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CVE-2026-98579

Linux: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5b1eca82085134bd92cd3810b0ef003c91e3f668Also 755bfc409748d8f3df64eb0eb26926270de3dd77, 08d2c069239ab425fdd333784a6a3b3e034e4aa0 and 2 moreCVE List
Published18 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 5b1eca82085134bd92cd3810b0ef003c91e3f668LinuxCVE List
  • 755bfc409748d8f3df64eb0eb26926270de3dd77LinuxCVE List
  • 08d2c069239ab425fdd333784a6a3b3e034e4aa0LinuxCVE List
  • 0b01a946b0f234f5badd25968610b585a4895f08LinuxCVE List
  • 66f4300206b82b0b143ef0d9be90cd8d29f23a47LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

In the Linux kernel, the following vulnerability has been resolved:

nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure

nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued.

Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs.

Text from CVE List

Affected versions 18

  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before 5b1eca82085134bd92cd3810b0ef003c91e3f668CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before 755bfc409748d8f3df64eb0eb26926270de3dd77CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before e43ec0191c1630f41e7043ac729ea6f1b8044a7fCVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before 08d2c069239ab425fdd333784a6a3b3e034e4aa0CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before cbde7f5d326172d6dbb55cca0df42fa7e1ed8115CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before 0b01a946b0f234f5badd25968610b585a4895f08CVE List
  • Linuxaffected: d9b8d8e19b073096d3609bbd60f82148d128b555 before 66f4300206b82b0b143ef0d9be90cd8d29f23a47CVE List
  • Linuxaffected: 3.10CVE List
  • Linuxunaffected: all versions before 3.10CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.112 through 6.12.*CVE List
  • Linuxunaffected: 6.18.55 through 6.18.*CVE List
  • Linuxunaffected: 7.2.9 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8