{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d6e882b89fdf80be0ab4f914ec10f75215e49495"
            },
            {
              "fixed": "4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb"
            },
            {
              "fixed": "db986098f30881fafcc752800aa3b13fd289c922"
            },
            {
              "fixed": "de691dc3227b061c4d0beba9f0128fe1ff33dd68"
            },
            {
              "fixed": "6fb7b769d6ed6d1d2e02af4a80e57a2477f35086"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74545.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtase: fix double free of multi-frag skb on DMA map failure\n\nIn rtase_start_xmit(), when the head buffer DMA mapping fails after\nrtase_xmit_frags() has mapped all fragments, the error path clears\nthe fragment descriptors with rtase_tx_clear_range(), which frees\nthe skb through the last-frag slot and accounts tx_dropped. Control\nthen falls through to the common error label, which frees the same\nskb a second time and counts it again.\n\nReturn right after clearing the fragments when the skb owns frags;\nthe no-frag case still drops through and frees the head skb once.",
  "id": "CVE-2026-74545",
  "modified": "2026-08-18T03:30:51.322422190Z",
  "published": "2026-08-15T12:27:54.536Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fb7b769d6ed6d1d2e02af4a80e57a2477f35086"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db986098f30881fafcc752800aa3b13fd289c922"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de691dc3227b061c4d0beba9f0128fe1ff33dd68"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74545.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74545"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "rtase: fix double free of multi-frag skb on DMA map failure"
}