CVE-2026-53150
Description
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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a, cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 35d6c9252a152e756768a26dbf216b9dd9dd8e92, cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 99d9dbad1463afb510d42c9714f846361d1b726d, cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 5f56bc6bddffe8710ba0ba8844023b5a44ca90e4 … |
| Linux | Linux | — | 4.15, 0 < 4.15, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a
- https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92
- https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d
- https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4
- https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6
- https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b
- https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a
- https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b