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>
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Suse | — | Upgrade kernel-kvmsmall-vdsoUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-azureUpgrade gfs2-kmp-defaultUpgrade dtb-amdUpgrade ocfs2-kmp-64kbUpgrade kernel-azure-extraUpgrade kernel-azureUpgrade kernel-azure-optionalUpgrade kernel-debugUpgrade kernel-default-livepatchUpgrade kernel-debug-vdsoUpgrade dtb-broadcomUpgrade kernel-azure-vdsoUpgrade dtb-freescaleUpgrade kernel-devel-azureUpgrade kernel-default-livepatch-develUpgrade dtb-marvellUpgrade kernel-rt-optionalUpgrade kernel-docs-htmlUpgrade dlm-kmp-64kbUpgrade dtb-allwinnerUpgrade dtb-appleUpgrade dtb-alteraUpgrade kernel-64kb-optionalUpgrade kernel-source-azureUpgrade reiserfs-kmp-64kbUpgrade dtb-lgUpgrade kernel-kvmsmall-develUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-64kbUpgrade kernel-source-rtUpgrade kernel-rt_debugUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-defaultUpgrade kernel-sourceUpgrade kernel-debug-develUpgrade dtb-amazonUpgrade kernel-default-develUpgrade kernel-obs-buildUpgrade dtb-hisiliconUpgrade kselftests-kmp-64kbUpgrade cluster-md-kmp-azureUpgrade kernel-64kbUpgrade ocfs2-kmp-defaultUpgrade dtb-caviumUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmallUpgrade gfs2-kmp-azureUpgrade kernel-rt-livepatch-develUpgrade dtb-renesasUpgrade kernel-rt-vdsoUpgrade dtb-socionextUpgrade kernel-rt_debug-develUpgrade kernel-syms-rtUpgrade dtb-exynosUpgrade ocfs2-kmp-azureUpgrade dtb-nvidiaUpgrade kernel-azure-develUpgrade kernel-64kb-develUpgrade ocfs2-kmp-rtUpgrade kernel-rt-livepatchUpgrade kernel-default-baseUpgrade dtb-sprdUpgrade kernel-rt-develUpgrade kernel-rtUpgrade dtb-rockchipUpgrade kernel-devel-rtUpgrade kernel-rt-extraUpgrade dtb-apmUpgrade dlm-kmp-azureUpgrade kernel-default-extraUpgrade dtb-xilinxUpgrade dtb-mediatekUpgrade reiserfs-kmp-azureUpgrade kernel-macrosUpgrade dtb-amlogicUpgrade kernel-default-base-rebuildUpgrade kernel-develUpgrade kernel-defaultUpgrade dtb-qcomUpgrade kselftests-kmp-rtUpgrade kernel-docsUpgrade kernel-symsUpgrade kernel-syms-azureUpgrade kernel-obs-qaUpgrade dlm-kmp-defaultUpgrade cluster-md-kmp-rtUpgrade kernel-default-optionalUpgrade cluster-md-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-default-vdsoUpgrade kernel-64kb-extraUpgrade dtb-armUpgrade dlm-kmp-rt | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-awsUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-gke-64k-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-oem-24.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-6.14.0-1012-azureUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-raspiUpgrade linux-image-raspi-6.8Upgrade linux-image-realtimeUpgrade linux-image-gkeUpgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-gke-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-gcp-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-6.14.0-1013-awsUpgrade linux-image-gcp-6.8Upgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-oem-24.04cUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-virtual-6.14Upgrade linux-image-6.14.0-1013-oracleUpgrade linux-image-azureUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-azure-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-oracleUpgrade linux-image-oem-22.04dUpgrade linux-image-realtime-6.14Upgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-64k-6.14Upgrade linux-image-aws-64k-6.8Upgrade linux-image-aws-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-oem-22.04bUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-kvmUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-aws-6.14Upgrade linux-image-generic-64k-6.14Upgrade linux-image-generic-6.14Upgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-6.14.0-32-genericUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-gcp-6.14Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-ibm-classicUpgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-fips-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-aws-fipsUpgrade linux-image-xilinxUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-raspi-realtimeUpgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-intel-iotgUpgrade linux-image-ibm-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-ibmUpgrade linux-image-gke-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-100-genericUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-aws-6.8Upgrade linux-image-azure-6.14Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-fipsUpgrade linux-image-raspi-6.14Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-6.14.0-1012-oemUpgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-gkeop-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-oracle-6.14Upgrade linux-image-gcp-fipsUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-oem-6.14Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-100-fipsUpgrade linux-image-oem-22.04aUpgrade linux-image-generic-64k | Jul 7, 2025 | Jul 3, 2025 |
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