{
  "cveId": "CVE-2023-53564",
  "url": "https://patchblox.com/security/cve/CVE-2023-53564",
  "summary": "CVE-2023-53564 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53564, released October 4, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ocfs2: fix defrag path triggering jbd2 ASSERT  c...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ocfs2: fix defrag path triggering jbd2 ASSERT  code path:  ocfs2_ioctl_move_extents  ocfs2_move_extents   ocfs2_defrag_extent    __ocfs2_move_extent     \u002B ocfs2_journal_access_di     \u002B ocfs2_split_extent  //sub-paths call jbd2_journal_restart     \u002B ocfs2_journal_dirty //crash by jbs2 ASSERT  crash stacks:  PID: 11297  TASK: ffff974a676dcd00  CPU: 67  COMMAND: \u0022defragfs.ocfs2\u0022  #0 [ffffb25d8dad3900] machine_kexec at ffffffff8386fe01  #1 [ffffb25d8dad3958] __crash_kexec at ffffffff8395959d  #2 [ffffb25d8dad3a20] crash_kexec at ffffffff8395a45d  #3 [ffffb25d8dad3a38] oops_end at ffffffff83836d3f  #4 [ffffb25d8dad3a58] do_trap at ffffffff83833205  #5 [ffffb25d8dad3aa0] do_invalid_op at ffffffff83833aa6  #6 [ffffb25d8dad3ac0] invalid_op at ffffffff84200d18     [exception RIP: jbd2_journal_dirty_metadata\u002B0x2ba]     RIP: ffffffffc09ca54a  RSP: ffffb25d8dad3b70  RFLAGS: 00010207     RAX: 0000000000000000  RBX: ffff9706eedc5248  RCX: 0000000000000000     RDX: 0000000000000001  RSI: ffff97337029ea28  RDI: ffff9706eedc5250     RBP: ffff9703c3520200   R8: 000000000f46b0b2   R9: 0000000000000000     R10: 0000000000000001  R11: 00000001000000fe  R12: ffff97337029ea28     R13: 0000000000000000  R14: ffff9703de59bf60  R15: ffff9706eedc5250     ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018  #7 [ffffb25d8dad3ba8] ocfs2_journal_dirty at ffffffffc137fb95 [ocfs2]  #8 [ffffb25d8dad3be8] __ocfs2_move_extent at ffffffffc139a950 [ocfs2]  #9 [ffffb25d8dad3c80] ocfs2_defrag_extent at ffffffffc139b2d2 [ocfs2]  Analysis  This bug has the same root cause of \u0027commit 7f27ec978b0e (\u0022ocfs2: call ocfs2_journal_access_di() before ocfs2_journal_dirty() in ocfs2_write_end_nolock()\u0022)\u0027.  For this bug, jbd2_journal_restart() is called by ocfs2_split_extent() during defragmenting.  How to fix  For ocfs2_split_extent() can handle journal operations totally by itself.  Caller doesn\u0027t need to call journal access/dirty pair, and caller only needs to call journal start/stop pair.  The fix method is to remove journal access/dirty from __ocfs2_move_extent().  The discussion for this patch: https://oss.oracle.com/pipermail/ocfs2-devel/2023-February/000647.html",
  "published": "2025-10-04T16:15:51Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00149,
  "epssPercentile": 0.04091,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53564",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53564",
      "released": "2025-10-04T16:15:51Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53564",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53564",
      "released": "2025-10-04T16:15:51Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53564",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53564",
      "released": "2025-10-04T16:15:51Z"
    }
  ],
  "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"
  }
}