In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Check for port partner validity before consuming it typec_register_partner() does not guarantee partner registration to always succeed. In the event of failure, port->partner is set to the error value or NULL. Given that port->partner validity is not checked, this results in the following crash: Unable to handle kernel NULL pointer dereference at virtual address xx pc : run_state_machine+0x1bc8/0x1c08 lr : run_state_machine+0x1b90/0x1c08 .. Call trace: run_state_machine+0x1bc8/0x1c08 tcpm_state_machine_work+0x94/0xe4 kthread_worker_fn+0x118/0x328 kthread+0x1d0/0x23c ret_from_fork+0x10/0x20 To prevent the crash, check for port->partner validity before derefencing it in all the call sites.
History

Thu, 17 Oct 2024 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 17 Oct 2024 14:00:00 +0000


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:28:59.113Z

Updated: 2024-11-05T09:27:37.212Z

Reserved: 2024-05-30T15:25:07.065Z

Link: CVE-2024-36893

cve-icon Vulnrichment

Updated: 2024-08-02T03:43:50.062Z

cve-icon NVD

Status : Modified

Published: 2024-05-30T16:15:12.773

Modified: 2024-11-21T09:22:45.080

Link: CVE-2024-36893

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36893 - Bugzilla