{"id":"CVE-2026-80707","summary":"can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: transport: j1939_session_fresh_new(): initialize receive buffer\n\nZero the allocated buffer in j1939_session_fresh_new() to ensure it\ncontains no residual data.\n\nWhile there is a potential performance impact if users allocate maximum\nsized ETP buffers, most real-world use cases are not noticeably affected\nsince the maximum known buffer size is typically around 65K.\n\n[mkl: add Message-ID]","modified":"2026-08-31T03:30:58.140530162Z","published":"2026-08-28T06:53:08.244Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80707.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269"},{"type":"WEB","url":"https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80707.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80707"},{"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":"9d71dd0c70099914fcd063135da3c580865e924c"},{"fixed":"348818277a3646d5b9fa60c9d20c00dc4bc86832"},{"fixed":"f3e120a34b336079479fa10f706f0636eaa6e751"},{"fixed":"bbfa49d1e287de44994955b44d19281be3195b44"},{"fixed":"194d67e92197eb820f4c2c6605d9721333b3eba0"},{"fixed":"038bad8e16c2e28acf31f0b527a816fb23a57269"},{"fixed":"8604a3b81b9d0ceaf04fee5f52e701f623a179f9"},{"fixed":"d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf"},{"fixed":"eb96c58907922546e415e545fe9a14ea63b02719"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80707.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.10.265"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.216"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.151"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80707.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}