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 — ext4: regenerate buddy after block freeing failed if under fc replay
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0029 21.5 —
AFFECTED
Product Versions Fixed
Linux 0983142c5f17a62055ec851372273c3bc77e4788 – —
Linux 5.11 – 5.10.211
TIMELINE
Feb 19 Reserved by Linux
Feb 24 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-26601 (Linux). CVSS 7.8 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
ext4: regenerate buddy after block freeing failed if under fc replay
This mostly reverts commit 6bd97bf273bd ("ext4: remove redundant
mb_regenerate_buddy()") and reintroduces mb_regenerate_buddy(). Based on
code in mb_free_blocks(), fast commit replay can end up marking as free
blocks that are already marked as such. This causes corruption of the
buddy bitmap so we need to regenerate it in that case.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 19, 2024 | Reserved | Reserved by Linux |
| February 24, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-26601 (Linux). CVSS 7.8 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 0983142c5f17a62055ec851372273c3bc77e4788 | — |
| Linux | Linux | — | 5.11 | 5.10.211 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-26601 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.