CVE-2026-64171: Linux kernel · i2c: tegra: fix pm_runtime leak on mutex_lock failure
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to 57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb or 8f7ed203b39004c02479a9156089d87d1ac2c1d8 when convenient.
Data as of 6 Nov 2026, 17:03 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-06.
- Patch
- Available – fixed in 57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb, 8f7ed203b39004c02479a9156089d87d1ac2c1d8
Exploitation 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 6 Nov 2026.
What to do
Upgrade Linux kernel to 57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb or 8f7ed203b39004c02479a9156089d87d1ac2c1d8.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available in the Linux kernel commits identified by hashes 57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb and 8f7ed203b39004c02479a9156089d87d1ac2c1d8. Users should update to a kernel version including these fixes to resolve the issue.
Description
A vulnerability in the Linux kernel's i2c tegra driver causes a runtime PM reference leak when tegra_i2c_mutex_lock() fails. This leak prevents the device from entering runtime suspend, potentially impacting power management.