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.
Metrics
CVSS 3.1 4.7/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 172db5f91d5f7b91670c68a7547798b0b5374158, < 2ab26aeec3de0a677e02d6bc4dc85d49cd1ec4ac; >= 172db5f91d5f7b91670c68a7547798b0b5374158, < 9aa83a5eb013f8aff20e701aa25ba6b0eaad0b65; >= 172db5f91d5f7b91670c68a7547798b0b5374158, < 1c4e524811918600683b1ea87a5e0fc2db64fa9b; >= 172db5f91d5f7b91670c68a7547798b0b5374158, < 996422e3230e41468f652d754fefd1bdbcd4604e |
| Linux | Linux | 5.14 |
References
- https://git.kernel.org/stable/c/1c4e524811918600683b1ea87a5e0fc2db64fa9bPatch
- https://git.kernel.org/stable/c/2ab26aeec3de0a677e02d6bc4dc85d49cd1ec4ac
- https://git.kernel.org/stable/c/996422e3230e41468f652d754fefd1bdbcd4604ePatch
- https://git.kernel.org/stable/c/9aa83a5eb013f8aff20e701aa25ba6b0eaad0b65
- https://git.kernel.org/stable/c/1c4e524811918600683b1ea87a5e0fc2db64fa9bPatch
- https://git.kernel.org/stable/c/996422e3230e41468f652d754fefd1bdbcd4604ePatch
Timeline
- Published
- Jul 30, 2024
- Last modified
- Oct 30, 2026
- NVD status
- Modified