{"schema_version":"1.9.0","id":"CVE-2023-53360","published":"2025-09-17T14:56:50.287Z","modified":"2026-08-12T03:51:24.350747099Z","related":["SUSE-SU-2025:03600-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:3751-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4141-1"],"summary":"NFSv4.2: Rework scratch handling for READ_PLUS (again)","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4.2: Rework scratch handling for READ_PLUS (again)\n\nI found that the read code might send multiple requests using the same\nnfs_pgio_header, but nfs4_proc_read_setup() is only called once. This is\nhow we ended up occasionally double-freeing the scratch buffer, but also\nmeans we set a NULL pointer but non-zero length to the xdr scratch\nbuffer. This results in an oops the first time decoding needs to copy\nsomething to scratch, which frequently happens when decoding READ_PLUS\nhole segments.\n\nI fix this by moving scratch handling into the pageio read code. I\nprovide a function to allocate scratch space for decoding read replies,\nand free the scratch buffer when the nfs_pgio_header is freed.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"886959f425b6a936a30b82a297ae3aecb3b8230f"},{"fixed":"adac9f0ddd2b291c7ce41f549fdb27a13616cff5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fbd2a05f29a95d5b42b294bf47e55a711424965b"},{"fixed":"a2f4cb206bd94b3f4a7bb05fcdce9525283b5681"},{"fixed":"ae5d5672f1db711e91db6f52df5cb16ecd8f5692"},{"fixed":"303a78052091c81e9003915c521fdca1c7e117af"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53360.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.4.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.5.0"},{"fixed":"6.5.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53360.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/303a78052091c81e9003915c521fdca1c7e117af"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a2f4cb206bd94b3f4a7bb05fcdce9525283b5681"},{"type":"WEB","url":"https://git.kernel.org/stable/c/adac9f0ddd2b291c7ce41f549fdb27a13616cff5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae5d5672f1db711e91db6f52df5cb16ecd8f5692"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53360.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53360"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53360.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}