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 — NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0034 27.0 —
AFFECTED
Product Versions Fixed
Linux 8acc3e228e1c90bd410f73597a4549e0409f22d6 – —
Linux 5.19 – 5.10.240
TIMELINE
Apr 16 Reserved by Linux
Jul 25 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-38393 (Linux). CVSS 7.5 → 4.7 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN
We found a few different systems hung up in writeback waiting on the same
page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in
pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count
was zero.
It seems most likely that this is another race between the waiter and waker
similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task").
Fix it up by applying the advised barrier.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| July 25, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-38393 (Linux). CVSS 7.5 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 8acc3e228e1c90bd410f73597a4549e0409f22d6 | — |
| Linux | Linux | — | 5.19 | 5.10.240 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-38393 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.