CVE-2026-53150
thunderbolt: Reject zero-length property entries in validator
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.
INFO
Published Date :
June 25, 2026, 9:16 a.m.
Last Modified :
July 6, 2026, 5:45 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Apply the provided security fix to the kernel.
- Validate property entry lengths during processing.
- Ensure proper null-termination logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53150.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53150 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53150
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53150 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53150 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-191 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.210 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 5.10.259 Added Reference Type kernel.org: https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '35d6c9252a152e756768a26dbf216b9dd9dd8e92', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '99d9dbad1463afb510d42c9714f846361d1b726d', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '5f56bc6bddffe8710ba0ba8844023b5a44ca90e4', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': 'ca11e7da4fba4b394f69e16448f4463c44c84de6', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '2e0ddac549ebd713eb9f4a15b6496e3440a17d8b', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': '3b6e68cb97f725385010264a873e14a3921b6b8a', 'versionType': 'git'}, {'status': 'affected', 'version': 'cdae7c07e3e3509eaabc18c1640a55dc5b99c179', 'lessThan': 'cff8eb65d1eafe7793e54b4d0cf6bf831644630b', 'versionType': 'git'}], 'programFiles': ['drivers/thunderbolt/property.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/thunderbolt/property.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b Added Reference https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92 Added Reference https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a Added Reference https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a Added Reference https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4 Added Reference https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d Added Reference https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6 Added Reference https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b