CVE-2026-43275 (GCVE-0-2026-43275)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-06 11:28
VLAI?
Title
scsi: ufs: core: Flush exception handling work when RPM level is zero
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Flush exception handling work when RPM level is zero Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0. When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash. Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < d5c3a1a13f97355c397f9439d79cb04b182958a3 (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < 5d186731bc335cc049d4e57ab9f563cfab95593e (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < aa8d68d97c7f0ef966e51afc17fdbdc372700edf (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < aac2fee7513dd25042a616f86a1469b4858d2c5c (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < 78d8e2d6352e8317686ee3a44811ac14c415a57d (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < ab71c146c135f9af1614ef0fc29a0a3b84f1a373 (git)
Affected: 57d104c153d3d6d7bea60089e80f37501851ed2c , < f8ef441811ec413717f188f63d99182f30f0f08e (git)
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    Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/ufs/core/ufshcd.c"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Flush exception handling work when RPM level is zero\n\nEnsure that the exception event handling work is explicitly flushed during\nsuspend when the runtime power management level is set to UFS_PM_LVL_0.\n\nWhen the RPM level is zero, the device power mode and link state both\nremain active. Previously, the UFS core driver bypassed flushing exception\nevent handling jobs in this configuration. This created a race condition\nwhere the driver could attempt to access the host controller to handle an\nexception after the system had already entered a deep power-down state,\nresulting in a system crash.\n\nExplicitly flush this work and disable auto BKOPs before the suspend\ncallback proceeds. This guarantees that pending exception tasks complete\nand prevents illegal hardware access during the power-down sequence."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T11:28:58.174Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/d5c3a1a13f97355c397f9439d79cb04b182958a3"
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        },
        {
          "url": "https://git.kernel.org/stable/c/f8ef441811ec413717f188f63d99182f30f0f08e"
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      ],
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    "datePublished": "2026-05-06T11:28:58.174Z",
    "dateReserved": "2026-05-01T14:12:55.998Z",
    "dateUpdated": "2026-05-06T11:28:58.174Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43275\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-06T12:16:48.800\",\"lastModified\":\"2026-05-06T13:07:51.607\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: ufs: core: Flush exception handling work when RPM level is zero\\n\\nEnsure that the exception event handling work is explicitly flushed during\\nsuspend when the runtime power management level is set to UFS_PM_LVL_0.\\n\\nWhen the RPM level is zero, the device power mode and link state both\\nremain active. Previously, the UFS core driver bypassed flushing exception\\nevent handling jobs in this configuration. This created a race condition\\nwhere the driver could attempt to access the host controller to handle an\\nexception after the system had already entered a deep power-down state,\\nresulting in a system crash.\\n\\nExplicitly flush this work and disable auto BKOPs before the suspend\\ncallback proceeds. This guarantees that pending exception tasks complete\\nand prevents illegal hardware access during the power-down sequence.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5d186731bc335cc049d4e57ab9f563cfab95593e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/78d8e2d6352e8317686ee3a44811ac14c415a57d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aa8d68d97c7f0ef966e51afc17fdbdc372700edf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aac2fee7513dd25042a616f86a1469b4858d2c5c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ab71c146c135f9af1614ef0fc29a0a3b84f1a373\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d5c3a1a13f97355c397f9439d79cb04b182958a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f8ef441811ec413717f188f63d99182f30f0f08e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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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.