---
id: CVE-2026-98579
title: 'nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure'
summary: |-
  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 (n…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    5b1eca82085134bd92cd3810b0ef003c91e3f668
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    755bfc409748d8f3df64eb0eb26926270de3dd77
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    e43ec0191c1630f41e7043ac729ea6f1b8044a7f
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    08d2c069239ab425fdd333784a6a3b3e034e4aa0
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    cbde7f5d326172d6dbb55cca0df42fa7e1ed8115
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    0b01a946b0f234f5badd25968610b585a4895f08
  - >-
    Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 <
    66f4300206b82b0b143ef0d9be90cd8d29f23a47
  - Linux 3.10
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:18:52.611Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98579'
references:
  - url: 'https://git.kernel.org/stable/c/5b1eca82085134bd92cd3810b0ef003c91e3f668'
  - url: 'https://git.kernel.org/stable/c/d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02'
  - url: 'https://git.kernel.org/stable/c/755bfc409748d8f3df64eb0eb26926270de3dd77'
  - url: 'https://git.kernel.org/stable/c/e43ec0191c1630f41e7043ac729ea6f1b8044a7f'
  - url: 'https://git.kernel.org/stable/c/08d2c069239ab425fdd333784a6a3b3e034e4aa0'
  - url: 'https://git.kernel.org/stable/c/cbde7f5d326172d6dbb55cca0df42fa7e1ed8115'
  - url: 'https://git.kernel.org/stable/c/0b01a946b0f234f5badd25968610b585a4895f08'
  - url: 'https://git.kernel.org/stable/c/66f4300206b82b0b143ef0d9be90cd8d29f23a47'
tags:
  - cve.org
ingestedAt: '2026-10-18T15:45:12.255Z'
---

## Overview

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.

## Affected

- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < 5b1eca82085134bd92cd3810b0ef003c91e3f668`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < 755bfc409748d8f3df64eb0eb26926270de3dd77`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < e43ec0191c1630f41e7043ac729ea6f1b8044a7f`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < 08d2c069239ab425fdd333784a6a3b3e034e4aa0`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < cbde7f5d326172d6dbb55cca0df42fa7e1ed8115`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < 0b01a946b0f234f5badd25968610b585a4895f08`
- `Linux >= d9b8d8e19b073096d3609bbd60f82148d128b555 < 66f4300206b82b0b143ef0d9be90cd8d29f23a47`
- `Linux 3.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.