CVE-2026-46187 (GCVE-0-2026-46187)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-06-14 18:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: fix kthread lifetime race between self-exit and external-stop RSI driver use both self-exit(kthread_complete_and_exit) and external-stop (kthread_stop) when killing a kthread. Generally, kthread_stop() is called first, and in this case, no particular issues occur. However, in rare instances where kthread_complete_and_exit() is called first and then kthread_stop() is called, a UAF occurs because the kthread object, which has already exited and been freed, is accessed again. Therefore, to prevent this with minimal modification, you must remove kthread_stop() and change the code to wait until the self-exit operation is completed.
Impacted products
Vendor Product Version
Linux Linux Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: 4c62764d0fc21a34ffc44eec1210038c3a2e4473
Version: d8f70ad66032363e3edceee81a7be2aaccb2d7f5
Version: ec759c0015fb7d4f5c7cb5711d2c8905724c7983
Version: c8ed05b1d8520f40395916438da9b38ce937a896
Version: ad78e2e057ab8d914a2b5e3e6acf29c3c8a428a3
Version: de1fd69b6541ff61177114d63af7ea719c426cf0
Version: 3.18.139   
Version: 4.4.179   
Version: 4.9.170   
Version: 4.14.113   
Version: 4.19.36   
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/rsi/rsi_common.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4ac3095da22fc50e51ec10c3b8323c21ab3e441a",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "9dfe8a4458a063c6433526bc59112a169eee1aa3",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "4f697813162d5f9151726a6d2bee82bffe4b0256",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "95fcb436586dc3c2983537d557ac05bbc6a027f3",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "16d9f674c619838bdeae42abc0929c9c5477ea1f",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "4f9a4ae8d2c198f01611ea376034c326ef43ab56",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "lessThan": "db57a1aa54ff68669781976e4edb045e09e2b65b",
              "status": "affected",
              "version": "4c62764d0fc21a34ffc44eec1210038c3a2e4473",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d8f70ad66032363e3edceee81a7be2aaccb2d7f5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec759c0015fb7d4f5c7cb5711d2c8905724c7983",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c8ed05b1d8520f40395916438da9b38ce937a896",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ad78e2e057ab8d914a2b5e3e6acf29c3c8a428a3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "de1fd69b6541ff61177114d63af7ea719c426cf0",
              "versionType": "git"
            },
            {
              "lessThan": "3.19",
              "status": "affected",
              "version": "3.18.139",
              "versionType": "semver"
            },
            {
              "lessThan": "4.5",
              "status": "affected",
              "version": "4.4.179",
              "versionType": "semver"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.170",
              "versionType": "semver"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.113",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.36",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/rsi/rsi_common.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "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": "5.10.258",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.18.139",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.4.179",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.9.170",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.113",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.36",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: fix kthread lifetime race between self-exit and external-stop\n\nRSI driver use both self-exit(kthread_complete_and_exit) and external-stop\n(kthread_stop) when killing a kthread. Generally, kthread_stop() is called\nfirst, and in this case, no particular issues occur.\n\nHowever, in rare instances where kthread_complete_and_exit() is called\nfirst and then kthread_stop() is called, a UAF occurs because the kthread\nobject, which has already exited and been freed, is accessed again.\n\nTherefore, to prevent this with minimal modification, you must remove\nkthread_stop() and change the code to wait until the self-exit operation\nis completed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T18:01:14.431Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4ac3095da22fc50e51ec10c3b8323c21ab3e441a"
        },
        {
          "url": "https://git.kernel.org/stable/c/9dfe8a4458a063c6433526bc59112a169eee1aa3"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f697813162d5f9151726a6d2bee82bffe4b0256"
        },
        {
          "url": "https://git.kernel.org/stable/c/95fcb436586dc3c2983537d557ac05bbc6a027f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/16d9f674c619838bdeae42abc0929c9c5477ea1f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f9a4ae8d2c198f01611ea376034c326ef43ab56"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f4c9b13c485abd0a2d2c97f9db339d1dd8e147f"
        },
        {
          "url": "https://git.kernel.org/stable/c/db57a1aa54ff68669781976e4edb045e09e2b65b"
        }
      ],
      "title": "wifi: rsi: fix kthread lifetime race between self-exit and external-stop",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46187",
    "datePublished": "2026-05-28T09:36:41.427Z",
    "dateReserved": "2026-05-13T15:03:33.104Z",
    "dateUpdated": "2026-06-14T18:01:14.431Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…