CVE-2025-38605

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()<br /> <br /> In ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to<br /> retrieve the ab pointer. In vdev delete sequence the arvif-&gt;ar could<br /> become NULL and that would trigger kernel panic.<br /> Since the caller ath12k_dp_tx() already has a valid ab pointer, pass it<br /> directly to avoid panic and unnecessary dereferencing.<br /> <br /> PC points to "ath12k_dp_tx+0x228/0x988 [ath12k]"<br /> LR points to "ath12k_dp_tx+0xc8/0x988 [ath12k]".<br /> The Backtrace obtained is as follows:<br /> ath12k_dp_tx+0x228/0x988 [ath12k]<br /> ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k]<br /> ieee80211_process_measurement_req+0x320/0x348 [mac80211]<br /> ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211]<br /> ieee80211_tx_dequeue+0xb14/0x1518 [mac80211]<br /> ieee80211_tx_prepare_skb+0x224/0x254 [mac80211]<br /> ieee80211_xmit+0xec/0x100 [mac80211]<br /> __ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211]<br /> ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211]<br /> netdev_start_xmit+0x150/0x18c<br /> dev_hard_start_xmit+0x74/0xc0<br /> <br /> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1