CVE-2026-53149
thunderbolt: Bound root directory content to block size
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory 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
References (9)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- HIGH
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