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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-64360

hfs/hfsplus: zero-initialize buffer in hfs_bnode_read

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: zero-initialize buffer in hfs_bnode_read hfs_bnode_read() can return early without writing to the output buffer when is_bnode_offset_valid() fails or when check_and_correct_requested_ length() corrects the length to zero. Callers such as hfs_bnode_read_ u16() and hfs_bnode_read_u8() pass stack-allocated buffers and use the result unconditionally, leading to KMSAN uninit-value reports. Rather than initializing at each individual call site, zero the buffer at the start of hfs_bnode_read() before any validation checks. This ensures all callers in both hfs and hfsplus get a deterministic zero value regardless of which early-return path is taken.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 67ecc81f6492275c9c54280532f558483c99c90e to < 34684a04777358b2b40ac729e54c8e45359e46b3affected
  • a1a60e79502279f996e55052f50cc14919020475 to < 0b189b2204f1a2612dc68f8d139fb5b80539e710affected
  • fe2891a9c43ab87d1a210d61e6438ca6936e2f62 to < 8f72fd25a57a457866350359ddd27a43caa62c95affected
  • 384a66b89f9540a9a8cb0f48807697dfabaece4c to < 16ca053c2be5f4f3044dccf7fc19237dc820d394affected
  • efc095b35b23297e419c2ab4fc1ed1a8f0781a29 to < d2afc7ecee476f9251dd87444f7fb6a424410922affected
  • a431930c9bac518bf99d6b1da526a7f37ddee8d8 to < f3461b84a4865d9b5e70fbb71da72ae044a3bcd2affected
  • a431930c9bac518bf99d6b1da526a7f37ddee8d8 to < d5b45bad75cd2730b8452aed4d3b20a2b2a12576affected
  • a431930c9bac518bf99d6b1da526a7f37ddee8d8 to < d67aadee19ffdf3cc8520c5a4f4d5b2916d30bafaffected
  • e7d2dc2421e821e4045775e6dc226378328de6f6affected
  • fc7f732984ec91f30be3e574e0644066d07f2b78affected
  • eec522fd0d28106b14a59ab2d658605febe4a3bbaffected
  • 5.10.241 to < 5.10.261affected
  • 5.15.190 to < 5.15.212affected
  • 6.1.149 to < 6.1.178affected
  • 6.6.103 to < 6.6.145affected
  • 6.12.43 to < 6.12.96affected
  • 5.4.297 to < 5.5affected
  • 6.15.11 to < 6.16affected
  • 6.16.2 to < 6.17affected

Linux Linux

Default version status: affected

  • 6.17affected
  • 0 to < 6.17unaffected
  • 5.10.261 to ≤ 5.10.*unaffected
  • 5.15.212 to ≤ 5.15.*unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.96 to ≤ 6.12.*unaffected
  • 6.18.39 to ≤ 6.18.*unaffected
  • 7.1.4 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References