{"id":"CVE-2026-64367","state":"PUBLISHED","title":"HID: hid-goodix-spi: validate report size to prevent stack buffer overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: hid-goodix-spi: validate report size to prevent stack buffer overflow\n\ngoodix_hid_set_raw_report() builds a protocol frame in a 128-byte stack\nbuffer (tmp_buf), writing an 11-12 byte header followed by the\ncaller-supplied report data.  The HID core caps report size at\nHID_MAX_BUFFER_SIZE (16384) by default, while the driver does not set\nhid_ll_driver.max_buffer_size and performs no bounds checking before\ncopying the payload:\n\n    memcpy(tmp_buf + tx_len, buf, len);\n\nA hidraw SET_REPORT ioctl with a report larger than ~116 bytes\noverflows the stack buffer.\n\nAdd a size check after constructing the header, rejecting reports that\nwould exceed the buffer capacity.\n\nDiscovered by Atuin - Automated Vulnerability Discovery Engine.","publishedAt":"2026-07-25T08:50:21.214Z","updatedAt":"2026-08-17T04:54:16.646Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"ad47ad624f2fce0bc44bbadb664242461a97d774","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"dae1d000ddfd5c2140b036e47fff0c497ae9c64b","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"835fcc8655569737e3f057d42875a96259db74c2","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"db0a0768d09273aadadeb76730cd658d720333a4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-goodix-spi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-goodix-spi.c"]}],"references":["https://git.kernel.org/stable/c/ad47ad624f2fce0bc44bbadb664242461a97d774","https://git.kernel.org/stable/c/dae1d000ddfd5c2140b036e47fff0c497ae9c64b","https://git.kernel.org/stable/c/835fcc8655569737e3f057d42875a96259db74c2","https://git.kernel.org/stable/c/db0a0768d09273aadadeb76730cd658d720333a4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64367.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64367","state":"PUBLISHED","datePublished":"2026-07-25T08:50:21.214Z","dateUpdated":"2026-08-17T04:54:16.646Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T15:36:31.783Z"},"containers":{"cna":{"title":"HID: hid-goodix-spi: validate report size to prevent stack buffer overflow","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: hid-goodix-spi: validate report size to prevent stack buffer overflow\n\ngoodix_hid_set_raw_report() builds a protocol frame in a 128-byte stack\nbuffer (tmp_buf), writing an 11-12 byte header followed by the\ncaller-supplied report data.  The HID core caps report size at\nHID_MAX_BUFFER_SIZE (16384) by default, while the driver does not set\nhid_ll_driver.max_buffer_size and performs no bounds checking before\ncopying the payload:\n\n    memcpy(tmp_buf + tx_len, buf, len);\n\nA hidraw SET_REPORT ioctl with a report larger than ~116 bytes\noverflows the stack buffer.\n\nAdd a size check after constructing the header, rejecting reports that\nwould exceed the buffer capacity.\n\nDiscovered by Atuin - Automated Vulnerability Discovery Engine."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"ad47ad624f2fce0bc44bbadb664242461a97d774","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"dae1d000ddfd5c2140b036e47fff0c497ae9c64b","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"835fcc8655569737e3f057d42875a96259db74c2","versionType":"git"},{"version":"75e16c8ce283bb88e77704dc8fa041c577caac0f","status":"affected","lessThan":"db0a0768d09273aadadeb76730cd658d720333a4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-goodix-spi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-goodix-spi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ad47ad624f2fce0bc44bbadb664242461a97d774"},{"url":"https://git.kernel.org/stable/c/dae1d000ddfd5c2140b036e47fff0c497ae9c64b"},{"url":"https://git.kernel.org/stable/c/835fcc8655569737e3f057d42875a96259db74c2"},{"url":"https://git.kernel.org/stable/c/db0a0768d09273aadadeb76730cd658d720333a4"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - An attacker reaches the flaw locally through a SET_REPORT operation on the Goodix touchscreen's /dev/hidraw device.\nAC:L - A single attacker-controlled report exceeding the 116-117 byte safe payload limit deterministically triggers the overwrite, with no race or external condition required.\nPR:L - The kernel path has no capability or namespace checks; an unprivileged user granted access to the hidraw node can trigger it.\nUI:N - No victim action is required once the attacker can access the device node.\nS:U - Any privilege escalation or kernel compromise remains within the host kernel's security authority.\nC:H - The attacker-controlled stack overwrite can corrupt control data and enable kernel code execution, thereby exposing arbitrary kernel memory.\nI:H - The attacker can overwrite far beyond the 128-byte stack buffer with controlled data, potentially hijacking control flow and modifying arbitrary kernel state.\nA:H - The overflow can reliably trigger stack-canary failure, kernel oops, or panic, and can be repeated through additional SET_REPORT requests."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T04:54:16.646Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}