{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23178","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.984Z","datePublished":"2026-02-14T16:27:10.108Z","dateUpdated":"2026-05-11T22:01:49.899Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:01:49.899Z"},"descriptions":[{"lang":"en","value":"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."}],"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"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/i2c-hid/i2c-hid-core.c"],"versions":[{"version":"85df713377ddc0482071c3e6b64c37bd1e48f1f1","lessThan":"f9c9ad89d845f88a1509e9d672f65d234425fde9","status":"affected","versionType":"git"},{"version":"85df713377ddc0482071c3e6b64c37bd1e48f1f1","lessThan":"cff3f619fd1cb40cdd89971df9001f075613d219","status":"affected","versionType":"git"},{"version":"85df713377ddc0482071c3e6b64c37bd1e48f1f1","lessThan":"786ec171788bdf9dda38789163f1b1fbb47f2d1e","status":"affected","versionType":"git"},{"version":"85df713377ddc0482071c3e6b64c37bd1e48f1f1","lessThan":"2124279f1f8c32c1646ce98e75a1a39b23b7db76","status":"affected","versionType":"git"},{"version":"85df713377ddc0482071c3e6b64c37bd1e48f1f1","lessThan":"2497ff38c530b1af0df5130ca9f5ab22c5e92f29","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/i2c-hid/i2c-hid-core.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"6.1.163","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.124","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.70","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.10","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.6.124"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.12.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.18.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f9c9ad89d845f88a1509e9d672f65d234425fde9"},{"url":"https://git.kernel.org/stable/c/cff3f619fd1cb40cdd89971df9001f075613d219"},{"url":"https://git.kernel.org/stable/c/786ec171788bdf9dda38789163f1b1fbb47f2d1e"},{"url":"https://git.kernel.org/stable/c/2124279f1f8c32c1646ce98e75a1a39b23b7db76"},{"url":"https://git.kernel.org/stable/c/2497ff38c530b1af0df5130ca9f5ab22c5e92f29"}],"title":"HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report()","x_generator":{"engine":"bippy-1.2.0"}}}}