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 — erofs: fix invalid algorithm for encoded extents
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0013 2.6 —
AFFECTED
Product Versions Fixed
Linux 1d191b4ca51d73699cb127386b95ac152af2b930 – —
Linux 6.15 – 6.16.8
TIMELINE
Apr 16 Reserved by Linux
Oct 1 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-39924 (Linux). CVSS 7.8 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix invalid algorithm for encoded extents
The current algorithm sanity checks do not properly apply to new
encoded extents.
Unify the algorithm check with Z_EROFS_COMPRESSION(_RUNTIME)_MAX
and ensure consistency with sbi->available_compr_algs.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| October 1, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-39924 (Linux). CVSS 7.8 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 1d191b4ca51d73699cb127386b95ac152af2b930 | — |
| Linux | Linux | — | 6.15 | 6.16.8 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-39924 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.