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CVE Vulnerability Details :
CVE-2026-43228
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-06 May, 2026 | 11:28
Updated At-07 May, 2026 | 17:14
Rejected At-
▼CVE Numbering Authority (CNA)
hfs: Replace BUG_ON with error handling for CNID count checks

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>

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/hfs/dir.c
  • fs/hfs/hfs_fs.h
  • fs/hfs/inode.c
  • fs/hfs/mdb.c
  • fs/hfs/super.c
Default Status
unaffected
Versions
Affected
  • From a06ec283e125e334155fe13005c76c9f484ce759 before b6536c1ced315fa645576d3a39c6e07f2a472962 (git)
  • From a06ec283e125e334155fe13005c76c9f484ce759 before b226804532a875c10276168dc55ce752944096bd (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/hfs/dir.c
  • fs/hfs/hfs_fs.h
  • fs/hfs/inode.c
  • fs/hfs/mdb.c
  • fs/hfs/super.c
Default Status
affected
Versions
Affected
  • 6.18
Unaffected
  • From 0 before 6.18 (semver)
  • From 6.19.6 through 6.19.* (semver)
  • From 7.0 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962
N/A
https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bd
N/A
Hyperlink: https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bd
Resource: N/A
Details not found