CVE-2026-53305 (GCVE-0-2026-53305)

Vulnerability from cvelistv5 – Published: 2026-06-26 19:41 – Updated: 2026-06-26 19:41
VLAI
Title
usb: typec: ps883x: Fix Oops at unbind
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 257a087c8b5206e046048de6053fc8b3fa1af814 , < 37a3d1b6827783f26d2f8e6c7683e253ba79ae93 (git)
Affected: 257a087c8b5206e046048de6053fc8b3fa1af814 , < c404d0ac0cb085cb7077ba32c334cc4042feb81a (git)
Affected: 257a087c8b5206e046048de6053fc8b3fa1af814 , < 381133848a033c2086cf9cafb226f425bd0414ff (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": [
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              "status": "affected",
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              "versionType": "git"
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              "version": "257a087c8b5206e046048de6053fc8b3fa1af814",
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              "versionType": "git"
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          "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"
            },
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              "status": "unaffected",
              "version": "0",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:41:00.712Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/37a3d1b6827783f26d2f8e6c7683e253ba79ae93"
        },
        {
          "url": "https://git.kernel.org/stable/c/c404d0ac0cb085cb7077ba32c334cc4042feb81a"
        },
        {
          "url": "https://git.kernel.org/stable/c/381133848a033c2086cf9cafb226f425bd0414ff"
        }
      ],
      "title": "usb: typec: ps883x: Fix Oops at unbind",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53305",
    "datePublished": "2026-06-26T19:41:00.712Z",
    "dateReserved": "2026-06-09T07:44:35.397Z",
    "dateUpdated": "2026-06-26T19:41:00.712Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53305",
      "date": "2026-07-07",
      "epss": "0.00121",
      "percentile": "0.02257"
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  }
}


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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

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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.