thunderbolt: Clamp XDomain response data copy to allocation size
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.
CVE-2026-53148
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53148
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "0b334279a82d79fb4723bd4f614305de1ab69caa",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "6021d39ccd979713b39b980286020d8f9a45efd1",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "5db10c8ad8c09f72c847dfeef3d876098257f505",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "05a43157676c243c248d1c6d9dcecbe6eba2f35d",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "fcbd0cdab92838854a5818be7ed8a097164ef6d5",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "906035d5c3784570191d259cbf9a0ac1617852b5",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "322e93448d908434ae5545660fcbe8f5a7a8e141",
"versionType": "git"
}
],
"programFiles": [
"drivers/thunderbolt/xdomain.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/thunderbolt/xdomain.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53148
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28429 · Revision 1
- Added to Heist Feed
- Publisher date