CVE-2026-53148
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJun 25, 2026
First seenJun 25, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 or later
Patches
- git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35d
- git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caa
- git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141
- git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505
- git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1
- git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d
- git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5
- git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.15 ≤ v < 5.10.259, 5.11 ≤ v < 5.15.210, 5.16 ≤ v < 6.1.176, 6.2 ≤ v < 6.6.143, 6.7 ≤ v < 6.12.94, 6.13 ≤ v < 6.18.36, 6.19 ≤ v < 7.0.13, 7.1 | 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 |
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