7.0
High
CVE-2026-53148 thunderbolt: Clamp XDomain response data copy to allocation size
Description
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Clamp XDomain response data copy to allocation size tb_xdp_properties_request() derives the per-packet copy length from the response header without checking that it fits in the previously allocated data buffer. A malicious peer can set its length field larger than the declared data_length, causing memcpy to write past the kcalloc allocation. Clamp the per-packet copy length so that the cumulative offset never exceeds data_len.
CVSS 3.1 detail
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitable with local access to the machine, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Local
- Attack complexity
- High
- Privileges required
- Low
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.1 | earliest → < 7.1 | 7.1 |
| Linux 7.0 | earliest → < 7.0.13 | 7.0.13 |
| Linux 6.18 | earliest → < 6.18.36 | 6.18.36 |
| Linux 6.12 | earliest → < 6.12.94 | 6.12.94 |
| Linux 6.6 | earliest → < 6.6.143 | 6.6.143 |
| Linux 6.1 | earliest → < 6.1.176 | 6.1.176 |
| Linux 5.15 | earliest → < 5.15.210 | 5.15.210 |
| Linux 5.10 | earliest → < 5.10.259 | 5.10.259 |
| Linux | 4.15 | No fix stated |
Show the 6 other branches Hide the 6 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published |
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