CVE-2026-43157 (GCVE-0-2026-43157)
Vulnerability from cvelistv5
Published
2026-05-06 11:27
Modified
2026-05-11 22:18
Severity ?
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
Impacted products
Vendor Product Version
Linux Linux Version: e740003874edc13e468d19233f99787bedb4bb8e
Version: e740003874edc13e468d19233f99787bedb4bb8e
Version: e740003874edc13e468d19233f99787bedb4bb8e
Version: e740003874edc13e468d19233f99787bedb4bb8e
Version: e740003874edc13e468d19233f99787bedb4bb8e
Version: e740003874edc13e468d19233f99787bedb4bb8e
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/af/cgx.c"
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      "cpeApplicability": [
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          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:18:51.830Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece"
        },
        {
          "url": "https://git.kernel.org/stable/c/013ac469596a0b8671e62d89c89ae0bd46bbe667"
        },
        {
          "url": "https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33"
        },
        {
          "url": "https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965"
        }
      ],
      "title": "octeontx2-af: CGX: fix bitmap leaks",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "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",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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