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Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

Announced Source revision 1
Original source ↗

CVE-2024-58009

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-58009

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "f6ad641646b67f29c7578dcd6c25813c7dcbf51e",
        "lessThan": "a9a7672fc1a0fe18502493936ccb06413ab89ea6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "daa13175a6dea312a76099066cb4cbd4fc959a84",
        "lessThan": "8e605f580a97530e5a3583beea458a3fa4cbefbd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a8677028dd5123e5e525b8195483994d87123de4",
        "lessThan": "cf601a24120c674cd7c907ea695f92617af6abd0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bb2f2342a6ddf7c04f9aefbbfe86104cd138e629",
        "lessThan": "297ce7f544aa675b0d136d788cad0710cdfb0785",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8ad09ddc63ace3950ac43db6fbfe25b40f589dd6",
        "lessThan": "245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "61686abc2f3c2c67822aa23ce6f160467ec83d35",
        "lessThan": "691218a50c3139f7f57ffa79fb89d932eda9571e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7c4f78cdb8e7501e9f92d291a7d956591bf73be9",
        "lessThan": "49c0d55d59662430f1829ae85b969619573d0fa1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7c4f78cdb8e7501e9f92d291a7d956591bf73be9",
        "lessThan": "5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.4.287",
        "lessThan": "5.4.291",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.10.231",
        "lessThan": "5.10.235",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.174",
        "lessThan": "5.15.179",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.120",
        "lessThan": "6.1.129",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.6.66",
        "lessThan": "6.6.78",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.12.5",
        "lessThan": "6.12.14",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "net/bluetooth/l2cap_sock.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.13"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.13",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.291",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.235",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.179",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.129",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.78",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.13.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.13.*"
      },
      {
        "status": "unaffected",
        "version": "6.14",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/bluetooth/l2cap_sock.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-58009

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26864 · Revision 1
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