{"id":"CVE-2023-52893","summary":"gsmi: fix null-deref in gsmi_get_variable","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngsmi: fix null-deref in gsmi_get_variable\n\nWe can get EFI variables without fetching the attribute, so we must\nallow for that in gsmi.\n\ncommit 859748255b43 (\"efi: pstore: Omit efivars caching EFI varstore\naccess layer\") added a new get_variable call with attr=NULL, which\ntriggers panic in gsmi.","modified":"2026-04-02T09:43:27.190794Z","published":"2024-08-21T06:10:33.043Z","related":["SUSE-SU-2024:3189-1","SUSE-SU-2024:3190-1","SUSE-SU-2024:3209-1","SUSE-SU-2024:3227-1","SUSE-SU-2024:3251-1","SUSE-SU-2024:3252-1","SUSE-SU-2024:3408-1","SUSE-SU-2024:3483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52893.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52893.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52893"},{"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":"74c5b31c6618f01079212332b2e5f6c42f2d6307"},{"fixed":"ee5763ef829bd923033510de6d1df7c73f085e4b"},{"fixed":"32313c11bdc8a02c577abaf865be3664ab30410a"},{"fixed":"ffef77794fb5f1245c3249b86342bad2299accb5"},{"fixed":"ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd"},{"fixed":"eb0421d90f916dffe96b4c049ddf01c0c50620d2"},{"fixed":"6646d769fdb0ce4318ef9afd127f8526d1ca8393"},{"fixed":"a769b05eeed7accc4019a1ed9799dd72067f1ce8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52893.json"}}],"schema_version":"1.7.5"}