{"id":"CVE-2026-23178","revision":"3d2103f6785f4cab869500487efa2fc7","records":[{"revision":"3d2103f6785f4cab869500487efa2fc7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23178","aliases":[],"title":"HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()\n\n`i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data\ninto `ihid->rawbuf`.\n\nThe former can come from the userspace in the hidraw driver and is only\nbounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set\n`max_buffer_size` field of `struct hid_ll_driver` which we do not).\n\nThe latter has size determined at runtime by the maximum size of\ndifferent report types you could receive on any particular device and\ncan be a much smaller value.\n\nFix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`.\n\nThe impact is low since access to hidraw devices requires root.","state":0,"publishedAt":"2026-02-14T16:27:10.108+00:00","modifiedAt":"2026-10-19T18:25:34.295+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/i2c-hid/i2c-hid-core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"85df713377ddc0482071c3e6b64c37bd1e48f1f1\",\n                            \"lessThan\": \"f9c9ad89d845f88a1509e9d672f65d234425fde9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85df713377ddc0482071c3e6b64c37bd1e48f1f1\",\n                            \"lessThan\": \"cff3f619fd1cb40cdd89971df9001f075613d219\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85df713377ddc0482071c3e6b64c37bd1e48f1f1\",\n                            \"lessThan\": \"786ec171788bdf9dda38789163f1b1fbb47f2d1e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85df713377ddc0482071c3e6b64c37bd1e48f1f1\",\n                            \"lessThan\": \"2124279f1f8c32c1646ce98e75a1a39b23b7db76\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"85df713377ddc0482071c3e6b64c37bd1e48f1f1\",\n                            \"lessThan\": \"2497ff38c530b1af0df5130ca9f5ab22c5e92f29\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hid/i2c-hid/i2c-hid-core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.163\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.124\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.70\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.10\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9","https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219","https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e","https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76","https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23178","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23178","identifiers":["CVE-2026-23178"]},"retained":false,"historicalAffected":[]}],"coverage":[]}