{"id":"CVE-2023-53620","title":"md: fix soft lockup in status_resync","summary":"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[============>........…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 23309704e90859af2662bedc44101e6d1d2ece7e","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6efddf1e32e2a264694766ca485a4f5e04ee82a7","Linux 2.6.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:25:44.510528Z"},"published":"2025-10-07","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:17.729Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53620","references":[{"url":"https://git.kernel.org/stable/c/b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69"},{"url":"https://git.kernel.org/stable/c/23309704e90859af2662bedc44101e6d1d2ece7e"},{"url":"https://git.kernel.org/stable/c/6efddf1e32e2a264694766ca485a4f5e04ee82a7"}],"tags":["cve.org"],"epss":0.00156,"epssPercentile":0.04728,"ingestedAt":"2026-11-05T22:38:31.818Z","slug":"CVE-2023-53620","body":"## Overview\n\nIn 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[============>........]  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.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 23309704e90859af2662bedc44101e6d1d2ece7e`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6efddf1e32e2a264694766ca485a4f5e04ee82a7`\n- `Linux 2.6.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}