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CVE-2026-98217

Unknown

Last modified

CVE-2026-98217 is a vulnerability of currently unknown severity. 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.

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < 791471421d848ce13e84f4b21c9e19973d471c4e; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < 734f066933484f6c7cedea0312763249beed5845; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < a07bee32127d7c4cd3b1bb9a088e21d0c93634c9; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < cf20d7476754c00eec04ae23d3e929de33ce0345; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < 0c3482e965b18bc242e54e899d1c4d391ca8e5e3; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < ffb80872617b5f9b3dd1536ec2909029fa66f228; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < ced1186fea7c77e16681c7ef4802897885989c3b; >= c1e7e466120b80ce49e91af0c9da1ce6dee4844a, < 1af874e9f4ce22ccf8b10ab5462f32c70d3be21a
LinuxLinux3.7

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98217?
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.
How severe is CVE-2026-98217?
Severity scoring for CVE-2026-98217 is pending analysis.
How do I fix CVE-2026-98217?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST