{"id":"CVE-2023-54264","summary":"fs/sysv: Null check to prevent null-ptr-deref bug","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/sysv: Null check to prevent null-ptr-deref bug\n\nsb_getblk(inode-\u003ei_sb, parent) return a null ptr and taking lock on\nthat leads to the null-ptr-deref bug.","modified":"2026-04-02T09:45:43.522435Z","published":"2025-12-30T12:15:56.893Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:0316-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54264.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0a44ceba77c3267f8505dda102a59367dc24caee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635"},{"type":"WEB","url":"https://git.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54264.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54264"},{"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":"e5657933863f43cc6bb76a54d659303dafaa9e58"},{"fixed":"e976988bc245ec3768cc0f76bed7d05488a7dd0f"},{"fixed":"baa60c66a310c50785289b0ede6fdce8ec3219c7"},{"fixed":"0a44ceba77c3267f8505dda102a59367dc24caee"},{"fixed":"7f740bc696d4617f8ee44565e8ac0d36278a1e91"},{"fixed":"afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635"},{"fixed":"1416eebaad80bdc85ad9f97f27242011b031e2a9"},{"fixed":"e28f376dd8dfcc4e880ac101184132bc08703f6e"},{"fixed":"ea2b62f305893992156a798f665847e0663c9f41"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54264.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.19"},{"fixed":"4.14.322"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.291"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.253"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.190"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.126"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.4.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54264.json"}}],"schema_version":"1.7.5"}