CVE-2024-39493 crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak

2024-07-1007:18:39

Linux

www.cve.org

linux kernel

vulnerability resolved

memory leak

uaf

fix

adf_dev_reset_sync

completion_done

cancel_work_sync

free memory

EPSS

Percentile

5.0%

JSON

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

crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak

Using completion_done to determine whether the caller has gone
away only works after a complete call. Furthermore it’s still
possible that the caller has not yet called wait_for_completion,
resulting in another potential UAF.

Fix this by making the caller use cancel_work_sync and then freeing
the memory safely.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/crypto/intel/qat/qat_common/adf_aer.c"
    ],
    "versions": [
      {
        "version": "daba62d9eedd",
        "lessThan": "0ce5964b82f2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e81cd58aee1",
        "lessThan": "6396b33e98c0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d03092550f52",
        "lessThan": "a718b6d2a329",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4ae5a97781ce",
        "lessThan": "3fb4601e0db1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "226fc408c5fc",
        "lessThan": "e7428e7e3fe9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8a5a7611ccc7",
        "lessThan": "c2d443aa1ae3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d42e097607c",
        "lessThan": "d0fd12497272",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d42e097607c",
        "lessThan": "d3b17c6d9ddd",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/crypto/intel/qat/qat_common/adf_aer.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.316",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.278",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.219",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.161",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.94",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.34",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.5",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]