{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "46b1b3d81a7e99574e1a2f914086bc2fe382d79d"
            },
            {
              "fixed": "78aefac7efdffddf7889405b7c08e6e0f030fa35"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "87585b05757dc70545efb434669708d276125559"
            },
            {
              "fixed": "68d19af95a353f5e2b021602180b65b303eba99d"
            },
            {
              "fixed": "bcc87d978b834c298bbdd9c52454c5d0a946e97e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42254.json"
  },
  "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": "CVE-2024-42254",
  "modified": "2026-07-15T01:49:20.602267224Z",
  "published": "2024-08-08T08:49:14.289Z",
  "references": [
    {
      "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"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42254.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42254"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "io_uring: fix error pbuf checking"
}