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VulnerabilityPublished

CVE-2026-98579: Linux kernel · nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in e43ec0191c1630f41e7043ac729ea6f1b8044a7f : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity
Low

Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e43ec0191c1630f41e7043ac729ea6f1b8044a7f, d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02, cbde7f5d326172d6dbb55cca0df42fa7e1ed8115 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < e43ec0191c1630f41e7043ac729ea6f1b8044a7f
Fixed in
  • e43ec0191c1630f41e7043ac729ea6f1b8044a7f
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02
Fixed in
  • d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < cbde7f5d326172d6dbb55cca0df42fa7e1ed8115
Fixed in
  • cbde7f5d326172d6dbb55cca0df42fa7e1ed8115
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 755bfc409748d8f3df64eb0eb26926270de3dd77
Fixed in
  • 755bfc409748d8f3df64eb0eb26926270de3dd77
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 66f4300206b82b0b143ef0d9be90cd8d29f23a47
Fixed in
  • 66f4300206b82b0b143ef0d9be90cd8d29f23a47
LinuxLinuxAffected
  • ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 08d2c069239ab425fdd333784a6a3b3e034e4aa0
Fixed in
  • 08d2c069239ab425fdd333784a6a3b3e034e4aa0

AI-suggested

A fix is available and has been applied in the Linux kernel. Users and administrators should update to a fixed kernel version that includes the patch identified by the provided commit hashes. No additional mitigation is required once patched.

Description

A memory leak vulnerability was fixed in the Linux kernel's NFC LLCP implementation. The issue involved a failure to free allocated TLV nodes on certain error paths during nested netlink attribute parsing and sending. This flaw was addressed by routing error paths through a common cleanup routine to properly free resources.

References

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