{"id":"CVE-2026-23232","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-23232","generatedAt":"2026-10-28T03:24:16.940Z","title":"In the Linux kernel, the following vulnerability has been resolved: Revert \"f2fs: block cache/dio write during f2fs_enable_checkpoint()\" This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"f2fs: block cache/dio write during f2fs_enable_checkpoint()\"\n\nThis reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a.\n\nOriginal patch may cause below deadlock, revert it.\n\nwrite\t\t\t\tremount\n- write_begin\n - lock_page  --- lock A\n - prepare_write_begin\n  - f2fs_map_lock\n\t\t\t\t- f2fs_enable_checkpoint\n\t\t\t\t - down_write(cp_enable_rwsem)  --- lock B\n\t\t\t\t - sync_inode_sb\n\t\t\t\t  - writepages\n\t\t\t\t   - lock_page\t\t\t--- lock A\n   - down_read(cp_enable_rwsem)  --- lock A","published":"2026-03-04T15:16:13.000Z","lastModified":"2026-06-17T10:21:09.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-667"],"affected":["linux/linux kernel"],"epss":{"score":0.00108,"percentile":0.01197,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/3996b70209f145bfcf2afc7d05dd92c27b233b48","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b6382273801bc7c778545dd8004c9a9d750b4f62","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23232","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}