Red Hat: CVE-2024-42107: kernel: ice: Don't process extts if PTP is disabled (Multiple Advisories)

Red Hat: CVE-2024-42107: kernel: ice: Don't process extts if PTP is disabled (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/30/2024

Created

09/14/2024

Added

09/13/2024

Modified

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ice: Don't process extts if PTP is disabled The ice_ptp_extts_event() function can race with ice_ptp_release() and result in a NULL pointer dereference which leads to a kernel panic. Panic occurs because the ice_ptp_extts_event() function calls ptp_clock_event() with a NULL pointer. The ice driver has already released the PTP clock by the time the interrupt for the next external timestamp event occurs. To fix this, modify the ice_ptp_extts_event() function to check the PTP state and bail early if PTP is not ready.

Solution(s)

• redhat-upgrade-kernel
• redhat-upgrade-kernel-rt

References

• CVE-2024-42107
• RHSA-2024:5672
• RHSA-2024:5673