{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52835",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52835"
  ],
  "published": "2024-05-21T15:34:20Z",
  "summary": "perf/core: Bail out early if the request AUX area is out of bound",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Bail out early if the request AUX area is out of bound\n\nWhen perf-record with a large AUX area, e.g 4GB, it fails with:\n\n    #perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1\n    failed to mmap with 12 (Cannot allocate memory)\n\nand it reveals a WARNING with __alloc_pages():\n\n\t------------[ cut here ]------------\n\tWARNING: CPU: 44 PID: 17573 at mm/page_alloc.c:5568 __alloc_pages+0x1ec/0x248\n\tCall trace:\n\t __alloc_pages+0x1ec/0x248\n\t __kmalloc_large_node+0xc0/0x1f8\n\t __kmalloc_node+0x134/0x1e8\n\t rb_alloc_aux+0xe0/0x298\n\t perf_mmap+0x440/0x660\n\t mmap_region+0x308/0x8a8\n\t do_mmap+0x3c0/0x528\n\t vm_mmap_pgoff+0xf4/0x1b8\n\t ksys_mmap_pgoff+0x18c/0x218\n\t __arm64_sys_mmap+0x38/0x58\n\t invoke_syscall+0x50/0x128\n\t el0_svc_common.constprop.0+0x58/0x188\n\t do_el0_svc+0x34/0x50\n\t el0_svc+0x34/0x108\n\t el0t_64_sync_handler+0xb8/0xc0\n\t el0t_64_sync+0x1a4/0x1a8\n\n'rb->aux_pages' allocated by kcalloc() is a pointer array which is used to\nmaintains AUX trace pages. The allocated page for this array is physically\ncontiguous (and virtually contiguous) with an order of 0..MAX_ORDER. If the\nsize of pointer array crosses the limitation set by MAX_ORDER, it reveals a\nWARNING.\n\nSo bail out early with -ENOMEM if the request AUX area is out of bound,\ne.g.:\n\n    #perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1\n    failed to mmap with 12 (Cannot allocate memory)",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1",
        "1:6.1.47-1+rpt2",
        "1:6.1.47-1+rpt4",
        "1:6.1.54-1+rpt2",
        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt2"
          },
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            "binary_version": "1:6.1.47-1+rpt2"
          },
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            "binary_name": "linux-image-6.1.0-rpi2-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
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          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
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          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          },
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            "binary_version": "1:6.1.54-1+rpt2"
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            "binary_version": "1:6.1.54-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi4-rpi-v8",
            "binary_version": "1:6.1.54-1+rpt2"
          },
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          },
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          },
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            "binary_version": "1:6.1.58-1+rpt2"
          },
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            "binary_version": "1:6.1.58-1+rpt2"
          },
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          },
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            "binary_version": "1:6.1.63-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
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            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.64"
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          "1:6.1.47-1+rpt2": {
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            "compiled_filter": false
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            "assessment": "commit ancestry (strak rule)",
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            "linux_commit": null,
            "upstream_version": "6.1.63",
            "assessment": "upstream version (no usable Linux commit)",
            "upstream_fixed": "6.1.64"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52835"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8c504f615d7ed60ae035c51d0c789137ced6797f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/788c0b3442ead737008934947730a6d1ff703734"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1a2a4202c60fcdffbf04f259002ce9bff39edece"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd0df3f8719201dbe61a4d39083d5aecd705399a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9ce4e87a8efd37c85766ec08b15e885cab08553a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2424410f94a94d91230ced094062d859714c984a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2e905e608e38cf7f8dcddcf8a6036e91a78444cb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/54aee5f15b83437f23b2b2469bcf21bdd9823916"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}