In the Linux kernel, the following vulnerability has been resolved: leds: trigger: netdev: Fix kernel panic on interface rename trig notify Commit d5e01266e7f5 ("leds: trigger: netdev: add additional specific link speed mode") in the various changes, reworked the way to set the LINKUP mode in commit cee4bd16c319 ("leds: trigger: netdev: Recheck NETDEV_LED_MODE_LINKUP on dev rename") and moved it to a generic function. This changed the logic where, in the previous implementation the dev from the trigger event was used to check if the carrier was ok, but in the new implementation with the generic function, the dev in trigger_data is used instead. This is problematic and cause a possible kernel panic due to the fact that the dev in the trigger_data still reference the old one as the new one (passed from the trigger event) still has to be hold and saved in the trigger_data struct (done in the NETDEV_REGISTER case). On calling of get_device_state(), an invalid net_dev is used and this cause a kernel panic. To handle this correctly, move the call to get_device_state() after the new net_dev is correctly set in trigger_data (in the NETDEV_REGISTER case) and correctly parse the new dev.
History

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-01T13:00:24.506Z

Updated: 2025-05-04T09:03:24.728Z

Reserved: 2024-02-19T14:20:24.215Z

Link: CVE-2024-27063

cve-icon Vulnrichment

Updated: 2024-08-02T00:21:05.939Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-01T13:15:50.707

Modified: 2024-11-21T09:03:46.987

Link: CVE-2024-27063

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-01T00:00:00Z

Links: CVE-2024-27063 - Bugzilla