CVE - CVE-2024-27063

CVE-ID
CVE-2024-27063	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/10f2af1af8ab8a7064f193446abd5579d3def7e3 URL:https://git.kernel.org/stable/c/10f2af1af8ab8a7064f193446abd5579d3def7e3 MISC:https://git.kernel.org/stable/c/3f360227cb46edb2cd2494128e1e06ed5768a62e URL:https://git.kernel.org/stable/c/3f360227cb46edb2cd2494128e1e06ed5768a62e MISC:https://git.kernel.org/stable/c/415798bc07dd1c1ae3a656aa026580816e0b9fe8 URL:https://git.kernel.org/stable/c/415798bc07dd1c1ae3a656aa026580816e0b9fe8 MISC:https://git.kernel.org/stable/c/acd025c7a7d151261533016a6ca2d38f2de04e87 URL:https://git.kernel.org/stable/c/acd025c7a7d151261533016a6ca2d38f2de04e87
Assigning CNA
kernel.org
Date Record Created
20240219	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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