CVE-2026-53149 Details
Description
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size __tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block. Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
A vulnerability in the Linux kernel's Thunderbolt driver allows for directory traversal in the root directory of Thunderbolt properties. The issue arises because the function '__tb_property_parse_dir()' fails to verify that the calculated content offset and length do not exceed the allocated block length. This oversight can lead to reading past the intended memory boundaries, potentially causing a buffer overflow. The vulnerability is present in the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. Instructions for downloading the updated kernel can be found on the official Linux kernel website.
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
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964 | kernel.org | Patch |
| https://git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679db | kernel.org | Patch |
| https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb | kernel.org | Patch |
| https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d | kernel.org | Patch |
| https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [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
| |
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 |