CVE-2025-38058 (GCVE-0-2025-38058)

Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-05-12 12:04
VLAI?
Title
__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock
Summary
In the Linux kernel, the following vulnerability has been resolved: __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock ... or we risk stealing final mntput from sync umount - raising mnt_count after umount(2) has verified that victim is not busy, but before it has set MNT_SYNC_UMOUNT; in that case __legitimize_mnt() doesn't see that it's safe to quietly undo mnt_count increment and leaves dropping the reference to caller, where it'll be a full-blown mntput(). Check under mount_lock is needed; leaving the current one done before taking that makes no sense - it's nowhere near common enough to bother with.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < 628fb00195ce21a90cf9e4e3d105cd9e58f77b40 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < b89eb56a378b7b2c1176787fc228d0a57172bdd5 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < f6d45fd92f62845cbd1eb5128fd8f0ed7d0c5a42 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < 9b0915e72b3cf52474dcee0b24a2f99d93e604a3 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < d8ece4ced3b051e656c77180df2e69e19e24edc1 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < 8cafd7266fa02e0863bacbf872fe635c0b9725eb (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < b55996939c71a3e1a38f3cdc6a8859797efc9083 (git)
Affected: 48a066e72d970a3e225a9c18690d570c736fc455 , < 250cf3693060a5f803c5f1ddc082bb06b16112a9 (git)
Create a notification for this product.
Linux Linux Affected: 3.13
Unaffected: 0 , < 3.13 (semver)
Unaffected: 5.4.294 , ≤ 5.4.* (semver)
Unaffected: 5.10.238 , ≤ 5.10.* (semver)
Unaffected: 5.15.185 , ≤ 5.15.* (semver)
Unaffected: 6.1.141 , ≤ 6.1.* (semver)
Unaffected: 6.6.93 , ≤ 6.6.* (semver)
Unaffected: 6.12.31 , ≤ 6.12.* (semver)
Unaffected: 6.14.9 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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  }
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.