{
  "cveId": "CVE-2021-47056",
  "url": "https://patchblox.com/security/cve/CVE-2021-47056",
  "summary": "CVE-2021-47056 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47056, released February 29, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  crypto: qat - ADF_STATUS_PF_RUNNING should be se...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init  ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()-\u003Emutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0.  [    7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0\u002B0x1ac/0x7c0 [    7.180345] Call Trace: [    7.182576]  mutex_lock\u002B0xc9/0xd0 [    7.183257]  adf_iov_putmsg\u002B0x118/0x1a0 [intel_qat] [    7.183541]  adf_vf2pf_shutdown\u002B0x4d/0x7b [intel_qat] [    7.183834]  adf_dev_shutdown\u002B0x172/0x2b0 [intel_qat] [    7.184127]  adf_probe\u002B0x5e9/0x600 [qat_dh895xccvf]",
  "published": "2024-02-29T23:15:07Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00226,
  "epssPercentile": 0.13382,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47056",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47056",
      "released": "2024-02-29T23:15:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47056",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47056",
      "released": "2024-02-29T23:15:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47056",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47056",
      "released": "2024-02-29T23:15:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}