In the Linux kernel, the following vulnerability has been resolved:

thunderbolt: Reject zero-length property entries in validator

tb_property_entry_valid() accepts entries with length == 0 for
DIRECTORY, DATA, and TEXT types.  A zero-length TEXT entry passes
validation but causes an underflow in the null-termination logic:

  property->value.text[property->length * 4 - 1] = '\0';

When property->length is 0 this writes to offset -1 relative to
the allocation.

Reject zero-length entries early in the validator since they have no
valid representation in the XDomain property protocol.

https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b

https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92

https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a

https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a

https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4

https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d

https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6

https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b

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