bpf: Add preempt_count_{sub,add} into btf id deny list

{
  "id": "ea83147374105f74f11874a074c41eaef2a7fdcc55e50ae728efb7f0f9a9f437",
  "url": "https://osv.dev/vulnerability/CVE-2023-54086",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bpf: Add preempt_count_{sub,add} into btf id deny list",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bpf: Add preempt_count_{sub,add} into btf id deny list The recursion check in __bpf_prog_enter* and __bpf_prog_exit* leave preempt_count_{sub,add} unprotected. When attaching trampoline to them we get panic as follows, [ 867.843050] BUG: TASK stack guard page was hit at 0000000009d325cf (stack is 0000000046a46a15..00000000537e7b28) [ 867.843064] stack guard page: 0000 [#1] PREEMPT SMP NOPTI [ 867.843067] CPU: 8 PID: 11009 Comm: trace Kdump: loaded Not tainted 6.2.0+ #4 [ 867.843100] Call Trace: [ 867.843101] [ 867.843104] asm_exc_int3+0x3a/0x40 [ 867.843108] RIP: 0010:preempt_count_sub+0x1/0xa0 [ 867.843135] __bpf_prog_enter_recur+0x17/0x90 [ 867.843148] bpf_trampoline_6442468108_0+0x2e/0x1000 [ 867.843154] ? preempt_count_sub+0x1/0xa0 [ 867.843157] preempt_count_sub+0x5/0xa0 [ 867.843159] ? migrate_enable+0xac/0xf0 [ 867.843164] __bpf_prog_exit_recur+0x2d/0x40 [ 867.843168] bpf_trampoline_6442468108_0+0x55/0x1000 ... [ 867.843788] preempt_count_sub+0x5/0xa0 [ 867.843793] ? migrate_enable+0xac/0xf0 [ 867.843829] __bpf_prog_exit_recur+0x2d/0x40 [ 867.843837] BUG: IRQ stack guard page was hit at 0000000099bd8228 (stack is 00000000b23e2bc4..000000006d95af35) [ 867.843841] BUG: IRQ stack guard page was hit at 000000005ae07924 (stack is 00000000ffd69623..0000000014eb594c) [ 867.843843] BUG: IRQ stack guard page was hit at 00000000028320f0 (stack is 00000000034b6438..0000000078d1bcec) [ 867.843842] bpf_trampoline_6",
    "evidence": "osv:CVE-2023-54086",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.113",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.3.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-54086",
      "aliases": [
        "CVE-2023-54086"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "35e3815fa8102fab4dee75f3547472c66581125d"
                },
                {
                  "fixed": "095018267c87b8bfbbb12eeb1c0ebf2359e1782c"
                },
                {
                  "fixed": "60039bf72f81638baa28652a11a68e9b0b7b5b2d"
                },
                {
                  "fixed": "b9168d41b83d182f34ba927ee822edaee18d5fc8"
                },
                {
                  "fixed": "c11bd046485d7bf1ca200db0e7d0bdc4bafdd395"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5.12.11"
                },
                {
                  "fixed": "5.13"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f5e770c0c60ab8812574a2e0d163b0efa816a825"
                }
              ]
            }
          ],
          "versions": [
            "v5.12.19",
            "v5.12.18",
            "v5.12.17",
            "v5.12.16",
            "v5.12.15",
            "v5.12.14",
            "v5.12.13",
            "v5.12.12",
            "v5.12.11"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54086.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.13.0"
                },
                {
                  "fixed": "5.15.113"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.30"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.3.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54086.json"
          }
        }
      ],
      "modified": "2026-10-08T02:48:02.760161835Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/095018267c87b8bfbbb12eeb1c0ebf2359e1782c",
        "https://git.kernel.org/stable/c/60039bf72f81638baa28652a11a68e9b0b7b5b2d",
        "https://git.kernel.org/stable/c/b9168d41b83d182f34ba927ee822edaee18d5fc8",
        "https://git.kernel.org/stable/c/c11bd046485d7bf1ca200db0e7d0bdc4bafdd395",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54086.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54086",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54086.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54086",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 98257,
  "published_at": "2025-12-24T13:06:16.857+00:00"
}