{"api_version":"1","generated_at":"2026-08-06T14:12:49+00:00","cve":"CVE-2026-64603","urls":{"html":"https://cve.report/CVE-2026-64603","api":"https://cve.report/api/cve/CVE-2026-64603.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64603","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64603"},"summary":{"title":"platform/x86: intel-hid: Protect ACPI notify handler against recursion","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: intel-hid: Protect ACPI notify handler against recursion\n\nSince commit e2ffcda16290 (\"ACPI: OSL: Allow Notify () handlers to run on\nall CPUs\") ACPI notify handlers like the intel-hid notify_handler() may\nrun on multiple CPU cores racing with themselves.\n\nOn convertibles and detachables (matched by DMI chassis-type 31 and 32 in\ndmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered\nlazily from notify_handler() on the first tablet-mode event, via\nintel_hid_switches_setup(). When two such events race on different CPUs\nboth can pass the !priv->switches check and register the priv->switches\ninput device twice, resulting in a duplicate sysfs entry and a subsequent\nNULL pointer dereference.\n\nThis is the same class of bug fixed by commit e075c3b13a0a (\"platform/x86:\nintel-vbtn: Protect ACPI notify handler against recursion\") for the\nsibling intel-vbtn driver.\n\nProtect intel-hid notify_handler() from racing with itself with a mutex\nto fix this.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-06 08:16:36","updated_at":"2026-08-06 08:16:36"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c085d82613d5618814b84406c8b2d64f1bc305e7","name":"https://git.kernel.org/stable/c/c085d82613d5618814b84406c8b2d64f1bc305e7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eace3b3e729d5ba11794d69acfafb58a7950217c","name":"https://git.kernel.org/stable/c/eace3b3e729d5ba11794d69acfafb58a7950217c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a6402808e552e44e9c26a9fe8395ac11703d5800","name":"https://git.kernel.org/stable/c/a6402808e552e44e9c26a9fe8395ac11703d5800","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0","name":"https://git.kernel.org/stable/c/86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64603","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64603","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2ffcda1629012a2c1a3706432bc45fdc899a584 a6402808e552e44e9c26a9fe8395ac11703d5800 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2ffcda1629012a2c1a3706432bc45fdc899a584 86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2ffcda1629012a2c1a3706432bc45fdc899a584 eace3b3e729d5ba11794d69acfafb58a7950217c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2ffcda1629012a2c1a3706432bc45fdc899a584 c085d82613d5618814b84406c8b2d64f1bc305e7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/platform/x86/intel/hid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a6402808e552e44e9c26a9fe8395ac11703d5800","status":"affected","version":"e2ffcda1629012a2c1a3706432bc45fdc899a584","versionType":"git"},{"lessThan":"86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0","status":"affected","version":"e2ffcda1629012a2c1a3706432bc45fdc899a584","versionType":"git"},{"lessThan":"eace3b3e729d5ba11794d69acfafb58a7950217c","status":"affected","version":"e2ffcda1629012a2c1a3706432bc45fdc899a584","versionType":"git"},{"lessThan":"c085d82613d5618814b84406c8b2d64f1bc305e7","status":"affected","version":"e2ffcda1629012a2c1a3706432bc45fdc899a584","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/platform/x86/intel/hid.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: intel-hid: Protect ACPI notify handler against recursion\n\nSince commit e2ffcda16290 (\"ACPI: OSL: Allow Notify () handlers to run on\nall CPUs\") ACPI notify handlers like the intel-hid notify_handler() may\nrun on multiple CPU cores racing with themselves.\n\nOn convertibles and detachables (matched by DMI chassis-type 31 and 32 in\ndmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered\nlazily from notify_handler() on the first tablet-mode event, via\nintel_hid_switches_setup(). When two such events race on different CPUs\nboth can pass the !priv->switches check and register the priv->switches\ninput device twice, resulting in a duplicate sysfs entry and a subsequent\nNULL pointer dereference.\n\nThis is the same class of bug fixed by commit e075c3b13a0a (\"platform/x86:\nintel-vbtn: Protect ACPI notify handler against recursion\") for the\nsibling intel-vbtn driver.\n\nProtect intel-hid notify_handler() from racing with itself with a mutex\nto fix this."}],"providerMetadata":{"dateUpdated":"2026-08-06T07:13:55.114Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a6402808e552e44e9c26a9fe8395ac11703d5800"},{"url":"https://git.kernel.org/stable/c/86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0"},{"url":"https://git.kernel.org/stable/c/eace3b3e729d5ba11794d69acfafb58a7950217c"},{"url":"https://git.kernel.org/stable/c/c085d82613d5618814b84406c8b2d64f1bc305e7"}],"title":"platform/x86: intel-hid: Protect ACPI notify handler against recursion","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64603","datePublished":"2026-08-06T07:13:55.114Z","dateReserved":"2026-07-19T15:36:31.799Z","dateUpdated":"2026-08-06T07:13:55.114Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 08:16:36","lastModifiedDate":"2026-08-06 08:16:36","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64603","Ordinal":"1","Title":"platform/x86: intel-hid: Protect ACPI notify handler against rec","CVE":"CVE-2026-64603","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64603","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: intel-hid: Protect ACPI notify handler against recursion\n\nSince commit e2ffcda16290 (\"ACPI: OSL: Allow Notify () handlers to run on\nall CPUs\") ACPI notify handlers like the intel-hid notify_handler() may\nrun on multiple CPU cores racing with themselves.\n\nOn convertibles and detachables (matched by DMI chassis-type 31 and 32 in\ndmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered\nlazily from notify_handler() on the first tablet-mode event, via\nintel_hid_switches_setup(). When two such events race on different CPUs\nboth can pass the !priv->switches check and register the priv->switches\ninput device twice, resulting in a duplicate sysfs entry and a subsequent\nNULL pointer dereference.\n\nThis is the same class of bug fixed by commit e075c3b13a0a (\"platform/x86:\nintel-vbtn: Protect ACPI notify handler against recursion\") for the\nsibling intel-vbtn driver.\n\nProtect intel-hid notify_handler() from racing with itself with a mutex\nto fix this.","Type":"Description","Title":"platform/x86: intel-hid: Protect ACPI notify handler against rec"}]}}}