VulnerabilityPublished 28 May 2026Updated 21 Oct 2026

CVE-2026-46228: Linux kernel · spi: ch341: fix devres lifetime

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in abe572f630bc1f0e77041012ab075869036ede4f : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in abe572f630bc1f0e77041012ab075869036ede4f, 4422fc2411cbbdf5104a914e0596bb483faea254, 108a64b27a52f781c4f3751641e3dd65c7dd2fb5 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 28 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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.

What to do

Upgrade Linux kernel to abe572f630bc1f0e77041012ab075869036ede4f, 4422fc2411cbbdf5104a914e0596bb483faea254, 108a64b27a52f781c4f3751641e3dd65c7dd2fb5 or 42dfcd2ced905ea3993d88a051c13e04ab1029f7.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 8846739f52afa07e63395c80227dc544f54bd7b1, < abe572f630bc1f0e77041012ab075869036ede4f	Fixed in abe572f630bc1f0e77041012ab075869036ede4f
LinuxLinux	Affected ≥ 8846739f52afa07e63395c80227dc544f54bd7b1, < 4422fc2411cbbdf5104a914e0596bb483faea254	Fixed in 4422fc2411cbbdf5104a914e0596bb483faea254
LinuxLinux	Affected ≥ 8846739f52afa07e63395c80227dc544f54bd7b1, < 108a64b27a52f781c4f3751641e3dd65c7dd2fb5	Fixed in 108a64b27a52f781c4f3751641e3dd65c7dd2fb5
LinuxLinux	Affected ≥ 8846739f52afa07e63395c80227dc544f54bd7b1, < 42dfcd2ced905ea3993d88a051c13e04ab1029f7	Fixed in 42dfcd2ced905ea3993d88a051c13e04ab1029f7
LinuxLinux	Affected =6.11	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes). Fix the controller and driver data lifetime so that they are released on driver unbind. Note that this also makes sure that the SPI controller is placed correctly under the USB interface in the device tree.

References

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