CVE-2026-64602 (GCVE-0-2026-64602)

Vulnerability from cvelistv5 – Published: 2026-08-06 07:13 – Updated: 2026-08-06 07:13
VLAI
Title
iio: adc: spear: Initialize completion before requesting IRQ
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung Chung: "spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its interrupt handler with devm_request_irq() before it initializes st->completion with init_completion(). If an interrupt arrives after devm_request_irq() and before init_completion(), the handler calls complete() on an uninitialized completion, causing a kernel panic. The probe path, in spear_adc_probe(): iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */ ... retval = devm_request_irq(&pdev->dev, irq, spear_adc_isr, 0, LPC32XXAD_NAME, st); /* register handler */ ... init_completion(&st->completion); /* initialize completion */ spear_adc_isr() calls complete(): complete(&st->completion); If the device raises an interrupt before init_completion() runs, complete() acquires the uninitialized wait.lock and walks the zeroed task_list in swake_up_locked(). The zeroed task_list makes list_empty() return false, so swake_up_locked() dereferences a NULL list entry, triggering a KASAN wild-memory-access." Fix the chance of a spurious IRQ causing an uninitialized pointer dereference by moving init_completion() above devm_request_irq().
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < aea8ae6c4d3ed58d9223360f758df6bd8b90c608 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < 67a49ab41320b3f721ce4be7447754ff040acbd5 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < a50757398794aaa25f908b96c6733e045466cba4 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < f3f90bc7b38ba3ff14f131cea0f8eb77624787a8 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < 37077d8271b1f24894fbc21bca1c4cd337525d31 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < bbfebae473ac2c8a194523b29ccb9b45f02f134c (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4 (git)
Affected: b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed , < 3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0 (git)
Create a notification for this product.
Linux Linux Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.96 , ≤ 6.12.* (semver)
Unaffected: 6.18.39 , ≤ 6.18.* (semver)
Unaffected: 7.1.4 , ≤ 7.1.* (semver)
Unaffected: 7.2-rc3 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/adc/spear_adc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aea8ae6c4d3ed58d9223360f758df6bd8b90c608",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "67a49ab41320b3f721ce4be7447754ff040acbd5",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "a50757398794aaa25f908b96c6733e045466cba4",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "f3f90bc7b38ba3ff14f131cea0f8eb77624787a8",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "37077d8271b1f24894fbc21bca1c4cd337525d31",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "bbfebae473ac2c8a194523b29ccb9b45f02f134c",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            },
            {
              "lessThan": "3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0",
              "status": "affected",
              "version": "b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/adc/spear_adc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.16"
            },
            {
              "lessThan": "3.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.96",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.39",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2-rc3",
                  "versionStartIncluding": "3.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: spear: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its\ninterrupt handler with devm_request_irq() before it initializes\nst-\u003ecompletion with init_completion(). If an interrupt arrives after\ndevm_request_irq() and before init_completion(), the handler calls\ncomplete() on an uninitialized completion, causing a kernel panic.\n\nThe probe path, in spear_adc_probe():\n\n    iodev = devm_iio_device_alloc(\u0026pdev-\u003edev, sizeof(*st)); /* st kzalloc-zeroed */\n    ...\n    retval = devm_request_irq(\u0026pdev-\u003edev, irq, spear_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(\u0026st-\u003ecompletion);                       /* initialize completion */\n\nspear_adc_isr() calls complete():\n\n    complete(\u0026st-\u003ecompletion);\n\nIf the device raises an interrupt before init_completion() runs,\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\nreturn false, so swake_up_locked() dereferences a NULL list entry,\ntriggering a KASAN wild-memory-access.\"\n\nFix the chance of a spurious IRQ causing an uninitialized pointer\ndereference by moving init_completion() above devm_request_irq()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T07:13:54.519Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608"
        },
        {
          "url": "https://git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5"
        },
        {
          "url": "https://git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0"
        }
      ],
      "title": "iio: adc: spear: Initialize completion before requesting IRQ",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64602",
    "datePublished": "2026-08-06T07:13:54.519Z",
    "dateReserved": "2026-07-19T15:36:31.799Z",
    "dateUpdated": "2026-08-06T07:13:54.519Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64602",
      "date": "2026-08-06",
      "epss": "0.00164",
      "percentile": "0.06049"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-64602\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-06T08:16:35.920\",\"lastModified\":\"2026-08-06T08:16:35.920\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\niio: adc: spear: Initialize completion before requesting IRQ\\n\\nIn the report from Jaeyoung Chung:\\n\\n\\\"spear_adc_probe() in drivers/iio/adc/spear_adc.c registers its\\ninterrupt handler with devm_request_irq() before it initializes\\nst-\u003ecompletion with init_completion(). If an interrupt arrives after\\ndevm_request_irq() and before init_completion(), the handler calls\\ncomplete() on an uninitialized completion, causing a kernel panic.\\n\\nThe probe path, in spear_adc_probe():\\n\\n    iodev = devm_iio_device_alloc(\u0026pdev-\u003edev, sizeof(*st)); /* st kzalloc-zeroed */\\n    ...\\n    retval = devm_request_irq(\u0026pdev-\u003edev, irq, spear_adc_isr, 0,\\n                              LPC32XXAD_NAME, st);           /* register handler */\\n    ...\\n    init_completion(\u0026st-\u003ecompletion);                       /* initialize completion */\\n\\nspear_adc_isr() calls complete():\\n\\n    complete(\u0026st-\u003ecompletion);\\n\\nIf the device raises an interrupt before init_completion() runs,\\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\\nreturn false, so swake_up_locked() dereferences a NULL list entry,\\ntriggering a KASAN wild-memory-access.\\\"\\n\\nFix the chance of a spurious IRQ causing an uninitialized pointer\\ndereference by moving init_completion() above devm_request_irq().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/iio/adc/spear_adc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"aea8ae6c4d3ed58d9223360f758df6bd8b90c608\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"67a49ab41320b3f721ce4be7447754ff040acbd5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"a50757398794aaa25f908b96c6733e045466cba4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"f3f90bc7b38ba3ff14f131cea0f8eb77624787a8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"37077d8271b1f24894fbc21bca1c4cd337525d31\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"bbfebae473ac2c8a194523b29ccb9b45f02f134c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed\",\"lessThan\":\"3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/iio/adc/spear_adc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc3\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}



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.