PT-2026-52245 · Linux · Linux

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-53149

NVD

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.

Related Identifiers

CVE-2026-53149

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-53149 · Security Note
• https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115 · Note
• https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb · Note
• https://git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964 · Note
• https://git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679db · Note
• https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4 · Note
• https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528 · Note
• https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166 · Note
• https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d · Note