FKIE_CVE-2026-53305

Vulnerability from fkie_nvd - Published: 2026-06-26 20:17 - Updated: 2026-07-06 20:24
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ps883x: Fix Oops at unbind When trying to unbind a device in order to bind to it vfio-platform as: echo bc0000.geniqup > /sys/bus/platform/devices/bc0000.geniqup/driver/unbind I get the following Oops: [ 436.478639] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 [ 436.487762] Mem abort info: [ 436.490716] ESR = 0x0000000096000004 [ 436.494595] EC = 0x25: DABT (current EL), IL = 32 bits [ 436.500071] SET = 0, FnV = 0 [ 436.503250] EA = 0, S1PTW = 0 [ 436.506505] FSC = 0x04: level 0 translation fault [ 436.511533] Data abort info: [ 436.514558] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 436.520215] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 436.525436] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 436.530918] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008861a9000 [ 436.537554] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000 [ 436.544548] Internal error: Oops: 0000000096000004 [#1] SMP [ 436.550374] Modules linked in: [ 436.553542] CPU: 2 UID: 0 PID: 671 Comm: bash Tainted: G W 7.0.0-rc3-g56fcdd0911a5-dirty #2 PREEMPT [ 436.564440] Tainted: [W]=WARN [ 436.567515] Hardware name: LENOVO 91B6CTO1WW/3796, BIOS O6NKT3BA 05/02/2025 [ 436.574675] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 436.581841] pc : ps883x_retimer_remove+0x14/0x94 [ 436.586605] lr : i2c_device_remove+0x28/0x84 [ 436.591017] sp : ffff8000847137c0 That's because the ps883x_retimer_remove() retrieves the driver data from i2c_get_clientdata() which was never set at probe. So, add i2c_set_clientdata() at the end of the probe.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/37a3d1b6827783f26d2f8e6c7683e253ba79ae93Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/381133848a033c2086cf9cafb226f425bd0414ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c404d0ac0cb085cb7077ba32c334cc4042feb81aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/mux/ps883x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "37a3d1b6827783f26d2f8e6c7683e253ba79ae93",
              "status": "affected",
              "version": "257a087c8b5206e046048de6053fc8b3fa1af814",
              "versionType": "git"
            },
            {
              "lessThan": "c404d0ac0cb085cb7077ba32c334cc4042feb81a",
              "status": "affected",
              "version": "257a087c8b5206e046048de6053fc8b3fa1af814",
              "versionType": "git"
            },
            {
              "lessThan": "381133848a033c2086cf9cafb226f425bd0414ff",
              "status": "affected",
              "version": "257a087c8b5206e046048de6053fc8b3fa1af814",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/typec/mux/ps883x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "986D4552-0ECA-40C4-9708-6D088AC7A485",
              "versionEndExcluding": "6.18.33",
              "versionStartIncluding": "6.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4",
              "versionEndExcluding": "7.0.10",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ps883x: Fix Oops at unbind\n\nWhen trying to unbind a device in order to bind to it vfio-platform as:\n\n  echo bc0000.geniqup  \u003e /sys/bus/platform/devices/bc0000.geniqup/driver/unbind\n\nI get the following Oops:\n\n[  436.478639] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020\n[  436.487762] Mem abort info:\n[  436.490716]   ESR = 0x0000000096000004\n[  436.494595]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  436.500071]   SET = 0, FnV = 0\n[  436.503250]   EA = 0, S1PTW = 0\n[  436.506505]   FSC = 0x04: level 0 translation fault\n[  436.511533] Data abort info:\n[  436.514558]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[  436.520215]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[  436.525436]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[  436.530918] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008861a9000\n[  436.537554] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000\n[  436.544548] Internal error: Oops: 0000000096000004 [#1]  SMP\n[  436.550374] Modules linked in:\n[  436.553542] CPU: 2 UID: 0 PID: 671 Comm: bash Tainted: G        W           7.0.0-rc3-g56fcdd0911a5-dirty #2 PREEMPT\n[  436.564440] Tainted: [W]=WARN\n[  436.567515] Hardware name: LENOVO 91B6CTO1WW/3796, BIOS O6NKT3BA 05/02/2025\n[  436.574675] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[  436.581841] pc : ps883x_retimer_remove+0x14/0x94\n[  436.586605] lr : i2c_device_remove+0x28/0x84\n[  436.591017] sp : ffff8000847137c0\n\nThat\u0027s because the ps883x_retimer_remove() retrieves the driver data\nfrom i2c_get_clientdata() which was never set at probe. So, add\ni2c_set_clientdata() at the end of the probe."
    }
  ],
  "id": "CVE-2026-53305",
  "lastModified": "2026-07-06T20:24:02.030",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-06-26T20:17:23.767",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/37a3d1b6827783f26d2f8e6c7683e253ba79ae93"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/381133848a033c2086cf9cafb226f425bd0414ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c404d0ac0cb085cb7077ba32c334cc4042feb81a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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