{"apiVersion":"1.0","identifier":"CVE-2026-68459","description":"In the Linux kernel, the following vulnerability has been resolved: f2fs: fix potential deadlock in gc_merge path of f2fs_balance_fs() When we mount device w/ gc_merge mount option, we may suffer below potential deadlock: Kworker GC trehad Truncator - f2fs_write_cache_pages - f2fs_write_single_data_page - f2fs_do_write_data_page - folio_start_writeback --- set writeback flag on folio - f2fs_outplace_write_data : cached folio in internal bio cache - f2fs_balance_fs - wake_up(gc_thread) : wake up gc thread to run foreground GC - finish_wait(fggc_wq) : wait on the waitqueue --- wait on GC thread to finish the work - truncate_inode_pages_range - __filemap_get_folio(, FGP_LOCK) --- lock folio - truncate_inode_partial_folio - folio_wait_writeback --- wait on writeback being cleared - do_garbage_collect - move_data_page - f2fs_get_lock_data_folio - lock on folio --- blocked on folio-s lock In order to avoid such deadlock, let-s call below functions to commit cached bios in GC_MERGE path of f2fs_balance_fs() as the same as we did in NOGC_MERGE path. - f2fs_submit_merged_write(sbi, DATA); - f2fs_submit_all_merged_ipu_writes(sbi);","publishedAt":"2026-08-15T06:18:15","lastModifiedAt":"2026-08-17T06:17:55","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68459","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00173,"riskScore":0,"affectedProduct":"linux","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-68459","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-68459","en":"https://www.redsauce.net/en/cves/CVE-2026-68459","fr":"https://www.redsauce.net/fr/cves/CVE-2026-68459","pt":"https://www.redsauce.net/pt/cves/CVE-2026-68459","de":"https://www.redsauce.net/de/cves/CVE-2026-68459","sk":"https://www.redsauce.net/sk/cves/CVE-2026-68459","el":"https://www.redsauce.net/el/cves/CVE-2026-68459"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-68459"}}