{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2b3486bc2d237ec345b3942b7be5deabf8c8fed1"
            },
            {
              "fixed": "ec5a552f4b2d841c6c021752450716e1a9676661"
            },
            {
              "fixed": "daf546ab5763ce6a18280cb4db060e836c515301"
            },
            {
              "fixed": "adb3e7c26a51a10d94a241c6de7a81a2863dcacf"
            },
            {
              "fixed": "5685bbbd3cbfbeb0de96a1d275a5ca073dfebb5e"
            },
            {
              "fixed": "120977e2c096deea4e866e4273be9220b957c29e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.3.0"
            },
            {
              "fixed": "6.6.153"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.105"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74736.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: cls_bpf: reject dev-bound programs bound to a different device\n\ncls_bpf_prog_from_efd() obtained a SCHED_CLS program via\nbpf_prog_get_type_dev() but never verified that a device-bound (offloaded)\nprogram's bound netdev matches the TC netdev the classifier is being\nattached to. This let a program loaded with prog_ifindex for device A be\nattached via cls_bpf + skip_sw to device B; deleting device A then\ndestroyed the program's offload state while it was still attached to\ndevice B, triggering a netdevsim WARN (panic with panic_on_warn=1).\n\nMirror the XDP attach path (net/core/dev.c) and reject the attach with\n-EINVAL when a dev-bound program's bound device does not match the\ntarget device.",
  "id": "CVE-2026-74736",
  "modified": "2026-08-28T03:30:24.046799057Z",
  "published": "2026-08-26T14:36:49.950Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/120977e2c096deea4e866e4273be9220b957c29e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5685bbbd3cbfbeb0de96a1d275a5ca073dfebb5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adb3e7c26a51a10d94a241c6de7a81a2863dcacf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/daf546ab5763ce6a18280cb4db060e836c515301"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec5a552f4b2d841c6c021752450716e1a9676661"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74736.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74736"
    },
    {
      "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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net/sched: cls_bpf: reject dev-bound programs bound to a different device"
}