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Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491

Announced Source revision 1
Original source ↗

CVE-2024-50044

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-2024-50044

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": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "b77b3fb12fd483cae7c28648903b1d8a6b275f01",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "869c6ee62ab8f01bf2419e45326642be5c9b670a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "ef44274dae9b0a90d1a97ce8b242a3b8243a7745",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "496b2ab0fd10f205e08909a125485fdc98843dbe",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "ced98072d3511b232ae1d3347945f35f30c0e303",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "38b2d5a57d125e1c17661b8308c0240c4a43b534",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "4cb9807c9b53bf1e5560420d26f319f528b50268",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3241ad820dbb172021e0268b5611031991431626",
        "lessThan": "08d1914293dae38350b8088980e59fbc699a72fe",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/bluetooth/rfcomm/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": "2.6.27"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.27",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.323",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.285",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.227",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.168",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.113",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.57",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.11.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.11.*"
      },
      {
        "status": "unaffected",
        "version": "6.12",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/bluetooth/rfcomm/sock.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-50044

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26778 · Revision 1
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