CVE-2026-53149

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.

Score

CVSS 3.1 7.1 High

Status

Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-06-25

Last modified

2026-10-15

Weaknesses

CWE-125

Affected products

• Linux Kernel (Linux)
• Simatic S7-1500 Tm Mfp - Gnulinux Subsystem (Siemens)

References

• https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb
• https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528
• https://git.kernel.org/stable/c/1912be23daf4afc8d24ce916021ab68ca4c679db
• https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115
• https://git.kernel.org/stable/c/0a32040a48db8cf35de48b85d6115df5623e4964
• https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4
• https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166
• https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d
• https://cert-portal.siemens.com/productcert/html/ssa-784472.html