IB/mlx4: Fix use-after-free on pkey sysfs registration failure
In the Linux kernel, the following vulnerability has been resolved: IB/mlx4: Fix use-after-free on pkey sysfs registration failure register_pkey_tree() ignores errors from register_one_pkey_tree() and continues registering the remaining slaves. The per-slave error path has already released the pkey parent kobjects, but their pointers remain stored in the device. A later device cleanup therefore passes the stale pointers to kobject_put(), causing a use-after-free. Clear the parent pointers after releasing a failed slave tree and skip unregistered trees during device cleanup. This preserves the existing best-effort registration behavior while preventing a second cleanup of the failed tree.
CVE-2026-98217
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-2026-98217
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": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "791471421d848ce13e84f4b21c9e19973d471c4e",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "734f066933484f6c7cedea0312763249beed5845",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "a07bee32127d7c4cd3b1bb9a088e21d0c93634c9",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "cf20d7476754c00eec04ae23d3e929de33ce0345",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "0c3482e965b18bc242e54e899d1c4d391ca8e5e3",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "ffb80872617b5f9b3dd1536ec2909029fa66f228",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "ced1186fea7c77e16681c7ef4802897885989c3b",
"versionType": "git"
},
{
"status": "affected",
"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
"lessThan": "1af874e9f4ce22ccf8b10ab5462f32c70d3be21a",
"versionType": "git"
}
],
"programFiles": [
"drivers/infiniband/hw/mlx4/sysfs.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/hw/mlx4/sysfs.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98217
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38296 · Revision 1
- Added to Heist Feed
- Publisher date