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f2fs: fix to avoid dirent corruption

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid dirent corruption As Al reported in link[1]: f2fs_rename() ... if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0); You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]

Announced Source revision 1
Original source ↗

CVE-2023-52444

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2023-52444

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
        "lessThan": "02160112e6d45c2610b049df6eb693d7a2e57b46",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
        "lessThan": "5624a3c1b1ebc8991318e1cce2aa719542991024",
        "versionType": "git"
      },
      {
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        "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
        "lessThan": "6f866885e147d33efc497f1095f35b2ee5ec7310",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
        "lessThan": "f100ba617d8be6c98a68f3744ef7617082975b77",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "f0145860c20be6bae6785c7a2249577674702ac7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
        "lessThan": "d3c0b49aaa12a61d560528f5d605029ab57f0728",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "2fb4867f4405aea8c0519d7d188207f232a57862",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "53edb549565f55ccd0bdf43be3d66ce4c2d48b28",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/f2fs/namei.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.306",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.268",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.148",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.75",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7.2",
        "versionType": "semver",
        "lessThanOrEqual": "6.7.*"
      },
      {
        "status": "unaffected",
        "version": "6.8",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/f2fs/namei.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2023-52444

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26376 · Revision 1
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Publisher date
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