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

Vulnerability from cvelistv5 – Published: 2024-08-08 08:49 – Updated: 2026-05-11 20:28
VLAI
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 CNA under the mitre root
CNA scorecard D 53/100 over 6843 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 46b1b3d81a7e99574e1a2f914086bc2fe382d79d , < 78aefac7efdffddf7889405b7c08e6e0f030fa35 (git)
Affected: 87585b05757dc70545efb434669708d276125559 , < 68d19af95a353f5e2b021602180b65b303eba99d (git)
Affected: 87585b05757dc70545efb434669708d276125559 , < bcc87d978b834c298bbdd9c52454c5d0a946e97e (git)
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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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Show details on NVD website
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              "value": "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"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:28:47.215Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/78aefac7efdffddf7889405b7c08e6e0f030fa35"
            },
            {
              "url": "https://git.kernel.org/stable/c/68d19af95a353f5e2b021602180b65b303eba99d"
            },
            {
              "url": "https://git.kernel.org/stable/c/bcc87d978b834c298bbdd9c52454c5d0a946e97e"
            }
          ],
          "title": "io_uring: fix error pbuf checking",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-42254",
        "datePublished": "2024-08-08T08:49:14.289Z",
        "dateReserved": "2024-07-30T07:40:12.257Z",
        "dateUpdated": "2026-05-11T20:28:47.215Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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