In the Linux kernel, the following vulnerability has been resolved: spi: lpspi: Avoid potential use-after-free in probe() fsl_lpspi_probe() is allocating/disposing memory manually with spi_alloc_host()/spi_alloc_target(), but uses devm_spi_register_controller(). In case of error after the latter call the memory will be explicitly freed in the probe function by spi_controller_put() call, but used afterwards by "devm" management outside probe() (spi_unregister_controller() <- devm_spi_unregister() below). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 ... Call trace: kernfs_find_ns kernfs_find_and_get_ns sysfs_remove_group sysfs_remove_groups device_remove_attrs device_del spi_unregister_controller devm_spi_unregister release_nodes devres_release_all really_probe driver_probe_device __device_attach_driver bus_for_each_drv __device_attach device_initial_probe bus_probe_device deferred_probe_work_func process_one_work worker_thread kthread ret_from_fork
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-04-17T10:27:28.163Z

Updated: 2024-11-05T09:17:14.433Z

Reserved: 2024-02-19T14:20:24.184Z

Link: CVE-2024-26866

cve-icon Vulnrichment

Updated: 2024-05-28T19:57:45.986Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-04-17T11:15:09.253

Modified: 2024-04-17T12:48:07.510

Link: CVE-2024-26866

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-04-17T00:00:00Z

Links: CVE-2024-26866 - Bugzilla