thunderbolt: Limit XDomain response copy to actual frame size
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Limit XDomain response copy to actual frame size tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions. Use the minimum of frame size and expected response size for the copy length.
CVE-2026-53146
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-2026-53146
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": "c55da494dfb445fb28df3a9d293c2be6a299cd01",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "7720654b4842bcdfeb64bc002f6186041849e1e7",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "033dfa63bf6be2653441a1dccae4a8313a91bb9d",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "fc261397295b8ad0654cec747b0ec25ea0011995",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "b5daa920f44cb582272fc9bfaeb67408776cbaef",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4",
"versionType": "git"
},
{
"status": "affected",
"version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
"lessThan": "4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb",
"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-2026-53146
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40760 · Revision 1
- Added to Heist Feed
- Publisher date