f75f65 : patch Linux kernel soon.

Data as of 30 Oct 2026, 13:04 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f9452eba71fbfcee55c0b8e030ee3615e9f75f65, ea408a05dc8f18b4a184b88d6e19d2fd1acc1527, 2382f18daa4303923d66526db984e9a38074a312 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < f9452eba71fbfcee55c0b8e030ee3615e9f75f65
Fixed in
  • f9452eba71fbfcee55c0b8e030ee3615e9f75f65
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < ea408a05dc8f18b4a184b88d6e19d2fd1acc1527
Fixed in
  • ea408a05dc8f18b4a184b88d6e19d2fd1acc1527
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 2382f18daa4303923d66526db984e9a38074a312
Fixed in
  • 2382f18daa4303923d66526db984e9a38074a312
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 29e37f768f35592e26477f703649bd2e6f18d857
Fixed in
  • 29e37f768f35592e26477f703649bd2e6f18d857
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 3b544072185c3d19ddec621ec9f6897ea2d10ee3
Fixed in
  • 3b544072185c3d19ddec621ec9f6897ea2d10ee3
LinuxLinuxAffected
  • ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 1a7958ce58dc95b06615df00c120ece4eb9ccc86
Fixed in
  • 1a7958ce58dc95b06615df00c120ece4eb9ccc86

AI-suggested

This vulnerability has been fixed in the Linux kernel by switching to managed controller allocation with devm_spi_alloc_host() and adjusting the interrupt and clock resource release order. Users should update to a Linux kernel version that includes the fix identified by the commit hashes provided. No additional mitigation is required once the fix is applied.

Description

A use-after-free vulnerability in the Linux kernel's davinci SPI controller driver was addressed by switching to managed controller allocation. The issue arises because the controller is allocated non-managed while the interrupt is registered with a managed request, causing a late interrupt to access freed memory. The fix involves using devm_spi_alloc_host() to ensure proper release order and explicitly draining interrupts before disabling the controller.

References

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