CVE-2026-43004: Linux kernel · spi: stm32-ospi: Fix resource leak in remove() callback
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 00:51 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 1 May 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 11 Nov 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to remove the early return in the remove() callback, ensuring proper resource cleanup. Users should update to the fixed kernel version once available. No additional mitigation steps are indicated.
Description
A resource leak vulnerability in the Linux kernel's spi: stm32-ospi driver was fixed by correcting the remove() callback. The callback previously returned early if pm_runtime_resume_and_get() failed, which caused cleanup of the SPI controller and other resources to be skipped. The fix removes this early return to ensure proper cleanup regardless of the PM resume result.