CVE-2026-64500: Linux kernel · iio: adc: lpc32xx: Initialize completion before requesting IRQ
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 3 Nov 2026, 19:13 UTC
Rated High 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 25 Jul 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 3 Nov 2026.
What to do
AI-suggested
The vulnerability is resolved by applying the fix that moves the init_completion() call before devm_request_irq() in the lpc32xx_adc_probe() function. Users should update their Linux kernel to a version that includes this fix. No additional mitigation is required once the patch is applied.
Description
A vulnerability in the Linux kernel's lpc32xx ADC driver occurs because the completion structure is initialized after the interrupt handler is registered. If an interrupt arrives before initialization, the handler calls complete() on an uninitialized completion, causing a kernel panic due to a wild memory access. The issue is fixed by initializing the completion before requesting the IRQ.
References
- git.kernel.org/stable/c/7090c0d29708ee305022d0ea7b37612b33242fa2 (opens in a new tab)
- git.kernel.org/stable/c/0e33587967b356519aa6f220b5b43c6976320397 (opens in a new tab)
- git.kernel.org/stable/c/1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd (opens in a new tab)
- git.kernel.org/stable/c/820c4f15353efe9a9429ae86ccceeaf4e0e4e585 (opens in a new tab)
- git.kernel.org/stable/c/48eccc6caed4e62c0f199ab3a3772fa969cd3b2d (opens in a new tab)
- git.kernel.org/stable/c/9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4 (opens in a new tab)
- git.kernel.org/stable/c/2f18c5551aa97ca7f39dbb151c67c9053ccadc17 (opens in a new tab)
- git.kernel.org/stable/c/e561b35633f450ee607e87a6401d97f156a0cd54 (opens in a new tab)