thunderbolt: Clamp XDomain response data copy to allocation size

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Summary

CVECVE-2026-53148
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:32 UTC
Updated2026-07-15 01:16:29 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001400000 probability, percentile 0.037230000 (date 2026-07-04)

Problem Types: CWE-787 | CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPCVSS7HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 0b334279a82d79fb4723bd4f614305de1ab69caa git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 6021d39ccd979713b39b980286020d8f9a45efd1 git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 5db10c8ad8c09f72c847dfeef3d876098257f505 git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 05a43157676c243c248d1c6d9dcecbe6eba2f35d git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 fcbd0cdab92838854a5818be7ed8a097164ef6d5 git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 906035d5c3784570191d259cbf9a0ac1617852b5 git Not specified
CNA Linux Linux affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 322e93448d908434ae5545660fcbe8f5a7a8e141 git Not specified
CNA Linux Linux affected 4.15 Not specified
CNA Linux Linux unaffected 4.15 semver Not specified
CNA Linux Linux unaffected 5.10.259 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.210 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.176 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.143 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.94 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified
ADP Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 Not specified Not specified

References

ReferenceSourceLinkTags
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com Third Party Advisory
git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
access.redhat.com/security/cve/CVE-2026-53148 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com Third Party Advisory
git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-06-25T00:00:00.000ZReported to Red Hat.
ADP2026-06-25T00:00:00.000ZMade public.
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