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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux172db5f91d5f7b91670c68a7547798b0b5374158 < 1c4e524811918600683b1ea87a5e0fc2db64fa9baffected
LinuxLinux172db5f91d5f7b91670c68a7547798b0b5374158 < 996422e3230e41468f652d754fefd1bdbcd4604eaffected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux6.9.9 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References