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fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt() fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table(), which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference. Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.34, 6.15.3, 6.6.94
CVEs
CVE-2025-38274
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 16:31 UTC · Revision 1

Source evidence

fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()

core-osv · Original source

Published 10 Jul 2025, 07:41 UTC

In the Linux kernel, the following vulnerability has been resolved: fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt() fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table(), which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference. Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().

osv:CVE-2025-38274

Kernel

Fixed versions: 6.6.94, 6.12.34, 6.15.3

Complete source record
{
  "id": "5b1336b1fe90cabb302f32717e9866948b5be563f1f681e5e430fb073792ce61",
  "url": "https://osv.dev/vulnerability/CVE-2025-38274",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: fpga: fix potential null pointer deref in fpga_mgr_test_img_load_sgt() fpga_mgr_test_img_load_sgt() allocates memory for sgt using kunit_kzalloc() however it does not check if the allocation failed. It then passes sgt to sg_alloc_table(), which passes it to __sg_alloc_table(). This function calls memset() on sgt in an attempt to zero it out. If the allocation fails then sgt will be NULL and the memset will trigger a NULL pointer dereference. Fix this by checking the allocation with KUNIT_ASSERT_NOT_ERR_OR_NULL().",
    "evidence": "osv:CVE-2025-38274",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.94",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.34",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38274",
      "aliases": [
        "CVE-2025-38274"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ccbc1c302115d8125d6a96296ba52702c6de0ade"
                },
                {
                  "fixed": "e69e2cfd8b38d9463a250e153ef4963a604d61e9"
                },
                {
                  "fixed": "8b2230ac7ff0aeb2441132df638a82ab124f8624"
                },
                {
                  "fixed": "eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d"
                },
                {
                  "fixed": "6ebf1982038af12f3588417e4fd0417d2551da28"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38274.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.94"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.34"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38274.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.788700932Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6ebf1982038af12f3588417e4fd0417d2551da28",
        "https://git.kernel.org/stable/c/8b2230ac7ff0aeb2441132df638a82ab124f8624",
        "https://git.kernel.org/stable/c/e69e2cfd8b38d9463a250e153ef4963a604d61e9",
        "https://git.kernel.org/stable/c/eb4c74eaa6e2d15f3bbd32941c9d2a25b29a718d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38274.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38274",
        "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/2025/38xxx/CVE-2025-38274.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38274",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497417,
  "published_at": "2025-07-10T07:41:55.041+00:00"
}