Vulnerability-Lookup

GHSA-69W2-J9PM-3JXM

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

In the Linux kernel, the following vulnerability has been resolved:

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients

During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count without a NULL check leads to a kernel panic.

This issue was identified during multi-unit warm reboot stress clycles. Add a defensive NULL check for cl->device to ensure stability under such intensive testing conditions.

KASAN: null-ptr-deref in range [0000000000000000-0000000000000007] Workqueue: ish_fw_update_wq fw_reset_work_fn

Call Trace: ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp] ishtp_reset_handler+0x85/0x1a0 [intel_ishtp] fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45877"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:17:01Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients\n\nDuring a warm reset flow, the cl-\u003edevice pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl-\u003edevice-\u003ereference_count without a NULL check leads to a kernel panic.\n\nThis issue was identified during multi-unit warm reboot stress clycles.\nAdd a defensive NULL check for cl-\u003edevice to ensure stability under\nsuch intensive testing conditions.\n\nKASAN: null-ptr-deref in range [0000000000000000-0000000000000007]\nWorkqueue: ish_fw_update_wq fw_reset_work_fn\n\nCall Trace:\n ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp]\n ishtp_reset_handler+0x85/0x1a0 [intel_ishtp]\n fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]",
  "id": "GHSA-69w2-j9pm-3jxm",
  "modified": "2026-05-27T15:33:14Z",
  "published": "2026-05-27T15:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45877"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45877 (GCVE-0-2026-45877)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:16 – Updated: 2026-05-27 12:16

Title

HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count without a NULL check leads to a kernel panic. This issue was identified during multi-unit warm reboot stress clycles. Add a defensive NULL check for cl->device to ensure stability under such intensive testing conditions. KASAN: null-ptr-deref in range [0000000000000000-0000000000000007] Workqueue: ish_fw_update_wq fw_reset_work_fn Call Trace: ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp] ishtp_reset_handler+0x85/0x1a0 [intel_ishtp] fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/0b605e8ce60698c27…
https://git.kernel.org/stable/c/feb4bcfd405282de6…
https://git.kernel.org/stable/c/272dac57caa981718…
https://git.kernel.org/stable/c/56f7db581ee73af53…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3703f53b99e4a7c373ce3568dd3f91f175ebb626 , < 0b605e8ce60698c27a26f512968a597fd620d2e8 (git) Affected: 3703f53b99e4a7c373ce3568dd3f91f175ebb626 , < feb4bcfd405282de60aba321f13a1272b30c5af4 (git) Affected: 3703f53b99e4a7c373ce3568dd3f91f175ebb626 , < 272dac57caa981718e7188c80c703e7bb1998054 (git) Affected: 3703f53b99e4a7c373ce3568dd3f91f175ebb626 , < 56f7db581ee73af53cd512e00a6261a025bf1d58 (git)
Linux	Linux	Affected: 4.9 Unaffected: 0 , < 4.9 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/intel-ish-hid/ishtp/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0b605e8ce60698c27a26f512968a597fd620d2e8",
              "status": "affected",
              "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
              "versionType": "git"
            },
            {
              "lessThan": "feb4bcfd405282de60aba321f13a1272b30c5af4",
              "status": "affected",
              "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
              "versionType": "git"
            },
            {
              "lessThan": "272dac57caa981718e7188c80c703e7bb1998054",
              "status": "affected",
              "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
              "versionType": "git"
            },
            {
              "lessThan": "56f7db581ee73af53cd512e00a6261a025bf1d58",
              "status": "affected",
              "version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hid/intel-ish-hid/ishtp/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "lessThan": "4.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
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                  "vulnerable": true
                }
              ],
              "negate": false,
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients\n\nDuring a warm reset flow, the cl-\u003edevice pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl-\u003edevice-\u003ereference_count without a NULL check leads to a kernel panic.\n\nThis issue was identified during multi-unit warm reboot stress clycles.\nAdd a defensive NULL check for cl-\u003edevice to ensure stability under\nsuch intensive testing conditions.\n\nKASAN: null-ptr-deref in range [0000000000000000-0000000000000007]\nWorkqueue: ish_fw_update_wq fw_reset_work_fn\n\nCall Trace:\n ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp]\n ishtp_reset_handler+0x85/0x1a0 [intel_ishtp]\n fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T12:16:46.910Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
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          "url": "https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4"
        },
        {
          "url": "https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054"
        },
        {
          "url": "https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58"
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      ],
      "title": "HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45877",
    "datePublished": "2026-05-27T12:16:46.910Z",
    "dateReserved": "2026-05-13T15:03:33.081Z",
    "dateUpdated": "2026-05-27T12:16:46.910Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-69W2-J9PM-3JXM

CVE-2026-45877 (GCVE-0-2026-45877)

Tags

Sightings

Nomenclature