Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ice: fix potential NULL pointer deref in error path of ice_set_ringparam() ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without clearing ICE_TX_RING_FLAGS_TXTIME bit. When ICE_TX_RING_FLAGS_TXTIME is set and the subsequent ice_setup_tx_ring() call fails, a NULL pointer dereference could happen in the unwinding sequence: ice_clean_tx_ring() -> ice_is_txtime_cfg() == true (ICE_TX_RING_FLAGS_TXTIME is set) -> ice_free_tx_tstamp_ring() -> ice_free_tstamp_ring() -> tstamp_ring->desc (NULL deref) Clear ICE_TX_RING_FLAGS_TXTIME bit to avoid the potential issue. Note that this potential issue is found by manual code review. Compile test only since unfortunately I don't have E830 devices.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 before c789649d4334a3767210071311d58bc8e74bdec1; affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 before c54e3c270384829336b2526033d44ce1aa6dc67c; affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 before fa28351f970fa5138c7c5dedfe5dea480a0ee065 |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.57 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.