{"api_version":"1","generated_at":"2026-08-22T17:37:07+00:00","cve":"CVE-2026-74673","urls":{"html":"https://cve.report/CVE-2026-74673","api":"https://cve.report/api/cve/CVE-2026-74673.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74673","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74673"},"summary":{"title":"Input: evdev - fix information leak in evdev_pass_values()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: evdev - fix information leak in evdev_pass_values()\n\nIn evdev_pass_values(), the input_event structure is allocated on the\nkernel stack and populated field-by-field. However, it is never fully\ninitialized. On architectures where struct input_event contains explicit\nor implicit padding (such as the 32-bit __pad field on SPARC64), these\npadding bytes are left uninitialized.\n\nWhen this event structure is subsequently passed to the client buffer\nand later copied to userspace, the uninitialized padding bytes leak\nkernel stack memory, potentially exposing sensitive information.\n\nSimilar issues exist in __evdev_queue_syn_dropped and __pass_event.\n\nFix this by explicitly zeroing the entire event structure with memset()\nbefore populating its fields. This ensures all padding bytes are cleared\nbefore the data crosses the security boundary.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:41","updated_at":"2026-08-22 16:16:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/06a286b320236508d02ab2ccc9496352748652a8","name":"https://git.kernel.org/stable/c/06a286b320236508d02ab2ccc9496352748652a8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d2e3839419ac4047835762c4d7712bda1101b57e","name":"https://git.kernel.org/stable/c/d2e3839419ac4047835762c4d7712bda1101b57e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7e55ca1080f09d9f7112c7f20ac31f682c1f2374","name":"https://git.kernel.org/stable/c/7e55ca1080f09d9f7112c7f20ac31f682c1f2374","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/90f305f2c7a30257c683e13f4bf7c798eea992a0","name":"https://git.kernel.org/stable/c/90f305f2c7a30257c683e13f4bf7c798eea992a0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c6d5fa46c1ee25d068fc730fd377f0f54188d290","name":"https://git.kernel.org/stable/c/c6d5fa46c1ee25d068fc730fd377f0f54188d290","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b","name":"https://git.kernel.org/stable/c/7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e748811d9b80a3e101110ff4b3c612e5fca54d98","name":"https://git.kernel.org/stable/c/e748811d9b80a3e101110ff4b3c612e5fca54d98","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd3c4108a56de34380edab670065e86283cb3029","name":"https://git.kernel.org/stable/c/bd3c4108a56de34380edab670065e86283cb3029","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74673","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74673","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 d2e3839419ac4047835762c4d7712bda1101b57e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c6d5fa46c1ee25d068fc730fd377f0f54188d290 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e748811d9b80a3e101110ff4b3c612e5fca54d98 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 06a286b320236508d02ab2ccc9496352748652a8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.152 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.104 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.45 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.265 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * 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/input/evdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d2e3839419ac4047835762c4d7712bda1101b57e","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c6d5fa46c1ee25d068fc730fd377f0f54188d290","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"e748811d9b80a3e101110ff4b3c612e5fca54d98","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"06a286b320236508d02ab2ccc9496352748652a8","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"bd3c4108a56de34380edab670065e86283cb3029","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"7e55ca1080f09d9f7112c7f20ac31f682c1f2374","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"90f305f2c7a30257c683e13f4bf7c798eea992a0","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"5.10.265","status":"affected","version":"0","versionType":"semver"},{"lessThan":"5.15.216","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.1.183","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.6.152","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.12.104","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.18.45","status":"affected","version":"0","versionType":"semver"},{"lessThan":"7.1.9","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/input/evdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: evdev - fix information leak in evdev_pass_values()\n\nIn evdev_pass_values(), the input_event structure is allocated on the\nkernel stack and populated field-by-field. However, it is never fully\ninitialized. On architectures where struct input_event contains explicit\nor implicit padding (such as the 32-bit __pad field on SPARC64), these\npadding bytes are left uninitialized.\n\nWhen this event structure is subsequently passed to the client buffer\nand later copied to userspace, the uninitialized padding bytes leak\nkernel stack memory, potentially exposing sensitive information.\n\nSimilar issues exist in __evdev_queue_syn_dropped and __pass_event.\n\nFix this by explicitly zeroing the entire event structure with memset()\nbefore populating its fields. This ensures all padding bytes are cleared\nbefore the data crosses the security boundary."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:42.941Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d2e3839419ac4047835762c4d7712bda1101b57e"},{"url":"https://git.kernel.org/stable/c/c6d5fa46c1ee25d068fc730fd377f0f54188d290"},{"url":"https://git.kernel.org/stable/c/e748811d9b80a3e101110ff4b3c612e5fca54d98"},{"url":"https://git.kernel.org/stable/c/06a286b320236508d02ab2ccc9496352748652a8"},{"url":"https://git.kernel.org/stable/c/7d17e9454a9af3ec7aebb88b41a9deedd5b19a6b"},{"url":"https://git.kernel.org/stable/c/bd3c4108a56de34380edab670065e86283cb3029"},{"url":"https://git.kernel.org/stable/c/7e55ca1080f09d9f7112c7f20ac31f682c1f2374"},{"url":"https://git.kernel.org/stable/c/90f305f2c7a30257c683e13f4bf7c798eea992a0"}],"title":"Input: evdev - fix information leak in evdev_pass_values()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74673","datePublished":"2026-08-22T15:32:42.941Z","dateReserved":"2026-08-15T05:44:03.925Z","dateUpdated":"2026-08-22T15:32:42.941Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:41","lastModifiedDate":"2026-08-22 16:16:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74673","Ordinal":"1","Title":"Input: evdev - fix information leak in evdev_pass_values()","CVE":"CVE-2026-74673","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74673","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: evdev - fix information leak in evdev_pass_values()\n\nIn evdev_pass_values(), the input_event structure is allocated on the\nkernel stack and populated field-by-field. However, it is never fully\ninitialized. On architectures where struct input_event contains explicit\nor implicit padding (such as the 32-bit __pad field on SPARC64), these\npadding bytes are left uninitialized.\n\nWhen this event structure is subsequently passed to the client buffer\nand later copied to userspace, the uninitialized padding bytes leak\nkernel stack memory, potentially exposing sensitive information.\n\nSimilar issues exist in __evdev_queue_syn_dropped and __pass_event.\n\nFix this by explicitly zeroing the entire event structure with memset()\nbefore populating its fields. This ensures all padding bytes are cleared\nbefore the data crosses the security boundary.","Type":"Description","Title":"Input: evdev - fix information leak in evdev_pass_values()"}]}}}