Vulnerability-Lookup

FKIE_CVE-2023-52848

Vulnerability from fkie_nvd - Published: 2024-05-21 16:15 - Updated: 2026-06-17 06:43

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop meta_inode's page cache in f2fs_put_super() syzbot reports a kernel bug as below: F2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1 kernel BUG at fs/f2fs/super.c:1639! CPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0 RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639 Call Trace: generic_shutdown_super+0x161/0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde/0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd In f2fs_put_super(), it tries to do sanity check on dirty and IO reference count of f2fs, once there is any reference count leak, it will trigger panic. The root case is, during f2fs_put_super(), if there is any IO error in f2fs_wait_on_all_pages(), we missed to truncate meta_inode's page cache later, result in panic, fix this case.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192	Patch

Impacted products

	Vendor	Product	Version
	linux	linux_kernel	*
	linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/super.c"
          ],
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          "versions": [
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()\n\nsyzbot reports a kernel bug as below:\n\nF2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1\nkernel BUG at fs/f2fs/super.c:1639!\nCPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0\nRIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639\nCall Trace:\n generic_shutdown_super+0x161/0x3c0 fs/super.c:693\n kill_block_super+0x3b/0x70 fs/super.c:1646\n kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879\n deactivate_locked_super+0x9a/0x170 fs/super.c:481\n deactivate_super+0xde/0x100 fs/super.c:514\n cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254\n task_work_run+0x14d/0x240 kernel/task_work.c:179\n resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]\n exit_to_user_mode_loop kernel/entry/common.c:171 [inline]\n exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204\n __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\n syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296\n do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nIn f2fs_put_super(), it tries to do sanity check on dirty and IO\nreference count of f2fs, once there is any reference count leak,\nit will trigger panic.\n\nThe root case is, during f2fs_put_super(), if there is any IO error\nin f2fs_wait_on_all_pages(), we missed to truncate meta_inode\u0027s page\ncache later, result in panic, fix this case."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: f2fs: correcci\u00f3n para eliminar el cach\u00e9 de la p\u00e1gina de meta_inode en f2fs_put_super() syzbot informa un error en el kernel como se muestra a continuaci\u00f3n: F2FS-fs (loop1): detecta p\u00e9rdida del recuento de referencias del sistema de archivos durante el desmontaje, escriba: 10 , recuento: \u00a11 BUG del kernel en fs/f2fs/super.c:1639! CPU: 0 PID: 15451 Comm: syz-executor.1 No contaminado 6.5.0-syzkaller-09338-ge0152e7481c6 #0 RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639 Seguimiento de llamadas: generic_shutdown_super+0x161 /0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde /0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [en l\u00ednea] exit_to_user_mode_loop kernel/entry /common.c:171 [en l\u00ednea] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [en l\u00ednea] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 Entry_SYSCALL_64_after_hwframe+0x63/0xcd En f2fs_put_super(), intenta realizar una verificaci\u00f3n de cordura en el recuento de referencias sucias y de IO de f2fs, una vez que hay alguna fuga en el recuento de referencias, provocar\u00e1 p\u00e1nico. El caso ra\u00edz es que, durante f2fs_put_super(), si hay alg\u00fan error de IO en f2fs_wait_on_all_pages(), no pudimos truncar el cach\u00e9 de la p\u00e1gina de meta_inode m\u00e1s tarde, lo que gener\u00f3 p\u00e1nico, solucionemos este caso."
    }
  ],
  "id": "CVE-2023-52848",
  "lastModified": "2026-06-17T06:43:43.597",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "value": "NVD-CWE-Other"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-52848 (GCVE-0-2023-52848)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:31 – Updated: 2026-05-23 15:27

Title

f2fs: fix to drop meta_inode's page cache in f2fs_put_super()

Summary

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-21 17:54 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/eb42e1862aa7934c2…
https://git.kernel.org/stable/c/10b2a6c0dade67b5a…
https://git.kernel.org/stable/c/a4639380bbe66172d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 20872584b8c0b006c007da9588a272c9e28d2e18 , < eb42e1862aa7934c2c21890097ce4993c5e0d192 (git) Affected: 20872584b8c0b006c007da9588a272c9e28d2e18 , < 10b2a6c0dade67b5a2b2d17fb75c457ea1985fad (git) Affected: 20872584b8c0b006c007da9588a272c9e28d2e18 , < a4639380bbe66172df329f8b54aa7d2e943f0f64 (git) Affected: 0e2577074b459bba7f4016f4d725ede37d48bb22 (git) Affected: 6.4.16 , < 6.5 (semver)
Linux	Linux	Affected: 6.5 Unaffected: 0 , < 6.5 (semver) Unaffected: 6.5.12 , ≤ 6.5.* (semver) Unaffected: 6.6.2 , ≤ 6.6.* (semver) Unaffected: 6.7 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "metrics": [
          {
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                "id": "CVE-2023-52848",
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                "timestamp": "2024-05-21T17:54:45.651350Z",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()\n\nsyzbot reports a kernel bug as below:\n\nF2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1\nkernel BUG at fs/f2fs/super.c:1639!\nCPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0\nRIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639\nCall Trace:\n generic_shutdown_super+0x161/0x3c0 fs/super.c:693\n kill_block_super+0x3b/0x70 fs/super.c:1646\n kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879\n deactivate_locked_super+0x9a/0x170 fs/super.c:481\n deactivate_super+0xde/0x100 fs/super.c:514\n cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254\n task_work_run+0x14d/0x240 kernel/task_work.c:179\n resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]\n exit_to_user_mode_loop kernel/entry/common.c:171 [inline]\n exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204\n __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\n syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296\n do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nIn f2fs_put_super(), it tries to do sanity check on dirty and IO\nreference count of f2fs, once there is any reference count leak,\nit will trigger panic.\n\nThe root case is, during f2fs_put_super(), if there is any IO error\nin f2fs_wait_on_all_pages(), we missed to truncate meta_inode\u0027s page\ncache later, result in panic, fix this case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:27:17.624Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192"
        },
        {
          "url": "https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64"
        }
      ],
      "title": "f2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52848",
    "datePublished": "2024-05-21T15:31:45.196Z",
    "dateReserved": "2024-05-21T15:19:24.255Z",
    "dateUpdated": "2026-05-23T15:27:17.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.