CVE-2026-53150 Details
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.
A vulnerability in the Linux kernel's Thunderbolt driver allows for improper validation of property entries, specifically those with a length of zero. The validator function 'tb_property_entry_valid()' incorrectly accepts zero-length entries for DIRECTORY, DATA, and TEXT types. This oversight can lead to a null-termination logic underflow, where a zero-length TEXT entry is validated but causes a write to an invalid memory offset. The issue arises because the XDomain property protocol does not support zero-length entries, yet the validator fails to reject them, creating a potential vulnerability.
Users can update to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit that resolves this issue is 'cff8eb65d1eafe7793e54b4d0cf6bf831644630b', which is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b | kernel.org | Patch |
| https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92 | kernel.org | Patch |
| https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a | kernel.org | Patch |
| https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a | kernel.org | Patch |
| https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d | kernel.org | Patch |
| https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-191 | Integer Underflow (Wrap or Wraparound) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.15, < 5.10.259 >= 5.11, < 5.15.210 >= 5.16, < 6.1.176 >= 6.2, < 6.6.143 >= 6.7, < 6.12.94 >= 6.13, < 6.18.36 >= 6.19, < 7.0.13 7.1 rc1 7.1 rc2 7.1 rc3 7.1 rc4 7.1 rc5 7.1 rc6 7.1 rc7 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 6, 2026 | Initial Analysis | [email protected] |
| Jun 25, 2026 | New CVE Received | kernel.org |