{"id":"CVE-2023-53620","summary":"md: fix soft lockup in status_resync","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix soft lockup in status_resync\n\nstatus_resync() will calculate 'curr_resync - recovery_active' to show\nuser a progress bar like following:\n\n[============\u003e........]  resync = 61.4%\n\n'curr_resync' and 'recovery_active' is updated in md_do_sync(), and\nstatus_resync() can read them concurrently, hence it's possible that\n'curr_resync - recovery_active' can overflow to a huge number. In this\ncase status_resync() will be stuck in the loop to print a large amount\nof '=', which will end up soft lockup.\n\nFix the problem by setting 'resync' to MD_RESYNC_ACTIVE in this case,\nthis way resync in progress will be reported to user.","modified":"2026-04-02T09:44:37.940863Z","published":"2025-10-07T15:19:26.686Z","related":["SUSE-SU-2025:4189-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53620.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/23309704e90859af2662bedc44101e6d1d2ece7e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6efddf1e32e2a264694766ca485a4f5e04ee82a7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53620.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53620"},{"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":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69"},{"fixed":"23309704e90859af2662bedc44101e6d1d2ece7e"},{"fixed":"6efddf1e32e2a264694766ca485a4f5e04ee82a7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53620.json"}}],"schema_version":"1.7.5"}