CVE-2023-52524 net: nfc: llcp: Add lock when modifying device list

2024-03-0221:52:30

Linux

github.com

cve-2023-52524

net

nfc

llcp

device list

lock

corruption

syzbot

6.8 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.4%

JSON

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

net: nfc: llcp: Add lock when modifying device list

The device list needs its associated lock held when modifying it, or the
list could become corrupted, as syzbot discovered.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/llcp_core.c"
    ],
    "versions": [
      {
        "version": "dd6ff3f38627",
        "lessThan": "191d87a19cf1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "96f2c6f272ec",
        "lessThan": "dba849cc9811",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fc8429f8d868",
        "lessThan": "4837a192f6d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "425d9d3a92df",
        "lessThan": "7562780e32b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6709d4b7bc2e",
        "lessThan": "29c16c2bf586",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6709d4b7bc2e",
        "lessThan": "dfc7f7a988da",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/nfc/llcp_core.c"
    ],
    "versions": [
      {
        "version": "6.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.5",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.258",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.198",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.135",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.57",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.5.7",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]