CVE-2024-42107

Summary

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.

Impact & exploitability

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/1c4e524811918600683b1ea87a5e0fc2db64fa9b ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/1c4e524811918600683b1ea87a5e0fc2db64fa9bPatch
• https://git.kernel.org/stable/c/996422e3230e41468f652d754fefd1bdbcd4604ePatch
• https://git.kernel.org/stable/c/2ab26aeec3de0a677e02d6bc4dc85d49cd1ec4ac
• https://git.kernel.org/stable/c/9aa83a5eb013f8aff20e701aa25ba6b0eaad0b65