Answer in brief
CVE-2026-98217 records a Unknown severity vulnerability in IB/mlx4: Fix use-after-free on pkey sysfs registration failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <791471421d848ce13e84f4b21c9e19973d471c4e || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <734f066933484f6c7cedea0312763249beed5845 || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <a07bee32127d7c4cd3b1bb9a088e21d0c93634c9 || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <cf20d7476754c00eec04ae23d3e929de33ce0345 || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <0c3482e965b18bc242e54e899d1c4d391ca8e5e3 || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <ffb80872617b5f9b3dd1536ec2909029fa66f228 || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <ced1186fea7c77e16681c7ef4802897885989c3b || >=c1e7e466120b80ce49e91af0c9da1ce6dee4844a <1af874e9f4ce22ccf8b10ab5462f32c70d3be21a | 791471421d848ce13e84f4b21c9e19973d471c4e, 734f066933484f6c7cedea0312763249beed5845, a07bee32127d7c4cd3b1bb9a088e21d0c93634c9, cf20d7476754c00eec04ae23d3e929de33ce0345, 0c3482e965b18bc242e54e899d1c4d391ca8e5e3, ffb80872617b5f9b3dd1536ec2909029fa66f228, ced1186fea7c77e16681c7ef4802897885989c3b, 1af874e9f4ce22ccf8b10ab5462f32c70d3be21a |
| Linux/Linuxgeneric | 3.7 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.