{
  "cveId": "CVE-2023-54086",
  "url": "https://patchblox.com/security/cve/CVE-2023-54086",
  "summary": "CVE-2023-54086 is fixed in 20 products on 1 platform, first by ALAS2023-2023-228, released June 21, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Add preempt_count_{sub,add} into btf id den...",
  "description": "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\u002B #4 [  867.843100] Call Trace: [  867.843101]  \u003CTASK\u003E [  867.843104]  asm_exc_int3\u002B0x3a/0x40 [  867.843108] RIP: 0010:preempt_count_sub\u002B0x1/0xa0 [  867.843135]  __bpf_prog_enter_recur\u002B0x17/0x90 [  867.843148]  bpf_trampoline_6442468108_0\u002B0x2e/0x1000 [  867.843154]  ? preempt_count_sub\u002B0x1/0xa0 [  867.843157]  preempt_count_sub\u002B0x5/0xa0 [  867.843159]  ? migrate_enable\u002B0xac/0xf0 [  867.843164]  __bpf_prog_exit_recur\u002B0x2d/0x40 [  867.843168]  bpf_trampoline_6442468108_0\u002B0x55/0x1000 ... [  867.843788]  preempt_count_sub\u002B0x5/0xa0 [  867.843793]  ? migrate_enable\u002B0xac/0xf0 [  867.843829]  __bpf_prog_exit_recur\u002B0x2d/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_6442468108_0\u002B0x55/0x1000 ...  That is because in __bpf_prog_exit_recur, the preempt_count_{sub,add} are called after prog-\u003Eactive is decreased.  Fixing this by adding these two functions into btf ids deny list.",
  "published": "2023-06-21T19:11:00Z",
  "severity": "important",
  "epss": 0.00208,
  "epssPercentile": 0.11021,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.34-56.100",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-54086",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54086",
      "released": "2025-12-24T13:16:10Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54086",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54086",
      "released": "2025-12-24T13:16:10Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54086",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54086",
      "released": "2025-12-24T13:16:10Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}