GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-53258 (GCVE-0-2026-53258)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
wifi: fix leak if split 6 GHz scanning fails
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: fix leak if split 6 GHz scanning fails rdev->int_scan_req is leaked if cfg80211_scan() fails. Note that it's supposed to be released at ___cfg80211_scan_done() but this doesn't happen as rdev->scan_req is NULL at that point, too, leading to the early return from the freeing function. unreferenced object 0xffff8881161d0800 (size 512): comm "wpa_supplicant", pid 379, jiffies 4294749765 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff ................ backtrace (crc c867fdb6): kmemleak_alloc+0x89/0x90 __kmalloc_noprof+0x2fd/0x410 cfg80211_scan+0x133/0x730 nl80211_trigger_scan+0xc69/0x1cc0 genl_family_rcv_msg_doit+0x204/0x2f0 genl_rcv_msg+0x431/0x6b0 netlink_rcv_skb+0x143/0x3f0 genl_rcv+0x27/0x40 netlink_unicast+0x4f6/0x820 netlink_sendmsg+0x797/0xce0 __sock_sendmsg+0xc4/0x160 ____sys_sendmsg+0x5e4/0x890 ___sys_sendmsg+0xf8/0x180 __sys_sendmsg+0x136/0x1e0 __x64_sys_sendmsg+0x76/0xc0 x64_sys_call+0x13f0/0x17d0 Found by Linux Verification Center (linuxtesting.org).
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c8cb5b854b40f2ce52ccd032fa19750f4181d5fc , < fb8db813eba2e56ee001c9fb5c2ce2cb78c42642 (git)
Affected: c8cb5b854b40f2ce52ccd032fa19750f4181d5fc , < a24134ddc18b4d440714365637d440b7121447b9 (git)
Affected: c8cb5b854b40f2ce52ccd032fa19750f4181d5fc , < e8694f7cc29287e843648d1075177b9a2000d957 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb8db813eba2e56ee001c9fb5c2ce2cb78c42642",
              "status": "affected",
              "version": "c8cb5b854b40f2ce52ccd032fa19750f4181d5fc",
              "versionType": "git"
            },
            {
              "lessThan": "a24134ddc18b4d440714365637d440b7121447b9",
              "status": "affected",
              "version": "c8cb5b854b40f2ce52ccd032fa19750f4181d5fc",
              "versionType": "git"
            },
            {
              "lessThan": "e8694f7cc29287e843648d1075177b9a2000d957",
              "status": "affected",
              "version": "c8cb5b854b40f2ce52ccd032fa19750f4181d5fc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/scan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: fix leak if split 6 GHz scanning fails\n\nrdev-\u003eint_scan_req is leaked if cfg80211_scan() fails.  Note that it\u0027s\nsupposed to be released at ___cfg80211_scan_done() but this doesn\u0027t happen\nas rdev-\u003escan_req is NULL at that point, too, leading to the early return\nfrom the freeing function.\n\nunreferenced object 0xffff8881161d0800 (size 512):\n  comm \"wpa_supplicant\", pid 379, jiffies 4294749765\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff  ................\n  backtrace (crc c867fdb6):\n    kmemleak_alloc+0x89/0x90\n    __kmalloc_noprof+0x2fd/0x410\n    cfg80211_scan+0x133/0x730\n    nl80211_trigger_scan+0xc69/0x1cc0\n    genl_family_rcv_msg_doit+0x204/0x2f0\n    genl_rcv_msg+0x431/0x6b0\n    netlink_rcv_skb+0x143/0x3f0\n    genl_rcv+0x27/0x40\n    netlink_unicast+0x4f6/0x820\n    netlink_sendmsg+0x797/0xce0\n    __sock_sendmsg+0xc4/0x160\n    ____sys_sendmsg+0x5e4/0x890\n    ___sys_sendmsg+0xf8/0x180\n    __sys_sendmsg+0x136/0x1e0\n    __x64_sys_sendmsg+0x76/0xc0\n    x64_sys_call+0x13f0/0x17d0\n\nFound by Linux Verification Center (linuxtesting.org)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T08:39:47.917Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fb8db813eba2e56ee001c9fb5c2ce2cb78c42642"
        },
        {
          "url": "https://git.kernel.org/stable/c/a24134ddc18b4d440714365637d440b7121447b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/e8694f7cc29287e843648d1075177b9a2000d957"
        }
      ],
      "title": "wifi: fix leak if split 6 GHz scanning fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53258",
    "datePublished": "2026-06-25T08:39:47.917Z",
    "dateReserved": "2026-06-09T07:44:35.394Z",
    "dateUpdated": "2026-06-25T08:39:47.917Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53258",
      "date": "2026-09-16",
      "epss": "0.0016",
      "percentile": "0.0558"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-13T00:10:54.000Z",
      "cve": "CVE-2026-53258",
      "id": "msrc_CVE-2026-53258",
      "initial_release_date": "2026-06-27T01:14:34.000Z",
      "product_status:known_affected": "4",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "wifi: fix leak if split 6 GHz scanning fails",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53258.json",
      "version": "4"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53258\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-25T09:16:43.800\",\"lastModified\":\"2026-07-08T16:40:07.403\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: fix leak if split 6 GHz scanning fails\\n\\nrdev-\u003eint_scan_req is leaked if cfg80211_scan() fails.  Note that it\u0027s\\nsupposed to be released at ___cfg80211_scan_done() but this doesn\u0027t happen\\nas rdev-\u003escan_req is NULL at that point, too, leading to the early return\\nfrom the freeing function.\\n\\nunreferenced object 0xffff8881161d0800 (size 512):\\n  comm \\\"wpa_supplicant\\\", pid 379, jiffies 4294749765\\n  hex dump (first 32 bytes):\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n    00 00 00 00 00 00 00 00 f0 81 13 16 81 88 ff ff  ................\\n  backtrace (crc c867fdb6):\\n    kmemleak_alloc+0x89/0x90\\n    __kmalloc_noprof+0x2fd/0x410\\n    cfg80211_scan+0x133/0x730\\n    nl80211_trigger_scan+0xc69/0x1cc0\\n    genl_family_rcv_msg_doit+0x204/0x2f0\\n    genl_rcv_msg+0x431/0x6b0\\n    netlink_rcv_skb+0x143/0x3f0\\n    genl_rcv+0x27/0x40\\n    netlink_unicast+0x4f6/0x820\\n    netlink_sendmsg+0x797/0xce0\\n    __sock_sendmsg+0xc4/0x160\\n    ____sys_sendmsg+0x5e4/0x890\\n    ___sys_sendmsg+0xf8/0x180\\n    __sys_sendmsg+0x136/0x1e0\\n    __x64_sys_sendmsg+0x76/0xc0\\n    x64_sys_call+0x13f0/0x17d0\\n\\nFound by Linux Verification Center (linuxtesting.org).\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/wireless/scan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c8cb5b854b40f2ce52ccd032fa19750f4181d5fc\",\"lessThan\":\"fb8db813eba2e56ee001c9fb5c2ce2cb78c42642\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c8cb5b854b40f2ce52ccd032fa19750f4181d5fc\",\"lessThan\":\"a24134ddc18b4d440714365637d440b7121447b9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c8cb5b854b40f2ce52ccd032fa19750f4181d5fc\",\"lessThan\":\"e8694f7cc29287e843648d1075177b9a2000d957\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/wireless/scan.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.36\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.13\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"6.18.36\",\"matchCriteriaId\":\"71576ED2-59A4-421C-AFAF-7379A7DAE364\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"7.0.13\",\"matchCriteriaId\":\"6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B1EF7059-E670-45F4-B422-54C40FA86390\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D38F0BF-A728-4133-A358-D44A2F7EE6D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"EC732D08-5F7B-46D9-B154-E60C7F4F0A97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5910A9D-F60A-409A-B486-FE66BFEBA9B9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"81DFF19E-9CF8-49C6-8C36-1E4038622933\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"B0E8FC71-3952-444C-83E9-718DBBBEC615\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/a24134ddc18b4d440714365637d440b7121447b9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e8694f7cc29287e843648d1075177b9a2000d957\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb8db813eba2e56ee001c9fb5c2ce2cb78c42642\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-08T16:55:13+00:00",
      "cve": "CVE-2026-53258",
      "id": "CVE-2026-53258",
      "initial_release_date": "2026-06-25T00:00:00+00:00",
      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: fix leak if split 6 GHz scanning fails",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53258.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T16:56:14Z",
      "cve": "CVE-2026-53258",
      "id": "CVE-2026-53258",
      "initial_release_date": "2026-06-26T02:08:22Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "528",
      "product_status:known_not_affected": "175",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53258",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53258.json",
      "version": "14"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.