GHSA-P6XG-GJ77-6VPG

Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2025-09-24 00:30
VLAI
Details

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

perf/core: Bail out early if the request AUX area is out of bound

When perf-record with a large AUX area, e.g 4GB, it fails with:

#perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1
failed to mmap with 12 (Cannot allocate memory)

and it reveals a WARNING with __alloc_pages():

------------[ cut here ]------------
WARNING: CPU: 44 PID: 17573 at mm/page_alloc.c:5568 __alloc_pages+0x1ec/0x248
Call trace:
 __alloc_pages+0x1ec/0x248
 __kmalloc_large_node+0xc0/0x1f8
 __kmalloc_node+0x134/0x1e8
 rb_alloc_aux+0xe0/0x298
 perf_mmap+0x440/0x660
 mmap_region+0x308/0x8a8
 do_mmap+0x3c0/0x528
 vm_mmap_pgoff+0xf4/0x1b8
 ksys_mmap_pgoff+0x18c/0x218
 __arm64_sys_mmap+0x38/0x58
 invoke_syscall+0x50/0x128
 el0_svc_common.constprop.0+0x58/0x188
 do_el0_svc+0x34/0x50
 el0_svc+0x34/0x108
 el0t_64_sync_handler+0xb8/0xc0
 el0t_64_sync+0x1a4/0x1a8

'rb->aux_pages' allocated by kcalloc() is a pointer array which is used to maintains AUX trace pages. The allocated page for this array is physically contiguous (and virtually contiguous) with an order of 0..MAX_ORDER. If the size of pointer array crosses the limitation set by MAX_ORDER, it reveals a WARNING.

So bail out early with -ENOMEM if the request AUX area is out of bound, e.g.:

#perf record -C 0 -m ,4G -e arm_spe_0// -- sleep 1
failed to mmap with 12 (Cannot allocate memory)
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-52835"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:21Z",
    "severity": "HIGH"
  },
  "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\u0027rb-\u003eaux_pages\u0027 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)",
  "id": "GHSA-p6xg-gj77-6vpg",
  "modified": "2025-09-24T00:30:40Z",
  "published": "2024-05-21T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52835"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a2a4202c60fcdffbf04f259002ce9bff39edece"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2424410f94a94d91230ced094062d859714c984a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e905e608e38cf7f8dcddcf8a6036e91a78444cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54aee5f15b83437f23b2b2469bcf21bdd9823916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/788c0b3442ead737008934947730a6d1ff703734"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c504f615d7ed60ae035c51d0c789137ced6797f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ce4e87a8efd37c85766ec08b15e885cab08553a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd0df3f8719201dbe61a4d39083d5aecd705399a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.