{"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"}}}}