{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-38383",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-38383"
  ],
  "published": "2025-07-25T12:55:41Z",
  "summary": "mm/vmalloc: fix data race in show_numa_info()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmalloc: fix data race in show_numa_info()\n\nThe following data-race was found in show_numa_info():\n\n==================================================================\nBUG: KCSAN: data-race in vmalloc_info_show / vmalloc_info_show\n\nread to 0xffff88800971fe30 of 4 bytes by task 8289 on cpu 0:\n show_numa_info mm/vmalloc.c:4936 [inline]\n vmalloc_info_show+0x5a8/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nwrite to 0xffff88800971fe30 of 4 bytes by task 8287 on cpu 1:\n show_numa_info mm/vmalloc.c:4934 [inline]\n vmalloc_info_show+0x38f/0x7e0 mm/vmalloc.c:5016\n seq_read_iter+0x373/0xb40 fs/seq_file.c:230\n proc_reg_read_iter+0x11e/0x170 fs/proc/inode.c:299\n....\n\nvalue changed: 0x0000008f -> 0x00000000\n==================================================================\n\nAccording to this report,there is a read/write data-race because\nm->private is accessible to multiple CPUs.  To fix this, instead of\nallocating the heap in proc_vmalloc_init() and passing the heap address to\nm->private, vmalloc_info_show() should allocate the heap.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-38383"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ead91de35d9cd5c4f80ec51e6020f342079170af"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c966f447a584ece3c70395898231aeb56256ee7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c5f0468d172ddec2e333d738d2a1f85402cf0bc"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}