Vulnerability-Lookup

GHSA-43RV-4Q7X-R3CG

Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-07-08 06:31

Details

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53297"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T20:17:22Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-43rv-4q7x-r3cg",
  "modified": "2026-07-08T06:31:35Z",
  "published": "2026-06-26T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53297"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50271d7ec95144d26808025b508f463780517d3c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbe5c3c570645a4ceb120979d3ee203a1583d775"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53297 (GCVE-0-2026-53297)

Vulnerability from cvelistv5 – Published: 2026-06-26 19:40 – Updated: 2026-06-26 19:40

Title

net: mana: Guard mana_remove against double invocation

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.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/a1ddfd2c0b7a48e52…
https://git.kernel.org/stable/c/bbe5c3c570645a4ce…
https://git.kernel.org/stable/c/50271d7ec95144d26…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 635096a86edb067d55a1e04b4a918f5c6dac0c51 , < a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6 (git) Affected: 635096a86edb067d55a1e04b4a918f5c6dac0c51 , < bbe5c3c570645a4ceb120979d3ee203a1583d775 (git) Affected: 635096a86edb067d55a1e04b4a918f5c6dac0c51 , < 50271d7ec95144d26808025b508f463780517d3c (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6",
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              "versionType": "git"
            },
            {
              "lessThan": "bbe5c3c570645a4ceb120979d3ee203a1583d775",
              "status": "affected",
              "version": "635096a86edb067d55a1e04b4a918f5c6dac0c51",
              "versionType": "git"
            },
            {
              "lessThan": "50271d7ec95144d26808025b508f463780517d3c",
              "status": "affected",
              "version": "635096a86edb067d55a1e04b4a918f5c6dac0c51",
              "versionType": "git"
            }
          ]
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          "defaultStatus": "affected",
          "product": "Linux",
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "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."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:40:55.155Z",
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        {
          "url": "https://git.kernel.org/stable/c/50271d7ec95144d26808025b508f463780517d3c"
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      "title": "net: mana: Guard mana_remove against double invocation",
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    "datePublished": "2026-06-26T19:40:55.155Z",
    "dateReserved": "2026-06-09T07:44:35.396Z",
    "dateUpdated": "2026-06-26T19:40:55.155Z",
    "state": "PUBLISHED"
  },
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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

GHSA-43RV-4Q7X-R3CG

CVE-2026-53297 (GCVE-0-2026-53297)

Tags

Sightings

Nomenclature