CVE-2026-53149

thunderbolt: Bound root directory content to block size

State: Published
Severity: Not scored
Published: Jun 25, 2026
Updated: Oct 15, 2026
Reserved: Jun 9, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 5c7657d38d07268124782f03519f07c22a5814fbAffected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before b212bc161d8a9937b42153723a4a3f2f74fab528Affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 1912be23daf4afc8d24ce916021ab68ca4c679dbAffected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 4d0b1524caadb04c10a71f3f88692c63dcb39115Affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 0a32040a48db8cf35de48b85d6115df5623e4964Affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 60ba6217460792356a238299edd675d91d46bab4Affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before cbeb68cbaa0a6f979ef428a7f2d0268c082ba166Affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 65423079c7420e3dbf9a7aa345c243a3f5752e5dAffected
LinuxLinux	4.15Affected before 4.15Not affected 5.10.259 through 5.10.Not affected 5.15.210 through 5.15.Not affected 6.1.176 through 6.1.Not affected 6.6.143 through 6.6.Not affected 6.12.94 through 6.12.Not affected 6.18.36 through 6.18.Not affected 7.0.13 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 5c7657d38d07268124782f03519f07c22a5814fbAffected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before b212bc161d8a9937b42153723a4a3f2f74fab528Affected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 1912be23daf4afc8d24ce916021ab68ca4c679dbAffected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 4d0b1524caadb04c10a71f3f88692c63dcb39115Affected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 0a32040a48db8cf35de48b85d6115df5623e4964Affected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 60ba6217460792356a238299edd675d91d46bab4Affected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before cbeb68cbaa0a6f979ef428a7f2d0268c082ba166Affected
cdae7c07e3e3509eaabc18c1640a55dc5b99c179 to before 65423079c7420e3dbf9a7aa345c243a3f5752e5dAffected

LinuxLinux

4.15Affected
before 4.15Not affected
5.10.259 through 5.10.*Not affected
5.15.210 through 5.15.*Not affected
6.1.176 through 6.1.*Not affected
6.6.143 through 6.6.*Not affected
6.12.94 through 6.12.*Not affected
6.18.36 through 6.18.*Not affected
7.0.13 through 7.0.*Not affected
7.1 and laterNot affected

References

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