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spi: s3c64xx: fix NULL-deref on driver unbind

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.176, 6.12.88, 6.18.30, 6.6.140, 7.0.7
CVEs
CVE-2026-46296
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 17:56 UTC · Revision 1

Source evidence

spi: s3c64xx: fix NULL-deref on driver unbind

core-osv · Original source

Published 8 Jun 2026, 15:46 UTC

In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

osv:CVE-2026-46296

Kernel

Fixed versions: 6.1.176, 6.6.140, 6.12.88, 6.18.30, 7.0.7

Complete source record
{
  "id": "67c088510c51b7304809bc3184e8155c5c8c91d2f9c37611e9dada7e6dc7c58e",
  "url": "https://osv.dev/vulnerability/CVE-2026-46296",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "spi: s3c64xx: fix NULL-deref on driver unbind",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: spi: s3c64xx: fix NULL-deref on driver unbind A change moving DMA channel allocation from probe() back to s3c64xx_spi_prepare_transfer() failed to remove the corresponding deallocation from remove(). Drop the bogus DMA channel release from remove() to avoid triggering a NULL-pointer dereference on driver unbind. This issue was flagged by Sashiko when reviewing a controller deregistration fix.",
    "evidence": "osv:CVE-2026-46296",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.176",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.140",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.88",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-46296",
      "aliases": [
        "CVE-2026-46296"
      ],
      "affected": [
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                  "fixed": "323a258f4b1916b5a3098618e036e033b2f2317f"
                },
                {
                  "fixed": "1b66f16a571a10ba8889ac471755c8af9c5b9266"
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                {
                  "fixed": "22788b1a8611380b141e09a8896702e32d164238"
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                {
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              ]
            }
          ],
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        {
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              "type": "ECOSYSTEM",
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                  "introduced": "6.0.0"
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                  "introduced": "6.2.0"
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            },
            {
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                  "introduced": "6.7.0"
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            {
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                {
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.0.7"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46296.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.286488315Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760",
        "https://git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266",
        "https://git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238",
        "https://git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7",
        "https://git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f",
        "https://git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46296.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46296",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46296.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46296",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505514,
  "published_at": "2026-06-08T15:46:23.539+00:00"
}