{
  "cveId": "CVE-2026-68459",
  "url": "https://patchblox.com/security/cve/CVE-2026-68459",
  "summary": "CVE-2026-68459 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-68459, released August 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix potential deadlock in gc_merge path of...",
  "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\t\t\t\t\tGC trehad\t\t\tTruncator - 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 \t\t\t\t\t\t\t\t\t- truncate_inode_pages_range \t\t\t\t\t\t\t\t\t - __filemap_get_folio(, FGP_LOCK)  --- lock folio \t\t\t\t\t\t\t\t\t - truncate_inode_partial_folio \t\t\t\t\t\t\t\t\t  - folio_wait_writeback            --- wait on writeback being cleared \t\t\t\t\t- do_garbage_collect \t\t\t\t\t - move_data_page \t\t\t\t\t  - f2fs_get_lock_data_folio \t\t\t\t\t   - lock on folio  --- blocked on folio\u0027s lock  In order to avoid such deadlock, let\u0027s 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);",
  "published": "2026-08-15T06:18:15Z",
  "severity": "",
  "epss": 0.00215,
  "epssPercentile": 0.11903,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.180-1",
      "fix": "DEBIAN-CVE-2026-68459",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68459",
      "released": "2026-08-15T22:38:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.96-1",
      "fix": "DEBIAN-CVE-2026-68459",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68459",
      "released": "2026-08-15T22:38:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-68459",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68459",
      "released": "2026-08-15T22:38:55Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}