CVE-2026-98576

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix slab-out-of-bounds reads when logging service names nfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null- terminated strings to pr_debug() using the %s format specifier. The buffers are allocated via kmemdup() or come from netlink attributes and are not guaranteed to be null-terminated, causing __dynamic_pr_debug() to read beyond the allocated region: KASAN: slab-out-of-bounds Read in __dynamic_pr_debug Fix both call sites by using %.*s with the explicit length to limit the output to the actual length of the string.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-18 16:17:09.930000

Last modified

2026-10-19 10:19:16.730000

View original CVE JSON

{
  "id": "CVE-2026-98576",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:17:09.930",
  "lastModified": "2026-10-19T10:19:16.730",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix slab-out-of-bounds reads when logging service names\n\nnfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null-\nterminated strings to pr_debug() using the %s format specifier.\nThe buffers are allocated via kmemdup() or come from netlink\nattributes and are not guaranteed to be null-terminated, causing\n__dynamic_pr_debug() to read beyond the allocated region:\n\n  KASAN: slab-out-of-bounds Read in __dynamic_pr_debug\n\nFix both call sites by using %.*s with the explicit length to limit\nthe output to the actual length of the string."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "net/nfc/llcp_commands.c",
            "net/nfc/llcp_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "75f7c5a42fa1483f5912279a749417c284ad708f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "6d4ca872830e46fcca9c086bf19fa9bd2faf09d2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "a143f7835faa4fe0178448289feea4f84eeee8d6",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "8afb6c194f5781798d3ab3edf243cf5a24a9d1f9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "8978dff632519712d1fa432991e1f2e857f90239",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "4262b12277a3e056c95fc49e9c4d7bd97035d16c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "7dcf371a35632f035baf77bcf2c129165f772ce4",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "net/nfc/llcp_commands.c",
            "net/nfc/llcp_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "3.10",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "3.10",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.271",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.222",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.189",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.158",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.112",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.55",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.9",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4262b12277a3e056c95fc49e9c4d7bd97035d16c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6d4ca872830e46fcca9c086bf19fa9bd2faf09d2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/75f7c5a42fa1483f5912279a749417c284ad708f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7dcf371a35632f035baf77bcf2c129165f772ce4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8978dff632519712d1fa432991e1f2e857f90239",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8afb6c194f5781798d3ab3edf243cf5a24a9d1f9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a143f7835faa4fe0178448289feea4f84eeee8d6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}