CVE-2026-98120: Linux kernel · netfs: Fix subreq ref leak
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ebefb12122d1319257ecac01c1a928f78007716a : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 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 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in ebefb12122d1319257ecac01c1a928f78007716a, 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 for this vulnerability is available in Linux kernel versions 6.18.53, 6.20, and 7.0. Users and administrators should upgrade to these or later versions to remediate the issue.
Description
A reference leak vulnerability was fixed in the Linux kernel's netfs subsystem. The flaw involved a subrequest reference leak in the netfs_unbuffered_write() function when the subrequest's io_iter length became zero during preparation. This issue has been resolved in Linux kernel versions 6.18.53, 6.20, and 7.0.