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CVE-2026-43228

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 Koolst
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:da64a7d5bc6e7400e83915ecfebe35ff09b271fa06d31871152aac5a9e864ceb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/hfs/dir.c","fs/hfs/hfs_fs.h","fs/hfs/inode.c","fs/hfs/mdb.c","fs/hfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/hfs/dir.c","fs/hfs/hfs_fs.h","fs/hfs/inode.c","fs/hfs/mdb.c","fs/hfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b6536c1ced315fa645576d3a39c6e07f2a472962","status":"affected","version":"a06ec283e125e334155fe13005c76c9f484ce759","versionType":"git"},{"lessThan":"b226804532a875c10276168dc55ce752944096bd","status":"affected","version":"a06ec283e125e334155fe13005c76c9f484ce759","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/hfs/dir.c","fs/hfs/hfs_fs.h","fs/hfs/inode.c","fs/hfs/mdb.c","fs/hfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/hfs/dir.c","fs/hfs/hfs_fs.h","fs/hfs/inode.c","fs/hfs/mdb.c","fs/hfs/super.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b6536c1ced315fa645576d3a39c6e07f2a472962","status":"affected","version":"a06ec283e125e334155fe13005c76c9f484ce759","versionType":"git"},{"lessThan":"b226804532a875c10276168dc55ce752944096bd","status":"affected","version":"a06ec283e125e334155fe13005c76c9f484ce759","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:effa3df9290961d0a6df933aad3e8307c79354673396905e700a10187c1becc4 · sha256:2d3da90dada6af39… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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