{"id":"CVE-2023-53861","summary":"ext4: correct grp validation in ext4_mb_good_group","details":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: correct grp validation in ext4_mb_good_group\n\nGroup corruption check will access memory of grp and will trigger kernel\ncrash if grp is NULL. So do NULL check before corruption check.","modified":"2026-03-31T17:30:02.763240Z","published":"2025-12-09T01:30:29.423Z","related":["SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53861.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/245759d987b617d183061db6ab8886ebb5cc78e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3e24082f16825279054a2b8a5e668d65070bbf07"},{"type":"WEB","url":"https://git.kernel.org/stable/c/772ca4bc1d0d21320ef2ecc0f9e4f90ea85a035d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83a9d5f5ec7e75640b1ba0bbd77a4888df798bb4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a9ce5993a0f5c0887c8a1b4ffa3b8046fbcfdc93"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e69d665987db0e37896adf78a7e718f9a0a75d3f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53861.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53861"},{"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":"100c0ad6c04597fefeaaba2bb1827cc015d95067"},{"fixed":"245759d987b617d183061db6ab8886ebb5cc78e9"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"620a3c28221bb219b81bc0bffd065cc187494302"},{"fixed":"3e24082f16825279054a2b8a5e668d65070bbf07"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b4319e457d6e3fb33e443efeaf4634fc36e8a9ed"},{"fixed":"772ca4bc1d0d21320ef2ecc0f9e4f90ea85a035d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5354b2af34064a4579be8bc0e2f15a7b70f14b5f"},{"fixed":"83a9d5f5ec7e75640b1ba0bbd77a4888df798bb4"},{"fixed":"e69d665987db0e37896adf78a7e718f9a0a75d3f"},{"fixed":"a9ce5993a0f5c0887c8a1b4ffa3b8046fbcfdc93"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"31668cebf45adfb6283e465e641c4f5a21b07afa"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53861.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.195"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.132"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.4.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.5.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53861.json"}}],"schema_version":"1.7.5"}