Home/CVE/In the Linux kernel, the following vulnerability has been resolved: hfs: Replace BUG_ON with error handling for CNID co
CVE

CVE-2026-43228

In the Linux kernel, the following vulnerability has been resolved: hfs: Replace BUG_ON with error handling for CNID co

In the Linux kernel, the following vulnerability has been resolved: hfs: Replace BUG_ON with error handling for CNID count checks In a06ec283e125 next_id, folder_count, and file_count in the super block info were expanded to 64 bits, and BUG_ONs were added to detect overflow. This triggered an error reported by syzbot: if the MDB is corrupted, the BUG_ON is triggered. This patch replaces this mechanism with proper error handling and resolves the syzbot reported bug.

Singed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>.

MEDIUM · CVSS 5.5 EPSS 0.00014
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-617Reachable Assertion
▤

Affected Products & Versions

1
linux kernel>= 6.18 and < 6.19.6
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2026 · 12:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
msrcCVE-2026-43228
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bdPatch
https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962Patch
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