FKIE_CVE-2023-52699

Vulnerability from fkie_nvd - Published: 2024-05-19 11:15 - Updated: 2026-10-15 01:17
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
In the Linux kernel, the following vulnerability has been resolved: sysv: don't call sb_bread() with pointers_lock held syzbot is reporting sleep in atomic context in SysV filesystem [1], for sb_bread() is called with rw_spinlock held. A "write_lock(&pointers_lock) => read_lock(&pointers_lock) deadlock" bug and a "sb_bread() with write_lock(&pointers_lock)" bug were introduced by "Replace BKL for chain locking with sysvfs-private rwlock" in Linux 2.5.12. Then, "[PATCH] err1-40: sysvfs locking fix" in Linux 2.6.8 fixed the former bug by moving pointers_lock lock to the callers, but instead introduced a "sb_bread() with read_lock(&pointers_lock)" bug (which made this problem easier to hit). Al Viro suggested that why not to do like get_branch()/get_block()/ find_shared() in Minix filesystem does. And doing like that is almost a revert of "[PATCH] err1-40: sysvfs locking fix" except that get_branch() from with find_shared() is called without write_lock(&pointers_lock).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13b33feb2ebddc2b1aa607f553566b18a4af1d76Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b4fe801b5bedec2b622ddb18e5c9bf26c63d79fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/53cb1e52c9db618c08335984d1ca80db220ccf09Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/674c1c4229e743070e09db63a23442950ff000d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89e8524135a3902e7563a5a59b7b5ec1bf4904acPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a69224223746ab96d43e5db9d22d136827b7e2d3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f123dc86388cb669c3d6322702dc441abc35c31ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd203d2c671bdee9ab77090ff394d3b71b627927Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/13b33feb2ebddc2b1aa607f553566b18a4af1d76Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1b4fe801b5bedec2b622ddb18e5c9bf26c63d79fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/53cb1e52c9db618c08335984d1ca80db220ccf09Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/674c1c4229e743070e09db63a23442950ff000d1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/89e8524135a3902e7563a5a59b7b5ec1bf4904acPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a69224223746ab96d43e5db9d22d136827b7e2d3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f123dc86388cb669c3d6322702dc441abc35c31ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fd203d2c671bdee9ab77090ff394d3b71b627927Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlMailing List, Third Party Advisory
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 10.0
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysv: don\u0027t call sb_bread() with pointers_lock held\n\nsyzbot is reporting sleep in atomic context in SysV filesystem [1], for\nsb_bread() is called with rw_spinlock held.\n\nA \"write_lock(\u0026pointers_lock) =\u003e read_lock(\u0026pointers_lock) deadlock\" bug\nand a \"sb_bread() with write_lock(\u0026pointers_lock)\" bug were introduced by\n\"Replace BKL for chain locking with sysvfs-private rwlock\" in Linux 2.5.12.\n\nThen, \"[PATCH] err1-40: sysvfs locking fix\" in Linux 2.6.8 fixed the\nformer bug by moving pointers_lock lock to the callers, but instead\nintroduced a \"sb_bread() with read_lock(\u0026pointers_lock)\" bug (which made\nthis problem easier to hit).\n\nAl Viro suggested that why not to do like get_branch()/get_block()/\nfind_shared() in Minix filesystem does. And doing like that is almost a\nrevert of \"[PATCH] err1-40: sysvfs locking fix\" except that get_branch()\n from with find_shared() is called without write_lock(\u0026pointers_lock)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: sysv: no llame a sb_bread() con pointers_lock retenido syzbot informa suspensi\u00f3n en contexto at\u00f3mico en el sistema de archivos SysV [1], porque sb_bread() se llama con rw_spinlock retenido. Un error \"write_lock(\u0026amp;pointers_lock) =\u0026gt; read_lock(\u0026amp;pointers_lock) deadlock\" y un error \"sb_bread() with write_lock(\u0026amp;pointers_lock)\" fueron introducidos por \"Reemplazar BKL para bloqueo de cadena con sysvfs-private rwlock\" en Linux 2.5.12. Luego, \"[PATCH] err1-40: correcci\u00f3n de bloqueo de sysvfs\" en Linux 2.6.8 solucion\u00f3 el error anterior moviendo el bloqueo pointers_lock a las personas que llaman, pero en su lugar introdujo un error \"sb_bread() con read_lock(\u0026amp;pointers_lock)\" (que hizo que esto problema m\u00e1s f\u00e1cil de abordar). Al Viro sugiri\u00f3 que por qu\u00e9 no hacer lo que hace get_branch()/get_block()/find_shared() en el sistema de archivos Minix. Y hacer eso es casi una reversi\u00f3n de \"[PATCH] err1-40: correcci\u00f3n de bloqueo de sysvfs\", excepto que get_branch() de find_shared() se llama sin write_lock(\u0026amp;pointers_lock)."
    }
  ],
  "id": "CVE-2023-52699",
  "lastModified": "2026-10-15T01:17:16.273",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-52699",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-21T15:05:59.108260Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-19T11:15:47.507",
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    {
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.