{"api_version":"1","generated_at":"2026-07-23T20:43:24+00:00","cve":"CVE-2026-63943","urls":{"html":"https://cve.report/CVE-2026-63943","api":"https://cve.report/api/cve/CVE-2026-63943.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63943","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63943"},"summary":{"title":"Input: xpad - fix out-of-bounds access for Share button","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: xpad - fix out-of-bounds access for Share button\n\nxpadone_process_packet() receives len directly from urb->actual_length\nand uses it to index the share-button byte at data[len - 18] or\ndata[len - 26]. Since both len and data[0] are under the device's\ncontrol, a broken controller can send a GIP_CMD_INPUT packet with\nactual_length < 18 (e.g. 5 bytes) and reach this code path, causing\naccesses beyond the actual array.\n\nFix this by calculating the offset and checking bounds against the\npacket length.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:12","updated_at":"2026-07-19 16:17:12"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/6346b0895b574ce45f3747b9c508c72f70e6abef","name":"https://git.kernel.org/stable/c/6346b0895b574ce45f3747b9c508c72f70e6abef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6cdc46b38cf146ce81d4831b6472dbf7731849a2","name":"https://git.kernel.org/stable/c/6cdc46b38cf146ce81d4831b6472dbf7731849a2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9749db57233b396353ad5dee81eec9d9880c9246","name":"https://git.kernel.org/stable/c/9749db57233b396353ad5dee81eec9d9880c9246","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/37ec54abfdd63a63fd50734a9c4e4cbc1e5795af","name":"https://git.kernel.org/stable/c/37ec54abfdd63a63fd50734a9c4e4cbc1e5795af","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bcfb4833cd4078a1a356ef451838b75cd233099e","name":"https://git.kernel.org/stable/c/bcfb4833cd4078a1a356ef451838b75cd233099e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63943","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63943","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cbc82e7db16d59c301457312a624a7de2c03cd4a bcfb4833cd4078a1a356ef451838b75cd233099e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302a0cd0bbc450998429a3f4267970a4b93251a8 37ec54abfdd63a63fd50734a9c4e4cbc1e5795af git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ef46367073b107ec22f46fe5f12176e87c238e8 9749db57233b396353ad5dee81eec9d9880c9246 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ef46367073b107ec22f46fe5f12176e87c238e8 6346b0895b574ce45f3747b9c508c72f70e6abef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ef46367073b107ec22f46fe5f12176e87c238e8 6cdc46b38cf146ce81d4831b6472dbf7731849a2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a7e3ddd1d9a3d0b26465ed01d464e3c05479ebc8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.91 6.6.143 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.29 6.12.93 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14.7 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.93 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.35 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.12 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63943","cve":"CVE-2026-63943","epss":"0.002000000","percentile":"0.100210000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/input/joystick/xpad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bcfb4833cd4078a1a356ef451838b75cd233099e","status":"affected","version":"cbc82e7db16d59c301457312a624a7de2c03cd4a","versionType":"git"},{"lessThan":"37ec54abfdd63a63fd50734a9c4e4cbc1e5795af","status":"affected","version":"302a0cd0bbc450998429a3f4267970a4b93251a8","versionType":"git"},{"lessThan":"9749db57233b396353ad5dee81eec9d9880c9246","status":"affected","version":"4ef46367073b107ec22f46fe5f12176e87c238e8","versionType":"git"},{"lessThan":"6346b0895b574ce45f3747b9c508c72f70e6abef","status":"affected","version":"4ef46367073b107ec22f46fe5f12176e87c238e8","versionType":"git"},{"lessThan":"6cdc46b38cf146ce81d4831b6472dbf7731849a2","status":"affected","version":"4ef46367073b107ec22f46fe5f12176e87c238e8","versionType":"git"},{"status":"affected","version":"a7e3ddd1d9a3d0b26465ed01d464e3c05479ebc8","versionType":"git"},{"lessThan":"6.6.143","status":"affected","version":"6.6.91","versionType":"semver"},{"lessThan":"6.12.93","status":"affected","version":"6.12.29","versionType":"semver"},{"lessThan":"6.15","status":"affected","version":"6.14.7","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/input/joystick/xpad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"6.6.91","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"6.12.29","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: xpad - fix out-of-bounds access for Share button\n\nxpadone_process_packet() receives len directly from urb->actual_length\nand uses it to index the share-button byte at data[len - 18] or\ndata[len - 26]. Since both len and data[0] are under the device's\ncontrol, a broken controller can send a GIP_CMD_INPUT packet with\nactual_length < 18 (e.g. 5 bytes) and reach this code path, causing\naccesses beyond the actual array.\n\nFix this by calculating the offset and checking bounds against the\npacket length."}],"providerMetadata":{"dateUpdated":"2026-07-19T14:55:38.411Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/bcfb4833cd4078a1a356ef451838b75cd233099e"},{"url":"https://git.kernel.org/stable/c/37ec54abfdd63a63fd50734a9c4e4cbc1e5795af"},{"url":"https://git.kernel.org/stable/c/9749db57233b396353ad5dee81eec9d9880c9246"},{"url":"https://git.kernel.org/stable/c/6346b0895b574ce45f3747b9c508c72f70e6abef"},{"url":"https://git.kernel.org/stable/c/6cdc46b38cf146ce81d4831b6472dbf7731849a2"}],"title":"Input: xpad - fix out-of-bounds access for Share button","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63943","datePublished":"2026-07-19T14:55:38.411Z","dateReserved":"2026-07-19T07:54:57.022Z","dateUpdated":"2026-07-19T14:55:38.411Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:12","lastModifiedDate":"2026-07-19 16:17:12","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63943","Ordinal":"1","Title":"Input: xpad - fix out-of-bounds access for Share button","CVE":"CVE-2026-63943","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63943","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: xpad - fix out-of-bounds access for Share button\n\nxpadone_process_packet() receives len directly from urb->actual_length\nand uses it to index the share-button byte at data[len - 18] or\ndata[len - 26]. Since both len and data[0] are under the device's\ncontrol, a broken controller can send a GIP_CMD_INPUT packet with\nactual_length < 18 (e.g. 5 bytes) and reach this code path, causing\naccesses beyond the actual array.\n\nFix this by calculating the offset and checking bounds against the\npacket length.","Type":"Description","Title":"Input: xpad - fix out-of-bounds access for Share button"}]}}}