{"api_version":"1","generated_at":"2026-06-02T19:12:23+00:00","cve":"CVE-2026-45877","urls":{"html":"https://cve.report/CVE-2026-45877","api":"https://cve.report/api/cve/CVE-2026-45877.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45877","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45877"},"summary":{"title":"HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients","description":"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]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:01","updated_at":"2026-05-27 14:48:31"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58","name":"https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054","name":"https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8","name":"https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4","name":"https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45877","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45877","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3703f53b99e4a7c373ce3568dd3f91f175ebb626 0b605e8ce60698c27a26f512968a597fd620d2e8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3703f53b99e4a7c373ce3568dd3f91f175ebb626 feb4bcfd405282de60aba321f13a1272b30c5af4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3703f53b99e4a7c373ce3568dd3f91f175ebb626 272dac57caa981718e7188c80c703e7bb1998054 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3703f53b99e4a7c373ce3568dd3f91f175ebb626 56f7db581ee73af53cd512e00a6261a025bf1d58 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"45877","cve":"CVE-2026-45877","epss":"0.000180000","percentile":"0.048460000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:21"},"legacy_qids":[]},"source_records":{"cve_program":{"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:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"4.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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]"}],"providerMetadata":{"dateUpdated":"2026-05-27T12:16:46.910Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","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"},"nvd":{"publishedDate":"2026-05-27 14:17:01","lastModifiedDate":"2026-05-27 14:48:31","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45877","Ordinal":"1","Title":"HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_c","CVE":"CVE-2026-45877","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45877","Ordinal":"1","NoteData":"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]","Type":"Description","Title":"HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_c"}]}}}