CVE-2026-53148 : vulnérabilité élevée (CVSS 7.8)

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.

Sévérité

Élevée (CVSS 7.8)

Vecteur CVSS

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation active

Non signalée par la CISA

Publication

25 juin 2026

Dernière mise à jour

15 juil. 2026

• Fiche CVE-2026-53148 sur le NVD (NIST)
• git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f…
• git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69…
• git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e…
• git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f…
• git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45e…
• git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8…
• git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac161785…
• git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef…
• access.redhat.com/security/cve/CVE-2026-53148
• bugzilla.redhat.com/show_bug.cgi
• security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.json