CVE-2026-97610: Linux kernel · netfs: Fix uninitialized return value in netfs_unbuffered_write()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f18e8774f4d3137fa0a5fb8ffa83d59a719666d8 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:37 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f18e8774f4d3137fa0a5fb8ffa83d59a719666d8, 6.20, 6.18.53 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in Linux kernel versions 6.18.53, 6.20, and 7.0 as well as specific commits. Users should update to these fixed versions to remediate the issue.
Description
A vulnerability in the Linux kernel's netfs subsystem caused uninitialized return values in netfs_unbuffered_write() when preparation of the first subrequest fails. This could lead to returning unrelated errors instead of the actual write error. The issue was fixed by initializing the return value properly.