{"api_version":"1","generated_at":"2026-09-10T23:06:10+00:00","cve":"CVE-2026-80781","urls":{"html":"https://cve.report/CVE-2026-80781","api":"https://cve.report/api/cve/CVE-2026-80781.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80781","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80781"},"summary":{"title":"HID: core: fix OOB read of field->usage in hid_set_field()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: fix OOB read of field->usage in hid_set_field()\n\nhid_set_field() hands field->usage + offset to hid_dump_input() before\nthe guard that bounds offset:\n\n\thid_dump_input(field->report->device, field->usage + offset, value);\n\n\tif (offset >= field->report_count) {\n\t\thid_err(...);\n\t\treturn -1;\n\t}\n\nUnder CONFIG_DEBUG_FS hid_dump_input() dereferences that pointer, with\nbuf = hid_resolv_usage(usage->hid, NULL).  The usage[] array is\nallocated inline with the hid_field in hid_register_field() and holds\nfield->maxusage entries, so an offset past it reads off the end of the\nkvzalloc()ed allocation and into a neighbouring object.  Had the guard\nrun first, offset < report_count <= maxusage would already have confined\nthe pointer to the array.\n\nA caller supplies such an offset today.  picolcd_fb_send_tile()\nvalidates only report->maxfield before issuing\nhid_set_field(report->field[0], 11 + i, ...) for i = 0..31, so its\noffsets are fixed at 11..42 and are never checked against the bound\nfield.  When the device registers that field with fewer usages, the\nframebuffer deferred-io work drives the read on every tile.  KASAN\nreports a 4-byte slab-out-of-bounds read in hid_dump_input() below\nhid_set_field(), and the same boot logs \"offset (1) exceeds\nreport_count (1)\" from the guard that runs only afterwards.\n\nMove the hid_dump_input() call below the guard.  Because\nfield->maxusage >= field->report_count, the guard then establishes that\nfield->usage + offset lies inside the array before it is dereferenced,\nfor every caller and without changing behaviour on the valid path.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-04 16:18:03","updated_at":"2026-09-04 16:18:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5215ea00a747eca34cb2f603cfef91fef76c2558","name":"https://git.kernel.org/stable/c/5215ea00a747eca34cb2f603cfef91fef76c2558","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a13cdb19fcb223ed41bdab3bab42b98dba87e90b","name":"https://git.kernel.org/stable/c/a13cdb19fcb223ed41bdab3bab42b98dba87e90b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4993e1ab85d7d3f4a40d81852170f9665483bbd8","name":"https://git.kernel.org/stable/c/4993e1ab85d7d3f4a40d81852170f9665483bbd8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c1d9c16af51cc6ff92a5a062617d3b022dd01078","name":"https://git.kernel.org/stable/c/c1d9c16af51cc6ff92a5a062617d3b022dd01078","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9a1d7c5f0d82e8665715d5e47c9410c6a97e3748","name":"https://git.kernel.org/stable/c/9a1d7c5f0d82e8665715d5e47c9410c6a97e3748","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a38212687519f2a72f43e62dec1348a690412404","name":"https://git.kernel.org/stable/c/a38212687519f2a72f43e62dec1348a690412404","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/465544b3d6602cfbdc2305d5cbfb7f4954353b63","name":"https://git.kernel.org/stable/c/465544b3d6602cfbdc2305d5cbfb7f4954353b63","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/313ead1abed945544703b100a12c5a10fdf78409","name":"https://git.kernel.org/stable/c/313ead1abed945544703b100a12c5a10fdf78409","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cbcc0e8dea499e5ca86b583372ccb1815cccc570","name":"https://git.kernel.org/stable/c/cbcc0e8dea499e5ca86b583372ccb1815cccc570","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80781","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80781","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 465544b3d6602cfbdc2305d5cbfb7f4954353b63 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4993e1ab85d7d3f4a40d81852170f9665483bbd8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 313ead1abed945544703b100a12c5a10fdf78409 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 c1d9c16af51cc6ff92a5a062617d3b022dd01078 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a38212687519f2a72f43e62dec1348a690412404 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 9a1d7c5f0d82e8665715d5e47c9410c6a97e3748 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 5215ea00a747eca34cb2f603cfef91fef76c2558 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 cbcc0e8dea499e5ca86b583372ccb1815cccc570 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 a13cdb19fcb223ed41bdab3bab42b98dba87e90b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.267 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.218 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.185 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.154 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.106 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.47 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.11 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.1 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80781","cve":"CVE-2026-80781","epss":"0.001950000","percentile":"0.092860000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hid/hid-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"465544b3d6602cfbdc2305d5cbfb7f4954353b63","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"4993e1ab85d7d3f4a40d81852170f9665483bbd8","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"313ead1abed945544703b100a12c5a10fdf78409","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"c1d9c16af51cc6ff92a5a062617d3b022dd01078","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"a38212687519f2a72f43e62dec1348a690412404","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"9a1d7c5f0d82e8665715d5e47c9410c6a97e3748","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"5215ea00a747eca34cb2f603cfef91fef76c2558","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"cbcc0e8dea499e5ca86b583372ccb1815cccc570","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"a13cdb19fcb223ed41bdab3bab42b98dba87e90b","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/hid-core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.267","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.218","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.185","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.154","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.106","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.47","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.11","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.267","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.218","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.185","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.154","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.106","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.47","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.11","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.1","versionStartIncluding":"2.6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"2.6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: fix OOB read of field->usage in hid_set_field()\n\nhid_set_field() hands field->usage + offset to hid_dump_input() before\nthe guard that bounds offset:\n\n\thid_dump_input(field->report->device, field->usage + offset, value);\n\n\tif (offset >= field->report_count) {\n\t\thid_err(...);\n\t\treturn -1;\n\t}\n\nUnder CONFIG_DEBUG_FS hid_dump_input() dereferences that pointer, with\nbuf = hid_resolv_usage(usage->hid, NULL).  The usage[] array is\nallocated inline with the hid_field in hid_register_field() and holds\nfield->maxusage entries, so an offset past it reads off the end of the\nkvzalloc()ed allocation and into a neighbouring object.  Had the guard\nrun first, offset < report_count <= maxusage would already have confined\nthe pointer to the array.\n\nA caller supplies such an offset today.  picolcd_fb_send_tile()\nvalidates only report->maxfield before issuing\nhid_set_field(report->field[0], 11 + i, ...) for i = 0..31, so its\noffsets are fixed at 11..42 and are never checked against the bound\nfield.  When the device registers that field with fewer usages, the\nframebuffer deferred-io work drives the read on every tile.  KASAN\nreports a 4-byte slab-out-of-bounds read in hid_dump_input() below\nhid_set_field(), and the same boot logs \"offset (1) exceeds\nreport_count (1)\" from the guard that runs only afterwards.\n\nMove the hid_dump_input() call below the guard.  Because\nfield->maxusage >= field->report_count, the guard then establishes that\nfield->usage + offset lies inside the array before it is dereferenced,\nfor every caller and without changing behaviour on the valid path.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>"}],"providerMetadata":{"dateUpdated":"2026-09-04T15:12:52.980Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/465544b3d6602cfbdc2305d5cbfb7f4954353b63"},{"url":"https://git.kernel.org/stable/c/4993e1ab85d7d3f4a40d81852170f9665483bbd8"},{"url":"https://git.kernel.org/stable/c/313ead1abed945544703b100a12c5a10fdf78409"},{"url":"https://git.kernel.org/stable/c/c1d9c16af51cc6ff92a5a062617d3b022dd01078"},{"url":"https://git.kernel.org/stable/c/a38212687519f2a72f43e62dec1348a690412404"},{"url":"https://git.kernel.org/stable/c/9a1d7c5f0d82e8665715d5e47c9410c6a97e3748"},{"url":"https://git.kernel.org/stable/c/5215ea00a747eca34cb2f603cfef91fef76c2558"},{"url":"https://git.kernel.org/stable/c/cbcc0e8dea499e5ca86b583372ccb1815cccc570"},{"url":"https://git.kernel.org/stable/c/a13cdb19fcb223ed41bdab3bab42b98dba87e90b"}],"title":"HID: core: fix OOB read of field->usage in hid_set_field()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80781","datePublished":"2026-09-04T15:12:52.980Z","dateReserved":"2026-08-26T14:34:25.792Z","dateUpdated":"2026-09-04T15:12:52.980Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-04 16:18:03","lastModifiedDate":"2026-09-04 16:18:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80781","Ordinal":"1","Title":"HID: core: fix OOB read of field->usage in hid_set_field()","CVE":"CVE-2026-80781","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80781","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: fix OOB read of field->usage in hid_set_field()\n\nhid_set_field() hands field->usage + offset to hid_dump_input() before\nthe guard that bounds offset:\n\n\thid_dump_input(field->report->device, field->usage + offset, value);\n\n\tif (offset >= field->report_count) {\n\t\thid_err(...);\n\t\treturn -1;\n\t}\n\nUnder CONFIG_DEBUG_FS hid_dump_input() dereferences that pointer, with\nbuf = hid_resolv_usage(usage->hid, NULL).  The usage[] array is\nallocated inline with the hid_field in hid_register_field() and holds\nfield->maxusage entries, so an offset past it reads off the end of the\nkvzalloc()ed allocation and into a neighbouring object.  Had the guard\nrun first, offset < report_count <= maxusage would already have confined\nthe pointer to the array.\n\nA caller supplies such an offset today.  picolcd_fb_send_tile()\nvalidates only report->maxfield before issuing\nhid_set_field(report->field[0], 11 + i, ...) for i = 0..31, so its\noffsets are fixed at 11..42 and are never checked against the bound\nfield.  When the device registers that field with fewer usages, the\nframebuffer deferred-io work drives the read on every tile.  KASAN\nreports a 4-byte slab-out-of-bounds read in hid_dump_input() below\nhid_set_field(), and the same boot logs \"offset (1) exceeds\nreport_count (1)\" from the guard that runs only afterwards.\n\nMove the hid_dump_input() call below the guard.  Because\nfield->maxusage >= field->report_count, the guard then establishes that\nfield->usage + offset lies inside the array before it is dereferenced,\nfor every caller and without changing behaviour on the valid path.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>","Type":"Description","Title":"HID: core: fix OOB read of field->usage in hid_set_field()"}]}}}