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.

https://git.kernel.org/stable/c/0b189b2204f1a2612dc68f8d139fb5b80539e710

https://git.kernel.org/stable/c/16ca053c2be5f4f3044dccf7fc19237dc820d394

https://git.kernel.org/stable/c/34684a04777358b2b40ac729e54c8e45359e46b3

https://git.kernel.org/stable/c/8f72fd25a57a457866350359ddd27a43caa62c95

https://git.kernel.org/stable/c/d2afc7ecee476f9251dd87444f7fb6a424410922

https://git.kernel.org/stable/c/d5b45bad75cd2730b8452aed4d3b20a2b2a12576

https://git.kernel.org/stable/c/d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf

https://git.kernel.org/stable/c/f3461b84a4865d9b5e70fbb71da72ae044a3bcd2

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