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GHSA-PJ8G-XGCW-9P63

Vulnerability from github – Published: 2024-08-08 09:30 – Updated: 2025-03-24 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

io_uring: fix error pbuf checking

Syz reports a problem, which boils down to NULL vs IS_ERR inconsistent error handling in io_alloc_pbuf_ring().

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:__io_remove_buffers+0xac/0x700 io_uring/kbuf.c:341 Call Trace: io_put_bl io_uring/kbuf.c:378 [inline] io_destroy_buffers+0x14e/0x490 io_uring/kbuf.c:392 io_ring_ctx_free+0xa00/0x1070 io_uring/io_uring.c:2613 io_ring_exit_work+0x80f/0x8a0 io_uring/io_uring.c:2844 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-08T09:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: fix error pbuf checking\n\nSyz reports a problem, which boils down to NULL vs IS_ERR inconsistent\nerror handling in io_alloc_pbuf_ring().\n\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:__io_remove_buffers+0xac/0x700 io_uring/kbuf.c:341\nCall Trace:\n \u003cTASK\u003e\n io_put_bl io_uring/kbuf.c:378 [inline]\n io_destroy_buffers+0x14e/0x490 io_uring/kbuf.c:392\n io_ring_ctx_free+0xa00/0x1070 io_uring/io_uring.c:2613\n io_ring_exit_work+0x80f/0x8a0 io_uring/io_uring.c:2844\n process_one_work kernel/workqueue.c:3231 [inline]\n process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312\n worker_thread+0x86d/0xd40 kernel/workqueue.c:3390\n kthread+0x2f0/0x390 kernel/kthread.c:389\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244",
  "id": "GHSA-pj8g-xgcw-9p63",
  "modified": "2025-03-24T18:30:43Z",
  "published": "2024-08-08T09:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68d19af95a353f5e2b021602180b65b303eba99d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78aefac7efdffddf7889405b7c08e6e0f030fa35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcc87d978b834c298bbdd9c52454c5d0a946e97e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42254 (GCVE-0-2024-42254)

Vulnerability from cvelistv5 – Published: 2024-08-08 08:49 – Updated: 2026-05-11 20:28

Title

io_uring: fix error pbuf checking

Summary

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix error pbuf checking Syz reports a problem, which boils down to NULL vs IS_ERR inconsistent error handling in io_alloc_pbuf_ring(). KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:__io_remove_buffers+0xac/0x700 io_uring/kbuf.c:341 Call Trace: <TASK> io_put_bl io_uring/kbuf.c:378 [inline] io_destroy_buffers+0x14e/0x490 io_uring/kbuf.c:392 io_ring_ctx_free+0xa00/0x1070 io_uring/io_uring.c:2613 io_ring_exit_work+0x80f/0x8a0 io_uring/io_uring.c:2844 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:13 UTC

Assigner

Linux mitre root Scorecard

References

3 references

URL	Tags
https://git.kernel.org/stable/c/78aefac7efdffddf7…
https://git.kernel.org/stable/c/68d19af95a353f5e2…
https://git.kernel.org/stable/c/bcc87d978b834c298…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 46b1b3d81a7e99574e1a2f914086bc2fe382d79d , < 78aefac7efdffddf7889405b7c08e6e0f030fa35 (git) Affected: 87585b05757dc70545efb434669708d276125559 , < 68d19af95a353f5e2b021602180b65b303eba99d (git) Affected: 87585b05757dc70545efb434669708d276125559 , < bcc87d978b834c298bbdd9c52454c5d0a946e97e (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.10.1 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-42254",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:13:06.431767Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:05.301Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "io_uring/kbuf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            }
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            },
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              "status": "unaffected",
              "version": "0",
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            },
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              "version": "6.10.1",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                {
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                  "versionStartIncluding": "6.10",
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                },
                {
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    "dateReserved": "2024-07-30T07:40:12.257Z",
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}

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.

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.
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GHSA-PJ8G-XGCW-9P63

CVE-2024-42254 (GCVE-0-2024-42254)

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