CVE-2026-53297 (GCVE-0-2026-53297)
Vulnerability from cvelistv5
Published
2026-06-26 19:40
Modified
2026-06-26 19:40
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: mana: Guard mana_remove against double invocation If PM resume fails (e.g., mana_attach() returns an error), mana_probe() calls mana_remove(), which tears down the device and sets gd->gdma_context = NULL and gd->driver_data = NULL. However, a failed resume callback does not automatically unbind the driver. When the device is eventually unbound, mana_remove() is invoked a second time. Without a NULL check, it dereferences gc->dev with gc == NULL, causing a kernel panic. Add an early return if gdma_context or driver_data is NULL so the second invocation is harmless. Move the dev = gc->dev assignment after the guard so it cannot dereference NULL.
References
Impacted products
Vendor Product Version
Linux Linux Version: 635096a86edb067d55a1e04b4a918f5c6dac0c51
Version: 635096a86edb067d55a1e04b4a918f5c6dac0c51
Version: 635096a86edb067d55a1e04b4a918f5c6dac0c51
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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "5.16"
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              "status": "unaffected",
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              "status": "unaffected",
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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\nnet: mana: Guard mana_remove against double invocation\n\nIf PM resume fails (e.g., mana_attach() returns an error), mana_probe()\ncalls mana_remove(), which tears down the device and sets\ngd-\u003egdma_context = NULL and gd-\u003edriver_data = NULL.\n\nHowever, a failed resume callback does not automatically unbind the\ndriver. When the device is eventually unbound, mana_remove() is invoked\na second time. Without a NULL check, it dereferences gc-\u003edev with\ngc == NULL, causing a kernel panic.\n\nAdd an early return if gdma_context or driver_data is NULL so the second\ninvocation is harmless. Move the dev = gc-\u003edev assignment after the\nguard so it cannot dereference NULL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:40:55.155Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbe5c3c570645a4ceb120979d3ee203a1583d775"
        },
        {
          "url": "https://git.kernel.org/stable/c/50271d7ec95144d26808025b508f463780517d3c"
        }
      ],
      "title": "net: mana: Guard mana_remove against double invocation",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53297",
    "datePublished": "2026-06-26T19:40:55.155Z",
    "dateReserved": "2026-06-09T07:44:35.396Z",
    "dateUpdated": "2026-06-26T19:40:55.155Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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