iommu/msm: Unwind probe state on registration failure
In the Linux kernel, the following vulnerability has been resolved: iommu/msm: Unwind probe state on registration failure msm_iommu_probe() adds its devm-managed IOMMU object to qcom_iommu_devices before adding the IOMMU sysfs device and registering it with the IOMMU core. If iommu_device_sysfs_add() fails, probe returns with the object still on qcom_iommu_devices. The driver core then releases the devm allocation, leaving a dangling list entry that later list walks may dereference. If iommu_device_register() fails, the same dangling list entry remains and the sysfs device is left registered as well. Unwind the sysfs device and global list entry in reverse setup order on the corresponding failure paths.
CVE-2026-89452
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-2026-89452
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": "42df43b36163ed7d0ab13992e411093252903273",
"lessThan": "6a1ae472113762f794682229a0f233f1ee0f69a4",
"versionType": "git"
},
{
"status": "affected",
"version": "42df43b36163ed7d0ab13992e411093252903273",
"lessThan": "51e37f9179387b6e3fa64a3d3b4fece1a38b3a02",
"versionType": "git"
},
{
"status": "affected",
"version": "42df43b36163ed7d0ab13992e411093252903273",
"lessThan": "f532401be9312ecd166f616bb74a65b0b4c150fa",
"versionType": "git"
},
{
"status": "affected",
"version": "42df43b36163ed7d0ab13992e411093252903273",
"lessThan": "7f7074a886c4a93e3d12076ce60a510a1ebe400c",
"versionType": "git"
},
{
"status": "affected",
"version": "42df43b36163ed7d0ab13992e411093252903273",
"lessThan": "535a200220ca2c83bc8bf54bd2cbe045d6ee70c4",
"versionType": "git"
}
],
"programFiles": [
"drivers/iommu/msm_iommu.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iommu/msm_iommu.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89452
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46660 · Revision 1
- Added to Heist Feed
- Publisher date