CVE-2026-53149

medium

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.

References

https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166

https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528

https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d

https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4

https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb

https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115

https://git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679db

https://git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964

Details

Source: Mitre, NVD

Published: 2026-06-25

Updated: 2026-06-25

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00176