Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — ksmbd: Fix UAF in __close_file_table_ids
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0033 25.6 —
AFFECTED
Product Versions Fixed
Linux 0626e6641f6b467447c81dd7678a69c66f7746cf – —
Linux 5.15 – 6.6.91
TIMELINE
Apr 16 Reserved by Linux
May 20 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-37952 (Linux). CVSS 8.8 → 7.8 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: Fix UAF in __close_file_table_ids
A use-after-free is possible if one thread destroys the file
via __ksmbd_close_fd while another thread holds a reference to
it. The existing checks on fp->refcount are not sufficient to
prevent this.
The fix takes ft->lock around the section which removes the
file from the file table. This prevents two threads acquiring the
same file pointer via __close_file_table_ids, as well as the other
functions which retrieve a file from the IDR and which already use
this same lock.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| May 20, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-37952 (Linux). CVSS 8.8 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 0626e6641f6b467447c81dd7678a69c66f7746cf | — |
| Linux | Linux | — | 5.15 | 6.6.91 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-37952 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.