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

2024-07-1007:18:39

Linux

github.com

linux kernel

vulnerability

crypto

qat

memory leak

uaf

cancel_work_sync

AI Score

6.8

Confidence

Low

EPSS

Percentile

5.0%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

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

[
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    "vendor": "Linux",
    "product": "Linux",
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        "version": "daba62d9eedd",
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    ],
    "programFiles": [
      "drivers/crypto/intel/qat/qat_common/adf_aer.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
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        "version": "6.9"
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      {
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        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "4.19.316",
        "versionType": "custom",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.278",
        "versionType": "custom",
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      },
      {
        "status": "unaffected",
        "version": "5.10.219",
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      {
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      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/crypto/intel/qat/qat_common/adf_aer.c"
    ],
    "defaultStatus": "affected"
  }
]