i3c: mipi-i3c-hci: Fix race in DMA ring dequeue
In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself. When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes incomplete transfers, and then restarts the ring. If another timeout triggers a parallel call into the same function, the two instances may interfere with each other - stopping or restarting the ring at unexpected times. Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to itself.
CVE-2026-43353
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-2026-43353
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": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
"lessThan": "73bb6b15f1fd71479ed12b314876f3ce5935b80a",
"versionType": "git"
},
{
"status": "affected",
"version": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
"lessThan": "16061383a9def977e4be908c7dcede9a8a4227fd",
"versionType": "git"
},
{
"status": "affected",
"version": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
"lessThan": "b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e",
"versionType": "git"
},
{
"status": "affected",
"version": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
"lessThan": "4faa1e9c67a2229f6749190aedaf88ce0391efd2",
"versionType": "git"
},
{
"status": "affected",
"version": "9ad9a52cce2828d932ae9495181e3d6414f72c07",
"lessThan": "1dca8aee80eea76d2aae21265de5dd64f6ba0f09",
"versionType": "git"
}
],
"programFiles": [
"drivers/i3c/master/mipi-i3c-hci/core.c",
"drivers/i3c/master/mipi-i3c-hci/dma.c",
"drivers/i3c/master/mipi-i3c-hci/hci.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.19",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.9",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/i3c/master/mipi-i3c-hci/core.c",
"drivers/i3c/master/mipi-i3c-hci/dma.c",
"drivers/i3c/master/mipi-i3c-hci/hci.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-43353
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46294 · Revision 1
- Added to Heist Feed
- Publisher date