CVE-2026-89464 (GCVE-0-2026-89464)
Vulnerability from cvelistv5
Published
2026-09-11 19:43
Modified
2026-10-19 08:47
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: power: supply: twl4030_charger: cancel workers via devm bci is devm-allocated. Two workers (bci->work and bci->current_worker) dereference it. twl4030_bci_remove() disables charging and masks interrupts. It cancels neither worker. A worker pending at remove() can run after devm frees bci. The USB transceiver comes from devm_usb_get_phy_by_node(). devm unregisters its notifier only after remove() returns. A cancel_work_sync() in remove() can then race a notifier reschedule. devm_work_autocancel() and devm_delayed_work_autocancel() avoid that. They cancel the workers during devm release, before bci is freed. The current_worker is registered first, since devm will cancel in reverse order and bci->work can reschedule current_worker. [Move comment about order into the commit message]
References
Impacted products
Vendor Product Version
Linux Linux Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
Version: d6ccc442b12102414c1343f0adacaa8a1aaa516c
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/twl4030_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9644c96ef8646c65d46caa5139a6631e29b79d6c",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "e9fffe10bd791082263c1678f2f6cdd6d7b487e0",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "c46c205bab0dfce4dd54aeb49da3f183e1fdfc63",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "72a2d6cd049f892853e4e2d8d8fc5e7d0244a458",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "a4460e89d4088cfec2da5be33e265ef1a8e780e9",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "b955da82db4170bdf1c784dc457287aa0c977378",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            },
            {
              "lessThan": "6eba34732524067da2aad5ddfdfbc641ded10e9e",
              "status": "affected",
              "version": "d6ccc442b12102414c1343f0adacaa8a1aaa516c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/twl4030_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: twl4030_charger: cancel workers via devm\n\nbci is devm-allocated. Two workers (bci-\u003ework and bci-\u003ecurrent_worker)\ndereference it. twl4030_bci_remove() disables charging and masks\ninterrupts. It cancels neither worker. A worker pending at remove() can\nrun after devm frees bci.\n\nThe USB transceiver comes from devm_usb_get_phy_by_node(). devm\nunregisters its notifier only after remove() returns. A cancel_work_sync()\nin remove() can then race a notifier reschedule. devm_work_autocancel()\nand devm_delayed_work_autocancel() avoid that. They cancel the workers\nduring devm release, before bci is freed.\n\nThe current_worker is registered first, since devm will cancel in\nreverse order and bci-\u003ework can reschedule current_worker.\n\n[Move comment about order into the commit message]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:47:13.492Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63"
        },
        {
          "url": "https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378"
        },
        {
          "url": "https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e"
        }
      ],
      "title": "power: supply: twl4030_charger: cancel workers via devm",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89464",
    "datePublished": "2026-09-11T19:43:25.282Z",
    "dateReserved": "2026-09-11T19:38:34.708Z",
    "dateUpdated": "2026-10-19T08:47:13.492Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.