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nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system. In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot. Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page.

Announced Source revision 1
Original source ↗

CVE-2024-39469

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-2024-39469

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": "2ba466d74ed74f073257f86e61519cb8f8f46184",
        "lessThan": "2ac8a2fe22bdde9eecce2a42cf5cab79333fb428",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
        "lessThan": "405b71f1251e5ae865f53bd27c45114e6c83bee3",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "c77ad608df6c091fe64ecb91f41ef7cb465587f1",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "11a2edb70356a2202dcb7c9c189c8356ab4752cd",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "129dcd3e7d036218db3f59c82d82004b9539ed82",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
        "lessThan": "d18b05eda7fa77f02114f15b02c009f28ee42346",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "7373a51e7998b508af7136530f3a997b286ce81c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/nilfs2/dir.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.30"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.30",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.317",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.279",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.162",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.95",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.35",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.9.5",
        "versionType": "semver",
        "lessThanOrEqual": "6.9.*"
      },
      {
        "status": "unaffected",
        "version": "6.10",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/nilfs2/dir.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-39469

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26628 · Revision 1
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Publisher date
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