CVE-2025-38382 (GCVE-0-2025-38382)
Vulnerability from cvelistv5
Published
2025-07-25 12:53
Modified
2025-07-28 04:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix iteration of extrefs during log replay At __inode_add_ref() when processing extrefs, if we jump into the next label we have an undefined value of victim_name.len, since we haven't initialized it before we did the goto. This results in an invalid memory access in the next iteration of the loop since victim_name.len was not initialized to the length of the name of the current extref. Fix this by initializing victim_name.len with the current extref's name length.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1cf474cd474bc5d3ef63086ffd009a87a5b7bb2e
Version: e43eec81c5167b655b72c781b0e75e62a05e415e
Version: e43eec81c5167b655b72c781b0e75e62a05e415e
Version: e43eec81c5167b655b72c781b0e75e62a05e415e
Version: e43eec81c5167b655b72c781b0e75e62a05e415e
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{
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          "product": "Linux",
          "programFiles": [
            "fs/btrfs/tree-log.c"
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix iteration of extrefs during log replay\n\nAt __inode_add_ref() when processing extrefs, if we jump into the next\nlabel we have an undefined value of victim_name.len, since we haven\u0027t\ninitialized it before we did the goto. This results in an invalid memory\naccess in the next iteration of the loop since victim_name.len was not\ninitialized to the length of the name of the current extref.\n\nFix this by initializing victim_name.len with the current extref\u0027s name\nlength."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:20:36.213Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/54a7081ed168b72a8a2d6ef4ba3a1259705a2926"
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      ],
      "title": "btrfs: fix iteration of extrefs during log replay",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38382",
    "datePublished": "2025-07-25T12:53:23.665Z",
    "dateReserved": "2025-04-16T04:51:24.010Z",
    "dateUpdated": "2025-07-28T04:20:36.213Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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