FKIE_CVE-2023-54209

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 06:47
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: block: fix blktrace debugfs entries leakage Commit 99d055b4fd4b ("block: remove per-disk debugfs files in blk_unregister_queue") moves blk_trace_shutdown() from blk_release_queue() to blk_unregister_queue(), this is safe if blktrace is created through sysfs, however, there is a regression in corner case. blktrace can still be enabled after del_gendisk() through ioctl if the disk is opened before del_gendisk(), and if blktrace is not shutdown through ioctl before closing the disk, debugfs entries will be leaked. Fix this problem by shutdown blktrace in disk_release(), this is safe because blk_trace_remove() is reentrant.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7149e57cf01184fba175589f8fbe9fbf33be02e1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/942e81650b81b4ca62f1d8c61de455c9e7c7e6ca
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa07e56c6a9c7558165690d14eed4fe8babf34fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd7de3704af9989b780693d51eaea49a665bd9c2
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/genhd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aa07e56c6a9c7558165690d14eed4fe8babf34fb",
              "status": "affected",
              "version": "99d055b4fd4bbb309c6cdb51a0d420669f777944",
              "versionType": "git"
            },
            {
              "lessThan": "7149e57cf01184fba175589f8fbe9fbf33be02e1",
              "status": "affected",
              "version": "99d055b4fd4bbb309c6cdb51a0d420669f777944",
              "versionType": "git"
            },
            {
              "lessThan": "942e81650b81b4ca62f1d8c61de455c9e7c7e6ca",
              "status": "affected",
              "version": "99d055b4fd4bbb309c6cdb51a0d420669f777944",
              "versionType": "git"
            },
            {
              "lessThan": "dd7de3704af9989b780693d51eaea49a665bd9c2",
              "status": "affected",
              "version": "99d055b4fd4bbb309c6cdb51a0d420669f777944",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/genhd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix blktrace debugfs entries leakage\n\nCommit 99d055b4fd4b (\"block: remove per-disk debugfs files in\nblk_unregister_queue\") moves blk_trace_shutdown() from\nblk_release_queue() to blk_unregister_queue(), this is safe if blktrace\nis created through sysfs, however, there is a regression in corner\ncase.\n\nblktrace can still be enabled after del_gendisk() through ioctl if\nthe disk is opened before del_gendisk(), and if blktrace is not shutdown\nthrough ioctl before closing the disk, debugfs entries will be leaked.\n\nFix this problem by shutdown blktrace in disk_release(), this is safe\nbecause blk_trace_remove() is reentrant."
    }
  ],
  "id": "CVE-2023-54209",
  "lastModified": "2026-06-17T06:47:01.247",
  "metrics": {},
  "published": "2025-12-30T13:16:09.087",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7149e57cf01184fba175589f8fbe9fbf33be02e1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/942e81650b81b4ca62f1d8c61de455c9e7c7e6ca"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa07e56c6a9c7558165690d14eed4fe8babf34fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd7de3704af9989b780693d51eaea49a665bd9c2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.