VulnerabilityPublished 17 Sep 2026Updated 30 Oct 2026

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

Source GCVE Database

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Authoritative record:CVE-2026-90410· High

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

Data as of 30 Oct 2026, 18:21 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

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-j436-5fx7-7xpm

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < f9452eba71fbfcee55c0b8e030ee3615e9f75f65	Fixed in f9452eba71fbfcee55c0b8e030ee3615e9f75f65
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < ea408a05dc8f18b4a184b88d6e19d2fd1acc1527	Fixed in ea408a05dc8f18b4a184b88d6e19d2fd1acc1527
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 2382f18daa4303923d66526db984e9a38074a312	Fixed in 2382f18daa4303923d66526db984e9a38074a312
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 29e37f768f35592e26477f703649bd2e6f18d857	Fixed in 29e37f768f35592e26477f703649bd2e6f18d857
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 3b544072185c3d19ddec621ec9f6897ea2d10ee3	Fixed in 3b544072185c3d19ddec621ec9f6897ea2d10ee3
LinuxLinux	Affected ≥ 5b3bb5963ff23a344062aba04937533a6f575761, < 1a7958ce58dc95b06615df00c120ece4eb9ccc86	Fixed in 1a7958ce58dc95b06615df00c120ece4eb9ccc86

AI-suggested

A fix is available that switches the controller allocation to devm_spi_alloc_host(), ensuring proper resource release order. The redundant spi_controller_put() call from the removal function has been dropped, and interrupts are explicitly drained before disabling the controller. Users should update to the fixed Linux kernel version containing these changes once available. Until then, no specific workaround is indicated.

Description

A use-after-free vulnerability in the Linux kernel's davinci SPI controller driver was fixed by switching to managed controller allocation. The issue arises because the controller is freed before the interrupt handler is fully released, allowing 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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