VulnerabilityPublished 28 May 2026Updated 21 Oct 2026

CVE-2026-46241: Linux kernel · spi: mpc52xx: fix use-after-free on registration failure

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f62c060272b9d7423b1650b844e8e4e7b8f9f925 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 15:59 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 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f62c060272b9d7423b1650b844e8e4e7b8f9f925, dd74a790818ebb9a2be3a94ac935a374755cd278, 336d9ad7560b3baba17af06727a888040ee93390 +2

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 to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 42bbb70980f3720b0ae6da6af862af0e95a04351, < f62c060272b9d7423b1650b844e8e4e7b8f9f925	Fixed in f62c060272b9d7423b1650b844e8e4e7b8f9f925
LinuxLinux	Affected ≥ 42bbb70980f3720b0ae6da6af862af0e95a04351, < dd74a790818ebb9a2be3a94ac935a374755cd278	Fixed in dd74a790818ebb9a2be3a94ac935a374755cd278
LinuxLinux	Affected ≥ 42bbb70980f3720b0ae6da6af862af0e95a04351, < 336d9ad7560b3baba17af06727a888040ee93390	Fixed in 336d9ad7560b3baba17af06727a888040ee93390
LinuxLinux	Affected ≥ 42bbb70980f3720b0ae6da6af862af0e95a04351, < 8b49b6aadd0c622ca7d68b4a53ae10362e221cf3	Fixed in 8b49b6aadd0c622ca7d68b4a53ae10362e221cf3
LinuxLinux	Affected ≥ 42bbb70980f3720b0ae6da6af862af0e95a04351, < 5c77f11b9b5f1ad5a704dad875260c44016ede10	Fixed in 5c77f11b9b5f1ad5a704dad875260c44016ede10
LinuxLinux	Affected =2.6.33	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: spi: mpc52xx: fix use-after-free on registration failure Make sure to disable and free the interrupts in case controller registration fails to avoid a potential use-after-free and resource leak. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

References

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