CVE-2026-98217
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/0c3482e965b18bc242e54e899d1c4d391ca8e5e3
https://git.kernel.org/stable/c/1af874e9f4ce22ccf8b10ab5462f32c70d3be21a
https://git.kernel.org/stable/c/734f066933484f6c7cedea0312763249beed5845
https://git.kernel.org/stable/c/791471421d848ce13e84f4b21c9e19973d471c4e
https://git.kernel.org/stable/c/a07bee32127d7c4cd3b1bb9a088e21d0c93634c9
https://git.kernel.org/stable/c/ced1186fea7c77e16681c7ef4802897885989c3b
https://git.kernel.org/stable/c/cf20d7476754c00eec04ae23d3e929de33ce0345
https://git.kernel.org/stable/c/ffb80872617b5f9b3dd1536ec2909029fa66f228