CVE-2025-38058

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2025-06-18. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

June 18, 2025

Last Modified

August 5, 2026

Advisory Details (10)

Auto-updated Aug 2, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 4328-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
generic Patch Available

[SECURITY] [DLA 4327-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6d45fd92f62845cbd1eb5128fd8f0ed7d0c5a42
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d8ece4ced3b051e656c77180df2e69e19e24edc1
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b89eb56a378b7b2c1176787fc228d0a57172bdd5
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b55996939c71a3e1a38f3cdc6a8859797efc9083
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9b0915e72b3cf52474dcee0b24a2f99d93e604a3
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8cafd7266fa02e0863bacbf872fe635c0b9725eb
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/628fb00195ce21a90cf9e4e3d105cd9e58f77b40
generic

__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/250cf3693060a5f803c5f1ddc082bb06b16112a9

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1054 (5.15.0-1054.58) @ jammy2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1085.85) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1094.92) @ jammy2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1090.80) @ jammy2026-05-21ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1084.82) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1094.79) @ jammy2026-05-21ubuntu
ubuntulinux-tools-kvm-5.15 (5.15.0.1086.82) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1094.103~20.04.1) @ focal2026-05-21ubuntu
ubuntulinux-tools-oracle-edge (6.14.0-1013.13~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1047.50+fips1) @ noble2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-32.32) @ plucky2026-05-21ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-100.100+fips1) @ noble2026-05-21ubuntu
ubuntulinux-tools-ibm-edge (6.8.0-1044.44~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-6.14 (6.14.0-1012.12) @ plucky2026-05-21ubuntu
ubuntulinux-tools-raspi-6.14 (6.14.0-1014.14) @ plucky2026-05-21ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1041.42) @ noble2026-05-21ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1043.44) @ noble2026-05-21ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-32.32~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-100.100.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.14.0-1012.12~24.04.1) @ noble2026-05-21ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1047.50~22.04.2) @ jammy2026-05-21ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-100.100~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-oem-6.14 (6.14.0-1012.12) @ noble2026-05-21ubuntu
ubuntulinux-virtual-6.8 (6.8.0-100.100) @ noble2026-05-21ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1041.42~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1046.52) @ noble2026-05-21ubuntu
ubuntulinux-tools-gke-64k-6.8 (6.8.0-1043.48) @ noble2026-05-21ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1046.49.1) @ noble2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1023.24) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1046.52+fips1) @ noble2026-05-21ubuntu
linuxKernel @ 5.4.294—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (46 versions)5.10.244-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.148-1~deb11u1 (11 versions)6.1.153-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (41 versions)6.1.147-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.32-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.12.32-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 179 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-17 19:29 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
  4. 2026-09-16 05:14 UTCEPSS rescore
  5. 2026-09-13 16:46 UTCEPSS rescore
  6. 2026-09-11 14:52 UTCEPSS rescore
  7. 2026-09-11 09:35 UTCEPSS rescore
  8. 2026-09-10 09:33 UTCEPSS rescore
  9. 2026-09-08 21:59 UTCEPSS rescore
  10. 2026-09-07 16:00 UTCEPSS rescore
  11. 2026-09-07 12:47 UTCOSV refresh
  12. 2026-09-06 13:46 UTCEPSS rescore
  13. 2026-09-04 05:05 UTCEPSS rescore
  14. 2026-09-02 14:11 UTCEPSS rescore
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-09-01 04:38 UTCEPSS rescore
  17. 2026-08-30 19:16 UTCEPSS rescore
  18. 2026-08-30 01:21 UTCEPSS rescore
  19. 2026-08-28 21:40 UTCEPSS rescore
  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-26 14:45 UTCEPSS rescore
  22. 2026-08-25 13:48 UTCEPSS rescore
  23. 2026-08-23 00:18 UTCEPSS rescore
  24. 2026-08-21 23:48 UTCEPSS rescore
  25. 2026-08-20 22:54 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 22:01 UTCOSV refresh
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-18 13:47 UTCEPSS rescore
  5. 2026-08-17 13:46 UTCEPSS rescore
  6. 2026-08-16 14:55 UTCEPSS rescore
  7. 2026-08-16 02:13 UTCEPSS rescore
  8. 2026-08-15 01:29 UTCEPSS rescore
  9. 2026-08-13 21:59 UTCEPSS rescore
  10. 2026-08-12 13:50 UTCEPSS rescore
  11. 2026-08-09 13:46 UTCEPSS rescore
  12. 2026-08-08 16:36 UTCEPSS rescore
  13. 2026-08-07 16:26 UTCEPSS rescore
  14. 2026-08-06 13:46 UTCEPSS rescore
  15. 2026-08-05 13:55 UTCEG score recompute
  16. 2026-08-05 13:55 UTCVendor advisory
  17. 2026-08-05 13:55 UTCGHSA enrichment
  18. 2026-08-04 15:09 UTCEPSS rescore
  19. 2026-08-04 10:37 UTCEPSS rescore
  20. 2026-08-03 10:35 UTCEPSS rescore
  21. 2026-08-02 02:26 UTCEPSS rescore
  22. 2026-08-01 04:15 UTCEPSS rescore
  23. 2026-07-30 16:27 UTCEPSS rescore
  24. 2026-07-30 07:09 UTCEG score recompute
  25. 2026-07-30 07:09 UTCVendor advisory
  26. 2026-07-30 07:09 UTCGHSA enrichment
  27. 2026-07-30 06:24 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  28. 2026-07-30 01:29 UTCEPSS rescore
  29. 2026-07-28 15:35 UTCEPSS rescore
  30. 2026-07-27 18:24 UTCOSV refresh
  31. 2026-07-26 14:54 UTCEPSS rescore
  32. 2026-07-25 14:17 UTCEPSS rescore
  33. 2026-07-25 14:17 UTCEPSS rescore
  34. 2026-07-24 14:17 UTCEPSS rescore
  35. 2026-07-23 02:54 UTCEG score recompute
  36. 2026-07-22 14:07 UTCEPSS rescore
  37. 2026-07-22 14:07 UTCEPSS rescore
  38. 2026-07-21 15:24 UTCEPSS rescore
  39. 2026-07-20 17:07 UTCEPSS rescore
  40. 2026-07-19 14:30 UTCEPSS rescore
  41. 2026-07-19 14:30 UTCEPSS rescore
  42. 2026-07-19 02:28 UTCEPSS rescore
  43. 2026-07-19 02:28 UTCEPSS rescore
  44. 2026-07-16 17:02 UTCEPSS rescore
  45. 2026-07-15 16:57 UTCEPSS rescore
  46. 2026-07-15 16:57 UTCEPSS rescore
  47. 2026-07-15 01:59 UTCEPSS rescore
  48. 2026-07-15 01:59 UTCEPSS rescore
  49. 2026-07-14 13:11 UTCMITRE cvelistV5
  50. 2026-07-13 22:29 UTCEPSS rescore
  51. 2026-07-13 22:29 UTCEPSS rescore
  52. 2026-07-13 06:12 UTCEPSS rescore
  53. 2026-07-12 05:46 UTCEPSS rescore
  54. 2026-07-11 08:27 UTCEPSS rescore
  55. 2026-07-11 08:27 UTCEPSS rescore
  56. 2026-07-10 11:22 UTCOSV refresh
  57. 2026-07-09 19:09 UTCEPSS rescore
  58. 2026-07-09 19:09 UTCEPSS rescore
  59. 2026-07-07 13:45 UTCEPSS rescore
  60. 2026-07-06 16:27 UTCEPSS rescore
  61. 2026-07-06 16:27 UTCEPSS rescore
  62. 2026-07-06 02:23 UTCEPSS rescore
  63. 2026-07-04 06:30 UTCEPSS rescore
  64. 2026-07-01 15:06 UTCEPSS rescore
  65. 2026-07-01 15:06 UTCEPSS rescore
  66. 2026-06-30 23:22 UTCEPSS rescore
  67. 2026-06-30 23:22 UTCEPSS rescore
  68. 2026-06-29 14:06 UTCEPSS rescore
  69. 2026-06-29 14:06 UTCEPSS rescore
  70. 2026-06-28 14:07 UTCEPSS rescore
  71. 2026-06-28 14:07 UTCEPSS rescore
  72. 2026-06-28 04:55 UTCEPSS rescore
  73. 2026-06-28 04:55 UTCEPSS rescore
  74. 2026-06-27 03:08 UTCEPSS rescore
  75. 2026-06-27 03:08 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-38058?
CVE-2025-38058 is a medium vulnerability published on June 18, 2025. In the Linux kernel, the following vulnerability has been resolved: legitimizemnt(): check for MNTSYNCUMOUNT should be under mountlock ... 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 MNTSYNCUMOUNT;…
When was CVE-2025-38058 disclosed?
CVE-2025-38058 was first published in the National Vulnerability Database on June 18, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-38058 actively exploited?
CVE-2025-38058 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.9% of all scored CVEs.
What is the CVSS score of CVE-2025-38058?
CVE-2025-38058 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-38058?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-38058, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-38058

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