{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45877", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.081Z", "datePublished": "2026-05-27T12:16:46.910Z", "dateUpdated": "2026-05-27T12:16:46.910Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:16:46.910Z"}, "descriptions": [{"lang": "en", "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->device pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl->device->reference_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->device 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]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/intel-ish-hid/ishtp/bus.c"], "versions": [{"version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626", "lessThan": "0b605e8ce60698c27a26f512968a597fd620d2e8", "status": "affected", "versionType": "git"}, {"version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626", "lessThan": "feb4bcfd405282de60aba321f13a1272b30c5af4", "status": "affected", "versionType": "git"}, {"version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626", "lessThan": "272dac57caa981718e7188c80c703e7bb1998054", "status": "affected", "versionType": "git"}, {"version": "3703f53b99e4a7c373ce3568dd3f91f175ebb626", "lessThan": "56f7db581ee73af53cd512e00a6261a025bf1d58", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/intel-ish-hid/ishtp/bus.c"], "versions": [{"version": "4.9", "status": "affected"}, {"version": "0", "lessThan": "4.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8"}, {"url": "https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4"}, {"url": "https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054"}, {"url": "https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58"}], "title": "HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "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->device pointer may be NULL if the\nreset occurs while clients are still being enumerated. Accessing\ncl->device->reference_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->device 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": "CVE-2026-45877", "lastModified": "2026-05-27T14:48:31.480", "metrics": {}, "published": "2026-05-27T14:17:01.397", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients", "id": "2482144", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482144"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's Intel Integrated Sensor Hub (ISH) HID driver. During a warm reset, a NULL-pointer dereference can occur if clients are still being enumerated. This can lead to a kernel panic, causing the system to become unstable or unavailable, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-45877", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45877\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45877\nhttps://lore.kernel.org/linux-cve-announce/2026052714-CVE-2026-45877-f416@gregkh/T"], "threat_severity": "Low"}