ghsa-p55c-m7rf-5552
Vulnerability from github
Published
2025-04-16 15:34
Modified
2025-04-16 15:34
Details

In the Linux kernel, the following vulnerability has been resolved:

jfs: add check read-only before truncation in jfs_truncate_nolock()

Added a check for "read-only" mode in the jfs_truncate_nolock function to avoid errors related to writing to a read-only filesystem.

Call stack:

block_write_begin() { jfs_write_failed() { jfs_truncate() { jfs_truncate_nolock() { txEnd() { ... log = JFS_SBI(tblk->sb)->log; // (log == NULL)

If the isReadOnly(ip) condition is triggered in jfs_truncate_nolock, the function execution will stop, and no further data modification will occur. Instead, the xtTruncate function will be called with the "COMMIT_WMAP" flag, preventing modifications in "read-only" mode.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58094"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T15:15:53Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: add check read-only before truncation in jfs_truncate_nolock()\n\nAdded a check for \"read-only\" mode in the `jfs_truncate_nolock`\nfunction to avoid errors related to writing to a read-only\nfilesystem.\n\nCall stack:\n\nblock_write_begin() {\n  jfs_write_failed() {\n    jfs_truncate() {\n      jfs_truncate_nolock() {\n        txEnd() {\n          ...\n          log = JFS_SBI(tblk-\u003esb)-\u003elog;\n          // (log == NULL)\n\nIf the `isReadOnly(ip)` condition is triggered in\n`jfs_truncate_nolock`, the function execution will stop, and no\nfurther data modification will occur. Instead, the `xtTruncate`\nfunction will be called with the \"COMMIT_WMAP\" flag, preventing\nmodifications in \"read-only\" mode.",
  "id": "GHSA-p55c-m7rf-5552",
  "modified": "2025-04-16T15:34:38Z",
  "published": "2025-04-16T15:34:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58094"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5799dd77054c1ec49b0088b006c9908e256843b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f605bc3e162f5c6faa9bd3602ce496053d06a4bb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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