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CVE-2026-53149

thunderbolt: Bound root directory content to block size

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 5c7657d38d07268124782f03519f07c22a5814fb; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in b212bc161d8a9937b42153723a4a3f2f74fab528; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 1912be23daf4afc8d24ce916021ab68ca4c679db; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 4d0b1524caadb04c10a71f3f88692c63dcb39115; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 0a32040a48db8cf35de48b85d6115df5623e4964; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 60ba6217460792356a238299edd675d91d46bab4; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in cbeb68cbaa0a6f979ef428a7f2d0268c082ba166; From cdae7c07e3e3509eaabc18c1640a55dc5b99c179 · fixed in 65423079c7420e3dbf9a7aa345c243a3f5752e5d

  • Linux Linux

    4.15

  • KernelLinux

    From 4.15.0 · fixed in 5.10.259; From 5.11.0 · fixed in 5.15.210; From 5.16.0 · fixed in 6.1.176; From 6.2.0 · fixed in 6.6.143; From 6.7.0 · fixed in 6.12.94; From 6.13.0 · fixed in 6.18.36; From 6.19.0 · fixed in 7.0.13

References 8

git.kernel.org