Vulnerability-Lookup

FKIE_CVE-2023-54086

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-06-17 06:46

Severity

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] <TASK> [ 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_6442468108_0+0x55/0x1000 ... That is because in __bpf_prog_exit_recur, the preempt_count_{sub,add} are called after prog->active is decreased. Fixing this by adding these two functions into btf ids deny list.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/095018267c87b8bfbbb12eeb1c0ebf2359e1782c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/60039bf72f81638baa28652a11a68e9b0b7b5b2d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b9168d41b83d182f34ba927ee822edaee18d5fc8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c11bd046485d7bf1ca200db0e7d0bdc4bafdd395

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "095018267c87b8bfbbb12eeb1c0ebf2359e1782c",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "60039bf72f81638baa28652a11a68e9b0b7b5b2d",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "b9168d41b83d182f34ba927ee822edaee18d5fc8",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "c11bd046485d7bf1ca200db0e7d0bdc4bafdd395",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f5e770c0c60ab8812574a2e0d163b0efa816a825",
              "versionType": "git"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add preempt_count_{sub,add} into btf id deny list\n\nThe recursion check in __bpf_prog_enter* and __bpf_prog_exit*\nleave preempt_count_{sub,add} unprotected. When attaching trampoline to\nthem we get panic as follows,\n\n[  867.843050] BUG: TASK stack guard page was hit at 0000000009d325cf (stack is 0000000046a46a15..00000000537e7b28)\n[  867.843064] stack guard page: 0000 [#1] PREEMPT SMP NOPTI\n[  867.843067] CPU: 8 PID: 11009 Comm: trace Kdump: loaded Not tainted 6.2.0+ #4\n[  867.843100] Call Trace:\n[  867.843101]  \u003cTASK\u003e\n[  867.843104]  asm_exc_int3+0x3a/0x40\n[  867.843108] RIP: 0010:preempt_count_sub+0x1/0xa0\n[  867.843135]  __bpf_prog_enter_recur+0x17/0x90\n[  867.843148]  bpf_trampoline_6442468108_0+0x2e/0x1000\n[  867.843154]  ? preempt_count_sub+0x1/0xa0\n[  867.843157]  preempt_count_sub+0x5/0xa0\n[  867.843159]  ? migrate_enable+0xac/0xf0\n[  867.843164]  __bpf_prog_exit_recur+0x2d/0x40\n[  867.843168]  bpf_trampoline_6442468108_0+0x55/0x1000\n...\n[  867.843788]  preempt_count_sub+0x5/0xa0\n[  867.843793]  ? migrate_enable+0xac/0xf0\n[  867.843829]  __bpf_prog_exit_recur+0x2d/0x40\n[  867.843837] BUG: IRQ stack guard page was hit at 0000000099bd8228 (stack is 00000000b23e2bc4..000000006d95af35)\n[  867.843841] BUG: IRQ stack guard page was hit at 000000005ae07924 (stack is 00000000ffd69623..0000000014eb594c)\n[  867.843843] BUG: IRQ stack guard page was hit at 00000000028320f0 (stack is 00000000034b6438..0000000078d1bcec)\n[  867.843842]  bpf_trampoline_6442468108_0+0x55/0x1000\n...\n\nThat is because in __bpf_prog_exit_recur, the preempt_count_{sub,add} are\ncalled after prog-\u003eactive is decreased.\n\nFixing this by adding these two functions into btf ids deny list."
    }
  ],
  "id": "CVE-2023-54086",
  "lastModified": "2026-06-17T06:46:46.620",
  "metrics": {},
  "published": "2025-12-24T13:16:10.453",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/095018267c87b8bfbbb12eeb1c0ebf2359e1782c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60039bf72f81638baa28652a11a68e9b0b7b5b2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b9168d41b83d182f34ba927ee822edaee18d5fc8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c11bd046485d7bf1ca200db0e7d0bdc4bafdd395"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2023-54086 (GCVE-0-2023-54086)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:06 – Updated: 2026-05-23 15:32

Title

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

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/095018267c87b8bfb…
https://git.kernel.org/stable/c/60039bf72f81638ba…
https://git.kernel.org/stable/c/b9168d41b83d182f3…
https://git.kernel.org/stable/c/c11bd046485d7bf1c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 35e3815fa8102fab4dee75f3547472c66581125d , < 095018267c87b8bfbbb12eeb1c0ebf2359e1782c (git) Affected: 35e3815fa8102fab4dee75f3547472c66581125d , < 60039bf72f81638baa28652a11a68e9b0b7b5b2d (git) Affected: 35e3815fa8102fab4dee75f3547472c66581125d , < b9168d41b83d182f34ba927ee822edaee18d5fc8 (git) Affected: 35e3815fa8102fab4dee75f3547472c66581125d , < c11bd046485d7bf1ca200db0e7d0bdc4bafdd395 (git) Affected: f5e770c0c60ab8812574a2e0d163b0efa816a825 (git) Affected: 5.12.11 , < 5.13 (semver)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.113 , ≤ 5.15.* (semver) Unaffected: 6.1.30 , ≤ 6.1.* (semver) Unaffected: 6.3.4 , ≤ 6.3.* (semver) Unaffected: 6.4 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "095018267c87b8bfbbb12eeb1c0ebf2359e1782c",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "60039bf72f81638baa28652a11a68e9b0b7b5b2d",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "b9168d41b83d182f34ba927ee822edaee18d5fc8",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "lessThan": "c11bd046485d7bf1ca200db0e7d0bdc4bafdd395",
              "status": "affected",
              "version": "35e3815fa8102fab4dee75f3547472c66581125d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f5e770c0c60ab8812574a2e0d163b0efa816a825",
              "versionType": "git"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.113",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.30",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.4",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.12.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add preempt_count_{sub,add} into btf id deny list\n\nThe recursion check in __bpf_prog_enter* and __bpf_prog_exit*\nleave preempt_count_{sub,add} unprotected. When attaching trampoline to\nthem we get panic as follows,\n\n[  867.843050] BUG: TASK stack guard page was hit at 0000000009d325cf (stack is 0000000046a46a15..00000000537e7b28)\n[  867.843064] stack guard page: 0000 [#1] PREEMPT SMP NOPTI\n[  867.843067] CPU: 8 PID: 11009 Comm: trace Kdump: loaded Not tainted 6.2.0+ #4\n[  867.843100] Call Trace:\n[  867.843101]  \u003cTASK\u003e\n[  867.843104]  asm_exc_int3+0x3a/0x40\n[  867.843108] RIP: 0010:preempt_count_sub+0x1/0xa0\n[  867.843135]  __bpf_prog_enter_recur+0x17/0x90\n[  867.843148]  bpf_trampoline_6442468108_0+0x2e/0x1000\n[  867.843154]  ? preempt_count_sub+0x1/0xa0\n[  867.843157]  preempt_count_sub+0x5/0xa0\n[  867.843159]  ? migrate_enable+0xac/0xf0\n[  867.843164]  __bpf_prog_exit_recur+0x2d/0x40\n[  867.843168]  bpf_trampoline_6442468108_0+0x55/0x1000\n...\n[  867.843788]  preempt_count_sub+0x5/0xa0\n[  867.843793]  ? migrate_enable+0xac/0xf0\n[  867.843829]  __bpf_prog_exit_recur+0x2d/0x40\n[  867.843837] BUG: IRQ stack guard page was hit at 0000000099bd8228 (stack is 00000000b23e2bc4..000000006d95af35)\n[  867.843841] BUG: IRQ stack guard page was hit at 000000005ae07924 (stack is 00000000ffd69623..0000000014eb594c)\n[  867.843843] BUG: IRQ stack guard page was hit at 00000000028320f0 (stack is 00000000034b6438..0000000078d1bcec)\n[  867.843842]  bpf_trampoline_6442468108_0+0x55/0x1000\n...\n\nThat is because in __bpf_prog_exit_recur, the preempt_count_{sub,add} are\ncalled after prog-\u003eactive is decreased.\n\nFixing this by adding these two functions into btf ids deny list."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:32:32.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/095018267c87b8bfbbb12eeb1c0ebf2359e1782c"
        },
        {
          "url": "https://git.kernel.org/stable/c/60039bf72f81638baa28652a11a68e9b0b7b5b2d"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9168d41b83d182f34ba927ee822edaee18d5fc8"
        },
        {
          "url": "https://git.kernel.org/stable/c/c11bd046485d7bf1ca200db0e7d0bdc4bafdd395"
        }
      ],
      "title": "bpf: Add preempt_count_{sub,add} into btf id deny list",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54086",
    "datePublished": "2025-12-24T13:06:16.857Z",
    "dateReserved": "2025-12-24T13:02:52.515Z",
    "dateUpdated": "2026-05-23T15:32:32.011Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2023-54086

CVE-2023-54086 (GCVE-0-2023-54086)

Tags

Sightings

Nomenclature