Vulnerability-Lookup

FKIE_CVE-2026-43157

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-13 21:09

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: fix bitmap leaks The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap) are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit(). Unbinding and rebinding the driver therefore triggers kmemleak: unreferenced object (size 16): backtrace: rvu_alloc_bitmap cgx_probe Free both bitmaps during teardown.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3B9A8D13-BEFF-47C0-956C-415602FDDAAF",
              "versionEndExcluding": "6.1.165",
              "versionStartIncluding": "5.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2",
              "versionEndExcluding": "6.6.128",
              "versionStartIncluding": "6.2",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2",
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              "vulnerable": true
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              "versionEndExcluding": "6.19.6",
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: CGX: fix bitmap leaks\n\nThe RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)\nare allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().\nUnbinding and rebinding the driver therefore triggers kmemleak:\n\n    unreferenced object (size 16):\n        backtrace:\n          rvu_alloc_bitmap\n          cgx_probe\n\nFree both bitmaps during teardown."
    }
  ],
  "id": "CVE-2026-43157",
  "lastModified": "2026-05-13T21:09:08.057",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-05-06T12:16:33.563",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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    },
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      "tags": [
        "Patch"
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-43157 (GCVE-0-2026-43157)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 22:18

Title

octeontx2-af: CGX: fix bitmap leaks

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/ad8a13a45c5c24d0d…
https://git.kernel.org/stable/c/013ac469596a0b867…
https://git.kernel.org/stable/c/ccef79af58b43787c…
https://git.kernel.org/stable/c/6d389382ee6551280…
https://git.kernel.org/stable/c/ccca14bbdcc25829d…
https://git.kernel.org/stable/c/3def995c4ede842ad…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e740003874edc13e468d19233f99787bedb4bb8e , < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 013ac469596a0b8671e62d89c89ae0bd46bbe667 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < ccef79af58b43787c25710c9da96651c6ddfe50f (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 6d389382ee655128056fbdab86baad8495ffbf33 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < ccca14bbdcc25829d355b9f4d3249f43dadb71c1 (git) Affected: e740003874edc13e468d19233f99787bedb4bb8e , < 3def995c4ede842adf509c410e92d09a0cedc965 (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/af/cgx.c"
          ],
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        },
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        {
          "url": "https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965"
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      ],
      "title": "octeontx2-af: CGX: fix bitmap leaks",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    "cveId": "CVE-2026-43157",
    "datePublished": "2026-05-06T11:27:37.185Z",
    "dateReserved": "2026-05-01T14:12:55.990Z",
    "dateUpdated": "2026-05-11T22:18:51.830Z",
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}

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-2026-43157

CVE-2026-43157 (GCVE-0-2026-43157)

Tags

Sightings

Nomenclature