{"id":"CVE-2026-74603","summary":"ptp: ocp: Fix board ID over-read","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nptp: ocp: Fix board ID over-read\n\nThe EEPROM board ID is a fixed 13-byte field and is not guaranteed to\ncontain a NUL terminator. Passing it directly to\ndevlink_info_version_fixed_put() treats it as a C string and may read\nbeyond the field.\n\nFormat at most OCP_BOARD_ID_LEN bytes into the existing local buffer\nbefore reporting the ID. Use a precision limit because the snprintf()\noutput size alone does not bound the source string scan.","modified":"2026-08-27T11:30:38.002278972Z","published":"2026-08-22T15:31:51.544Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74603.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3d965811be78473654e6e8cc8e4fb7b6b87aa6c1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5fd91dd4a143479b0575fb1f202ec1c501e71fd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b69f2ef10cdb018c0b127a7cab88e590bbddba4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/72ef3ce80078199bfad32f98d055f44ba7cd0c3d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f8d7e5751267637190eff887c971d5b468106213"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f92558bbe78d6284fedd053900f82a70f0aa8707"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74603.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74603"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0cfcdd1ebcfe1a9b262f6ad8419580720dc843c4"},{"fixed":"72ef3ce80078199bfad32f98d055f44ba7cd0c3d"},{"fixed":"3d965811be78473654e6e8cc8e4fb7b6b87aa6c1"},{"fixed":"f92558bbe78d6284fedd053900f82a70f0aa8707"},{"fixed":"5fd91dd4a143479b0575fb1f202ec1c501e71fd5"},{"fixed":"f8d7e5751267637190eff887c971d5b468106213"},{"fixed":"6b69f2ef10cdb018c0b127a7cab88e590bbddba4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74603.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.18.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.152"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.104"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74603.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}