In the Linux kernel, the following vulnerability has been resolved:
net: wwan: t7xx: Fix napi rx poll issue
When driver handles the napi rx polling requests, the netdev might have been released by the dellink logic triggered by the disconnect operation on user plane. However, in the logic of processing skb in polling, an invalid netdev is still being used, which causes a panic.
BUG: kernel NULL pointer dereference, address: 00000000000000f1 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:dev_gro_receive+0x3a/0x620 [...] Call Trace: <IRQ> ? __die_body+0x68/0xb0 ? page_fault_oops+0x379/0x3e0 ? exc_page_fault+0x4f/0xa0 ? asm_exc_page_fault+0x22/0x30 ? __pfx_t7xx_ccmni_recv_skb+0x10/0x10 [mtk_t7xx (HASH:1400 7)] ? dev_gro_receive+0x3a/0x620 napi_gro_receive+0xad/0x170 t7xx_ccmni_recv_skb+0x48/0x70 [mtk_t7xx (HASH:1400 7)] t7xx_dpmaif_napi_rx_poll+0x590/0x800 [mtk_t7xx (HASH:1400 7)] net_rx_action+0x103/0x470 irq_exit_rcu+0x13a/0x310 sysvec_apic_timer_interrupt+0x56/0x90 </IRQ>
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Suse | — | Upgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade reiserfs-kmp-defaultUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azure-vdsoUpgrade dtb-hisiliconUpgrade kernel-default-develUpgrade kernel-default-livepatchUpgrade kernel-devel-azureUpgrade dtb-amdUpgrade kernel-64kb-optionalUpgrade kselftests-kmp-azureUpgrade reiserfs-kmp-64kbUpgrade dlm-kmp-64kbUpgrade dtb-appleUpgrade reiserfs-kmp-rtUpgrade kernel-source-azureUpgrade kernel-azure-extraUpgrade kernel-kvmsmall-develUpgrade dtb-amazonUpgrade dtb-socionextUpgrade kernel-syms-rtUpgrade dtb-exynosUpgrade dtb-broadcomUpgrade dtb-freescaleUpgrade dtb-alteraUpgrade dtb-marvellUpgrade kernel-docs-htmlUpgrade ocfs2-kmp-64kbUpgrade dtb-allwinnerUpgrade gfs2-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-obs-buildUpgrade kernel-debugUpgrade dtb-caviumUpgrade kernel-rt_debug-develUpgrade dtb-renesasUpgrade kernel-rt-vdsoUpgrade kernel-rt-optionalUpgrade kernel-kvmsmallUpgrade cluster-md-kmp-azureUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-azureUpgrade kernel-sourceUpgrade kernel-default-livepatch-develUpgrade kernel-source-vanillaUpgrade dtb-lgUpgrade kernel-debug-develUpgrade kernel-source-rtUpgrade kernel-debug-vdsoUpgrade gfs2-kmp-rtUpgrade kernel-rt_debugUpgrade kernel-64kbUpgrade gfs2-kmp-64kbUpgrade kernel-azureUpgrade kernel-azure-optionalUpgrade kernel-default-extraUpgrade dtb-mediatekUpgrade dtb-rockchipUpgrade dtb-apmUpgrade dlm-kmp-azureUpgrade kernel-rt-extraUpgrade kselftests-kmp-defaultUpgrade kernel-symsUpgrade kernel-rt_debug-vdsoUpgrade cluster-md-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-default-vdsoUpgrade kernel-default-optionalUpgrade kernel-64kb-extraUpgrade kernel-macrosUpgrade dtb-amlogicUpgrade kernel-default-base-rebuildUpgrade dtb-xilinxUpgrade reiserfs-kmp-azureUpgrade kernel-defaultUpgrade dtb-qcomUpgrade kselftests-kmp-rtUpgrade kernel-docsUpgrade cluster-md-kmp-rtUpgrade kernel-syms-azureUpgrade dlm-kmp-defaultUpgrade kernel-develUpgrade kernel-obs-qaUpgrade kernel-rt-develUpgrade kernel-rtUpgrade dtb-sprdUpgrade kernel-rt-livepatchUpgrade kernel-devel-rtUpgrade dtb-armUpgrade dtb-nvidiaUpgrade dlm-kmp-rtUpgrade ocfs2-kmp-rtUpgrade kernel-default-baseUpgrade ocfs2-kmp-azureUpgrade kernel-azure-develUpgrade kernel-64kb-devel | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1013-oracleUpgrade linux-image-azure-fipsUpgrade linux-image-oem-24.04cUpgrade linux-image-oracleUpgrade linux-image-azureUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-virtual-6.14Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-gke-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-6.14.0-1013-awsUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-gcp-6.14Upgrade linux-image-6.14.0-32-genericUpgrade linux-image-gkeUpgrade linux-image-aws-fips-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-6.14.0-1012-azureUpgrade linux-image-oem-22.04dUpgrade linux-image-realtime-6.14Upgrade linux-image-aws-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-awsUpgrade linux-image-oracle-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-aws-64k-6.14Upgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-6.14Upgrade linux-image-realtime-6.8.1Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-raspi-6.8Upgrade linux-image-gcpUpgrade linux-image-kvmUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-oracle-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-raspiUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-xilinx-6.8Upgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-generic-64k-6.14Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-aws-6.14Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-gkeopUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-raspi-realtimeUpgrade linux-image-fipsUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-azure-6.14Upgrade linux-image-gcp-fipsUpgrade linux-image-ibm-classicUpgrade linux-image-oem-22.04aUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.14.0-1012-oemUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-nvidiaUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-6.8Upgrade linux-image-xilinxUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-genericUpgrade linux-image-fips-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-ibmUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-oem-6.14Upgrade linux-image-gke-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-100-genericUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-ibm-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oracle-6.14Upgrade linux-image-6.8.0-1046-awsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-raspi-6.14Upgrade linux-image-6.8.0-1043-oracle | Jul 7, 2025 | Jul 3, 2025 |
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