Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.15, < 5.10.259 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35dPatch
- https://git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caaPatch
- https://git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141Patch
- https://git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505Patch
- https://git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1Patch
- https://git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0dPatch
- https://git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5Patch
- https://git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5Patch
- https://access.redhat.com/security/cve/CVE-2026-53148Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492756Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.jsonThird Party Advisory
FAQ
What is CVE-2026-53148?
CVE-2026-53148 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 fr...
How severe is CVE-2026-53148?
CVE-2026-53148 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53148?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.