CVE-2023-53786 (GCVE-0-2023-53786)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2026-01-05 10:32
VLAI?
Title
dm flakey: fix a crash with invalid table line
Summary
In the Linux kernel, the following vulnerability has been resolved: dm flakey: fix a crash with invalid table line This command will crash with NULL pointer dereference: dmsetup create flakey --table \ "0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512" Fix the crash by checking if arg_name is non-NULL before comparing it.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < f95cb1526669ccdf7eb12eefd57a893953e3595f (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < 12849ed107c0b2869fb775c81208050899006f07 (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < 337b7af273562b73c46ef77a724604ad139ca762 (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < a1e3fffe02e05c05357af91364ac0fc1ed425b5b (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < f76fcb9d43ec014ac4a1bb983768696d5b032df9 (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < 83b4e3d878ea6be9aec1d5a1ab177c766c64d1a0 (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < 8258d84a7917aeece773716518deadb7ad776cb7 (git)
Affected: a3998799fb4df0b0af8271a7d50c4269032397aa , < 98dba02d9a93eec11bffbb93c7c51624290702d2 (git)
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    Linux Linux Affected: 3.1
Unaffected: 0 , < 3.1 (semver)
Unaffected: 4.14.315 , ≤ 4.14.* (semver)
Unaffected: 4.19.283 , ≤ 4.19.* (semver)
Unaffected: 5.4.243 , ≤ 5.4.* (semver)
Unaffected: 5.10.180 , ≤ 5.10.* (semver)
Unaffected: 5.15.111 , ≤ 5.15.* (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/md/dm-flakey.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "3.1"
            },
            {
              "lessThan": "3.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.315",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.283",
              "versionType": "semver"
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              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
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              "version": "6.2.15",
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              "lessThanOrEqual": "6.3.*",
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              "version": "6.3.2",
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "cpeApplicability": [
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm flakey: fix a crash with invalid table line\n\nThis command will crash with NULL pointer dereference:\n dmsetup create flakey --table \\\n  \"0 `blockdev --getsize /dev/ram0` flakey /dev/ram0 0 0 1 2 corrupt_bio_byte 512\"\n\nFix the crash by checking if arg_name is non-NULL before comparing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T10:32:51.357Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f95cb1526669ccdf7eb12eefd57a893953e3595f"
        },
        {
          "url": "https://git.kernel.org/stable/c/12849ed107c0b2869fb775c81208050899006f07"
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          "url": "https://git.kernel.org/stable/c/337b7af273562b73c46ef77a724604ad139ca762"
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        {
          "url": "https://git.kernel.org/stable/c/f76fcb9d43ec014ac4a1bb983768696d5b032df9"
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          "url": "https://git.kernel.org/stable/c/cb874a190f3f7c3c3fa5b979bee7a3b8cc3a19cc"
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          "url": "https://git.kernel.org/stable/c/8258d84a7917aeece773716518deadb7ad776cb7"
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        {
          "url": "https://git.kernel.org/stable/c/98dba02d9a93eec11bffbb93c7c51624290702d2"
        }
      ],
      "title": "dm flakey: fix a crash with invalid table line",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53786",
    "datePublished": "2025-12-09T00:00:41.426Z",
    "dateReserved": "2025-12-08T23:58:35.273Z",
    "dateUpdated": "2026-01-05T10:32:51.357Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • 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.
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  • 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.



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