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

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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
09/13/2024

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

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