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CVE-2026-53149

thunderbolt: Bound root directory content to block size PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 5c7657d38d07268124782f03519f07c22a5814fb; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before b212bc161d8a9937b42153723a4a3f2f74fab528; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 1912be23daf4afc8d24ce916021ab68ca4c679db; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 4d0b1524caadb04c10a71f3f88692c63dcb39115; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 0a32040a48db8cf35de48b85d6115df5623e4964; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 60ba6217460792356a238299edd675d91d46bab4; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before cbeb68cbaa0a6f979ef428a7f2d0268c082ba166; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 65423079c7420e3dbf9a7aa345c243a3f5752e5d
Linux / Linuxaffected 4.15; unaffected 0 before 4.15; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.