CVE-2026-90026 (GCVE-0-2026-90026)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:33 – Updated: 2026-10-19 08:56
VLAI
Title
usb: typec: qcom-pmic: cancel reset_work on stop
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic: cancel reset_work on stop pdphy_stop() disables IRQs but leaves reset_work pending. If the IRQ handler schedules it just before disable_irq(), the work runs after remove() frees the struct via devm. Call cancel_work_sync() after disabling IRQs to close the window. This issue was found by an in-house static analysis tool.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a4422ff221429c600c3dc5d0394fb3738b89d040 , < 0b69b166852dbf1f9532b22bd49f502e5970eb95 (git)
Affected: a4422ff221429c600c3dc5d0394fb3738b89d040 , < b9a7eed472edbfa8dec0fdeafd5e796550a8a8b7 (git)
Affected: a4422ff221429c600c3dc5d0394fb3738b89d040 , < d4e00a1eb39174e25ef759b8fb1111bba8e87b1e (git)
Affected: a4422ff221429c600c3dc5d0394fb3738b89d040 , < 52d556f08547733948cc40b8b11e6b68dccee7b2 (git)
Affected: a4422ff221429c600c3dc5d0394fb3738b89d040 , < 7b0df6efd143f8085bdb68778a013a46f1349913 (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c"
          ],
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.5"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "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": "6.6.157",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: qcom-pmic: cancel reset_work on stop\n\npdphy_stop() disables IRQs but leaves reset_work pending.  If the IRQ\nhandler schedules it just before disable_irq(), the work runs after\nremove() frees the struct via devm.\n\nCall cancel_work_sync() after disabling IRQs to close the window.\n\nThis issue was found by an in-house static analysis tool."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The use-after-free is reached from local Qualcomm PMIC Type-C platform-driver teardown (sysfs unbind, rmmod, or probe unwind calling pdphy_stop), not from parsing USB host packets. That matches other USB/UDC teardown UAFs scored Local and is higher severity than Physical.\nAC:L - A USB PD Hard Reset SIG_RX IRQ schedules reset_work, then pdphy_stop() only disable_irq() without cancel_work_sync, so the attacker can queue the work and immediately unbind/rebind until the worker runs on the freed pmic_typec_pdphy; such attacker-driven UAF races score AC:L.\nPR:L - Per CNA driver-removal UAF precedent, an unprivileged local user on Qualcomm phones, laptops, and automotive systems using this PMIC Type-C controller can spray the freed pmic_typec_pdphy while privileged or automated teardown proceeds; init-namespace root is not required for the UAF itself.\nUI:N - The attacker queues reset_work from in-flight SIG_RX and initiates driver removal themselves; no separate victim action such as plugging a USB cable, mounting a filesystem, or opening a device node is required.\nS:U - The use-after-free corrupts the host kernel\u0027s pmic_typec_pdphy and tcpm_port heap objects within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - qcom_pmic_typec_pdphy_sig_reset_work() recovers the freed pmic_typec_pdphy via container_of and reads its lock, regmap, and tcpm_port; reclaiming that slab yields a classic UAF read/disclosure primitive.\nI:H - The dangling worker takes the freed lock, writes PD PHY registers through regmap, and calls tcpm_pd_hard_reset() on a possibly unregistered port, enabling heap corruption and control-flow hijack.\nA:H - Dereferencing the freed pmic_typec_pdphy from workqueue context, or queueing TCPM work on a destroyed port worker, causes a kernel oops or panic even without a full exploit, so availability impact is High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:56:42.448Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/0b69b166852dbf1f9532b22bd49f502e5970eb95"
        },
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          "url": "https://git.kernel.org/stable/c/b9a7eed472edbfa8dec0fdeafd5e796550a8a8b7"
        },
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          "url": "https://git.kernel.org/stable/c/d4e00a1eb39174e25ef759b8fb1111bba8e87b1e"
        },
        {
          "url": "https://git.kernel.org/stable/c/52d556f08547733948cc40b8b11e6b68dccee7b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/7b0df6efd143f8085bdb68778a013a46f1349913"
        }
      ],
      "title": "usb: typec: qcom-pmic: cancel reset_work on stop",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90026",
    "datePublished": "2026-09-16T10:33:29.008Z",
    "dateReserved": "2026-09-11T19:38:34.782Z",
    "dateUpdated": "2026-10-19T08:56:42.448Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-11-09",
      "epss": "0.00175",
      "percentile": "0.07041"
    },
    "nvd": {
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                "programFiles": [
                  "drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c"
                ],
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                "vendor": "Linux",
                "versions": [
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        "cveTags": [],
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: qcom-pmic: cancel reset_work on stop\n\npdphy_stop() disables IRQs but leaves reset_work pending.  If the IRQ\nhandler schedules it just before disable_irq(), the work runs after\nremove() frees the struct via devm.\n\nCall cancel_work_sync() after disabling IRQs to close the window.\n\nThis issue was found by an in-house static analysis tool."
          }
        ],
        "id": "CVE-2026-90026",
        "lastModified": "2026-10-19T09:18:50.713",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
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              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
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        "published": "2026-09-16T11:17:15.613",
        "references": [
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          }
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-07T11:27:13+00:00",
      "cve": "CVE-2026-90026",
      "id": "CVE-2026-90026",
      "initial_release_date": "2026-09-16T00:00:00+00:00",
      "product_status:known_not_affected": "203",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: typec: qcom-pmic: cancel reset_work on stop",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90026.json",
      "version": "3"
    }
  }
}



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