{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52444",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52444"
  ],
  "published": "2024-02-22T16:22:12Z",
  "summary": "f2fs: fix to avoid dirent corruption",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid dirent corruption\n\nAs Al reported in link[1]:\n\nf2fs_rename()\n...\n\tif (old_dir != new_dir && !whiteout)\n\t\tf2fs_set_link(old_inode, old_dir_entry,\n\t\t\t\t\told_dir_page, new_dir);\n\telse\n\t\tf2fs_put_page(old_dir_page, 0);\n\nYou want correct inumber in the \"..\" link.  And cross-directory\nrename does move the source to new parent, even if you'd been asked\nto leave a whiteout in the old place.\n\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\n\nWith below testcase, it may cause dirent corruption, due to it missed\nto call f2fs_set_link() to update \"..\" link to new directory.\n- mkdir -p dir/foo\n- renameat2 -w dir/foo bar\n\n[ASSERT] (__chk_dots_dentries:1421)  --> Bad inode number[0x4] for '..', parent parent ino is [0x3]\n[FSCK] other corrupted bugs                           [Fail]",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
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        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1",
        "1:6.1.73-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52444"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46"
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    {
      "type": "FIX",
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      "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310"
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      "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7"
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    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
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}