CVE-2025-37954 (GCVE-0-2025-37954)
Vulnerability from cvelistv5
Published
2025-05-20 16:01
Modified
2025-05-26 05:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in open_cached_dir with lease breaks A pre-existing valid cfid returned from find_or_create_cached_dir might race with a lease break, meaning open_cached_dir doesn't consider it valid, and thinks it's newly-constructed. This leaks a dentry reference if the allocation occurs before the queued lease break work runs. Avoid the race by extending holding the cfid_list_lock across find_or_create_cached_dir and when the result is checked.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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          "programFiles": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Avoid race in open_cached_dir with lease breaks\n\nA pre-existing valid cfid returned from find_or_create_cached_dir might\nrace with a lease break, meaning open_cached_dir doesn\u0027t consider it\nvalid, and thinks it\u0027s newly-constructed. This leaks a dentry reference\nif the allocation occurs before the queued lease break work runs.\n\nAvoid the race by extending holding the cfid_list_lock across\nfind_or_create_cached_dir and when the result is checked."
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      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:24:28.211Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/3ca02e63edccb78ef3659bebc68579c7224a6ca2"
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      "title": "smb: client: Avoid race in open_cached_dir with lease breaks",
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    "cveId": "CVE-2025-37954",
    "datePublished": "2025-05-20T16:01:48.561Z",
    "dateReserved": "2025-04-16T04:51:23.973Z",
    "dateUpdated": "2025-05-26T05:24:28.211Z",
    "state": "PUBLISHED"
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  }
}


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