CVE-2026-53150
Full vulnerability record from the local CVENow database.
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-25 09:16:32.367000
Last modified
2026-11-06 17:18:11.383000
View original CVE JSON
{
"id": "CVE-2026-53150",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-06-25T09:16:32.367",
"lastModified": "2026-11-06T17:18:11.383",
"vulnStatus": "Modified",
"cveTags": [],
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Reject zero-length property entries in validator\n\ntb_property_entry_valid() accepts entries with length == 0 for\nDIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes\nvalidation but causes an underflow in the null-termination logic:\n\n property->value.text[property->length * 4 - 1] = '\\0';\n\nWhen property->length is 0 this writes to offset -1 relative to\nthe allocation.\n\nReject zero-length entries early in the validator since they have no\nvalid representation in the XDomain property protocol."
}
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