{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "554c0a3abf216c991c5ebddcdb2c08689ecd290b"
            },
            {
              "fixed": "15081ff835b29e456da29303b32efc436df04695"
            },
            {
              "fixed": "310aaa8058d19cc431aedac0f5bb814e84479393"
            },
            {
              "fixed": "1410bce22351ba15d8e58287cbf09d55d7f21fc9"
            },
            {
              "fixed": "0b7f64c7bb9664777168768c6b44affb07dcbf24"
            },
            {
              "fixed": "136f9a3ab87ded8aaf081425cfb2059659dd9023"
            },
            {
              "fixed": "b041e3f35e0d262d42a711094ab594634d72744a"
            },
            {
              "fixed": "a54fd1a44862d263df9f8bc17fca3620be31addb"
            },
            {
              "fixed": "ff917923f4fb9c83717ba135ee47d7e4c1567bb7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90017.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in rtw_action_frame_parse()\n\nrtw_action_frame_parse() takes a frame_len parameter but never\nactually checks it before indexing into the frame body:\n\n\tconst u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr);\n\t...\n\tc = frame_body[0];\n\t...\n\ta = frame_body[1];\n\nframe_body already points 24 bytes (sizeof(struct\nieee80211_hdr_3addr)) into frame, so reading frame_body[0] and\nframe_body[1] requires frame_len \u003e= 26. A management action frame\nshorter than that (e.g. exactly 24 bytes, the minimum a malicious\npeer can send) causes a 1-2 byte out-of-bounds read.\n\nThis is reachable from rtw_cfg80211_monitor_if_xmit_entry() and\ncfg80211_rtw_mgmt_tx() in ioctl_cfg80211.c, both of which pass\nattacker/user-influenced frame buffers and lengths straight through.\n\nAdd the missing length check before frame_body is dereferenced.",
  "id": "CVE-2026-90017",
  "modified": "2026-09-18T03:30:55.146957320Z",
  "published": "2026-09-16T10:33:22.827Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b7f64c7bb9664777168768c6b44affb07dcbf24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/136f9a3ab87ded8aaf081425cfb2059659dd9023"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1410bce22351ba15d8e58287cbf09d55d7f21fc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15081ff835b29e456da29303b32efc436df04695"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/310aaa8058d19cc431aedac0f5bb814e84479393"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a54fd1a44862d263df9f8bc17fca3620be31addb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b041e3f35e0d262d42a711094ab594634d72744a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff917923f4fb9c83717ba135ee47d7e4c1567bb7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90017.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90017"
    },
    {
      "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:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "staging: rtl8723bs: fix OOB read in rtw_action_frame_parse()"
}