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In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()
In ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to retrieve the ab pointer. In vdev delete sequence the arvif->ar could become NULL and that would trigger kernel panic. Since the caller ath12k_dp_tx() already has a valid ab pointer, pass it directly to avoid panic and unnecessary dereferencing.
PC points to "ath12k_dp_tx+0x228/0x988 [ath12k]" LR points to "ath12k_dp_tx+0xc8/0x988 [ath12k]". The Backtrace obtained is as follows: ath12k_dp_tx+0x228/0x988 [ath12k] ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k] ieee80211_process_measurement_req+0x320/0x348 [mac80211] ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211] ieee80211_tx_dequeue+0xb14/0x1518 [mac80211] ieee80211_tx_prepare_skb+0x224/0x254 [mac80211] ieee80211_xmit+0xec/0x100 [mac80211] __ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211] ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211] netdev_start_xmit+0x150/0x18c dev_hard_start_xmit+0x74/0xc0
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Aug 19, 2025 |
| Suse | — | Upgrade kernel-rt-optionalUpgrade cluster-md-kmp-azureUpgrade kernel-zfcpdumpUpgrade dlm-kmp-64kbUpgrade dtb-marvellUpgrade ocfs2-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-default-baseUpgrade kernel-source-vanillaUpgrade dtb-alteraUpgrade kernel-debugUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-64kbUpgrade dtb-broadcomUpgrade dtb-amazonUpgrade dtb-amdUpgrade kernel-docs-htmlUpgrade dtb-amlogicUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-azureUpgrade kernel-rt-vdsoUpgrade kernel-default-develUpgrade kernel-debug-develUpgrade kernel-azure-extraUpgrade kernel-azureUpgrade kselftests-kmp-azureUpgrade kernel-syms-rtUpgrade kernel-source-azureUpgrade dtb-freescaleUpgrade dtb-appleUpgrade dtb-lgUpgrade kselftests-kmp-64kbUpgrade kernel-rt_debug-develUpgrade kernel-obs-qaUpgrade kernel-64kb-optionalUpgrade dtb-socionextUpgrade reiserfs-kmp-64kbUpgrade kernel-symsUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kbUpgrade dlm-kmp-defaultUpgrade kernel-source-rtUpgrade gfs2-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-default-livepatchUpgrade kernel-default-extraUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azure-vdsoUpgrade dtb-renesasUpgrade dtb-hisiliconUpgrade kernel-default-livepatch-develUpgrade kernel-azure-optionalUpgrade ocfs2-kmp-64kbUpgrade kernel-rt_debugUpgrade kernel-debug-vdsoUpgrade dlm-kmp-rtUpgrade kernel-docsUpgrade dtb-armUpgrade dtb-qcomUpgrade kernel-rtUpgrade kernel-rt-livepatchUpgrade dtb-xilinxUpgrade kselftests-kmp-defaultUpgrade kernel-syms-azureUpgrade gfs2-kmp-defaultUpgrade kernel-sourceUpgrade cluster-md-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade kernel-rt-extraUpgrade kernel-defaultUpgrade dtb-rockchipUpgrade kernel-develUpgrade kernel-default-base-rebuildUpgrade kernel-devel-azureUpgrade kernel-64kb-extraUpgrade kernel-obs-buildUpgrade dtb-mediatekUpgrade dtb-exynosUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-develUpgrade dtb-caviumUpgrade kernel-devel-rtUpgrade dtb-sprdUpgrade kernel-azure-develUpgrade kernel-default-vdsoUpgrade reiserfs-kmp-azureUpgrade dtb-allwinnerUpgrade kernel-rt-develUpgrade dtb-apmUpgrade dtb-nvidiaUpgrade kernel-kvmsmallUpgrade kernel-default-optionalUpgrade kernel-macrosUpgrade cluster-md-kmp-64kbUpgrade dlm-kmp-azure | Dec 5, 2025 | Sep 22, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-gcp-64kUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-1016-oemUpgrade linux-image-6.14.0-1017-azureUpgrade linux-image-gcpUpgrade linux-image-virtual-6.14Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-generic-6.14Upgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-raspi-6.14Upgrade linux-image-raspiUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-aws-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-azureUpgrade linux-image-aws-64k-6.14Upgrade linux-image-6.14.0-1017-awsUpgrade linux-image-realtime-6.14Upgrade linux-image-gcp-6.14Upgrade linux-image-oem-24.04aUpgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-realtimeUpgrade linux-image-oem-6.14Upgrade linux-image-awsUpgrade linux-image-oracle-6.14Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-genericUpgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-azure-6.14Upgrade linux-image-generic-64k-6.14Upgrade linux-image-oracleUpgrade linux-image-virtualUpgrade linux-image-6.14.0-36-generic-64k | Nov 25, 2025 | Nov 21, 2025 |
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