Medium severity5.5NVD Advisory· Published May 6, 2026· Updated Jun 17, 2026
CVE-2026-43228
CVE-2026-43228
Description
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 <[email protected]>
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- osv-coords8 versionspkg:apk/chainguard/linux-azure-6.18pkg:apk/chainguard/linux-gcp-6.18pkg:apk/chainguard/linux-gcp-6.18-bootcpkg:apk/chainguard/linux-gcp-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-6.18pkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:apk/chainguard/linux-qemu-melangepkg:linux/kernel
< 6.18.24-r1+ 7 more
- (no CPE)range: < 6.18.24-r1
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 6.18.38-r2
- (no CPE)range: < 0
- (no CPE)range: < 6.18.38-r2
- (no CPE)range: < 6.18.28-r0
- (no CPE)range: >= 6.18.0, < 6.19.6
Patches
Vulnerability mechanics
References
2News mentions
1- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026