CVE-2026-23330: Linux kernel · nfc: nci: complete pending data exchange on device close
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d05f55d68ebdebb2b0a8480d766eaae88c8c92de : update Linux kernel when convenient.
Data as of 30 Oct 2026, 12:48 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in d05f55d68ebdebb2b0a8480d766eaae88c8c92de, 66083581945bd5b8e99fe49b5aeb83d03f62d053, 702029337b057085ea13f964822dcd95e0fe53f5 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Mar 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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A patch is available and has been applied in the Linux kernel source code. Users and administrators should update to a fixed kernel version containing the referenced commits to remediate this issue. Since this is a kernel-level fix, applying the official kernel update is the recommended mitigation.
Description
A vulnerability in the Linux kernel NFC subsystem (nci) was fixed by ensuring that any pending data exchange is completed before the device is closed. The flaw involved incomplete handling of data exchange callbacks holding socket references, which could lead to resource leaks.
References
- git.kernel.org/stable/c/75fdb22ef0635c02337de0c08c98f93f37b5cbee (opens in a new tab)
- git.kernel.org/stable/c/9df613ef6e8e873cdab969a11f74823488977f1f (opens in a new tab)
- git.kernel.org/stable/c/702029337b057085ea13f964822dcd95e0fe53f5 (opens in a new tab)
- git.kernel.org/stable/c/91ff0d8c3464da7f0c43da38c195e60b660128bf (opens in a new tab)
- git.kernel.org/stable/c/d05f55d68ebdebb2b0a8480d766eaae88c8c92de (opens in a new tab)
- git.kernel.org/stable/c/66083581945bd5b8e99fe49b5aeb83d03f62d053 (opens in a new tab)