CVE-2026-63936: Linux kernel · iio: adc: mt6359: fix unchecked return value in mt6358_read_imp
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 15:48 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 19 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 30 Oct 2026.
What to do
AI-suggested
A fix has been applied to initialize val_v to zero before use, preventing uninitialized memory leakage. Users should apply the updated Linux kernel version containing this fix once available. No other mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's iio adc mt6359 driver was fixed by ensuring the variable val_v is initialized before use. Previously, if regmap_read() failed, val_v could remain uninitialized, causing random stack data to be reported as measurement results. This could lead to unintended leakage of stack memory contents.
References
- git.kernel.org/stable/c/6258bfec51e894ea97b8e69f3cde7af269b37de9 (opens in a new tab)
- git.kernel.org/stable/c/944082fdb0284a31c0b37a88c8a1d4404da3a6d9 (opens in a new tab)
- git.kernel.org/stable/c/a72f8e51d6ee66c255a8a93a4421b8a538d112a8 (opens in a new tab)
- git.kernel.org/stable/c/f9bbd943c34a9ad60e593a4b99ce2394e4e2381b (opens in a new tab)