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 — net: kcm: Fix race condition in kcm_unattach()
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0011 1.7 —
AFFECTED
Product Versions Fixed
Linux ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 – —
Linux 4.6 – 6.12.43
TIMELINE
Apr 16 Reserved by Linux
Sep 4 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-38717 (Linux). CVSS 7.8 → 4.7 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
net: kcm: Fix race condition in kcm_unattach()
syzbot found a race condition when kcm_unattach(psock)
and kcm_release(kcm) are executed at the same time.
kcm_unattach() is missing a check of the flag
kcm->tx_stopped before calling queue_work().
If the kcm has a reserved psock, kcm_unattach() might get executed
between cancel_work_sync() and unreserve_psock() in kcm_release(),
requeuing kcm->tx_work right before kcm gets freed in kcm_done().
Remove kcm->tx_stopped and replace it by the less
error-prone disable_work_sync().
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| September 4, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-38717 (Linux). CVSS 7.8 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 | — |
| Linux | Linux | — | 4.6 | 6.12.43 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-38717 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.