In the Linux kernel, the following vulnerability has been resolved:
usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()
As demonstrated by the fix for update_port_device_state, commit 12783c0b9e2c ("usb: core: Prevent null pointer dereference in update_port_device_state"), usb_hub_to_struct_hub() can return NULL in certain scenarios, such as during hub driver unbind or teardown race conditions, even if the underlying usb_device structure exists.
Plus, all other places that call usb_hub_to_struct_hub() in the same file do check for NULL return values.
If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub->ports[udev->portnum - 1] will cause a null pointer dereference.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.12.35-55.103Upgrade kernel-tools-develUpgrade kernel6.12-debuginfoUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel-libbpf-debuginfoUpgrade kernel-develUpgrade kernel-modules-extra-commonUpgrade perf6.12-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-libbpf-staticUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade kernel6.12Upgrade perf6.12Upgrade kernel-libbpf | Aug 5, 2025 | Jul 3, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 3, 2025 |
| Suse | — | Upgrade kselftests-kmp-defaultUpgrade dtb-freescaleUpgrade kernel-default-extraUpgrade kernel-64kb-develUpgrade kernel-default-livepatch-develUpgrade dtb-xilinxUpgrade dtb-armUpgrade dtb-appleUpgrade dtb-allwinnerUpgrade kernel-64kb-optionalUpgrade kernel-default-develUpgrade dtb-caviumUpgrade ocfs2-kmp-defaultUpgrade kernel-obs-qaUpgrade gfs2-kmp-rtUpgrade dtb-mediatekUpgrade dtb-hisiliconUpgrade dtb-apmUpgrade dtb-renesasUpgrade kernel-zfcpdumpUpgrade dtb-amdUpgrade cluster-md-kmp-rtUpgrade dtb-lgUpgrade dtb-socionextUpgrade dlm-kmp-defaultUpgrade kernel-symsUpgrade dtb-amazonUpgrade ocfs2-kmp-rtUpgrade kernel-rt-livepatchUpgrade kernel-64kbUpgrade kselftests-kmp-rtUpgrade dlm-kmp-64kbUpgrade kernel-default-optionalUpgrade kernel-develUpgrade kernel-kvmsmall-develUpgrade kernel-rt-develUpgrade gfs2-kmp-64kbUpgrade kernel-rt-vdsoUpgrade kernel-sourceUpgrade kernel-macrosUpgrade kernel-default-livepatchUpgrade ocfs2-kmp-64kbUpgrade kernel-rtUpgrade gfs2-kmp-defaultUpgrade kernel-rt-optionalUpgrade cluster-md-kmp-64kbUpgrade dtb-qcomUpgrade dtb-sprdUpgrade dtb-alteraUpgrade kselftests-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade kernel-obs-buildUpgrade kernel-docs-htmlUpgrade dtb-broadcomUpgrade kernel-source-vanillaUpgrade kernel-kvmsmallUpgrade dtb-nvidiaUpgrade dtb-marvellUpgrade dtb-rockchipUpgrade dtb-exynosUpgrade kernel-docsUpgrade kernel-default-vdsoUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-extraUpgrade kernel-defaultUpgrade kernel-64kb-extraUpgrade dtb-amlogicUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-default | Dec 5, 2025 | Nov 6, 2025 |
| Ubuntu | — | Upgrade linux-image-aws-64k-6.14Upgrade linux-image-generic-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-gcp-6.14Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-realtime-6.14Upgrade linux-image-6.14.0-1012-oemUpgrade linux-image-6.14.0-1013-awsUpgrade linux-image-6.14.0-1013-aws-64kUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-aws-6.14Upgrade linux-image-azureUpgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-1016-gcp-64kUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-6.14.0-1013-oracle-64kUpgrade linux-image-6.14.0-1013-oracleUpgrade linux-image-oem-24.04cUpgrade linux-image-gcp-64kUpgrade linux-image-virtual-6.14Upgrade linux-image-generic-64kUpgrade linux-image-6.14.0-1012-azureUpgrade linux-image-6.14.0-32-generic-64kUpgrade linux-image-genericUpgrade linux-image-oracle-64kUpgrade linux-image-raspiUpgrade linux-image-oracle-6.14Upgrade linux-image-oem-6.14Upgrade linux-image-virtualUpgrade linux-image-oracleUpgrade linux-image-generic-64k-6.14Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-gcpUpgrade linux-image-awsUpgrade linux-image-oem-24.04aUpgrade linux-image-6.14.0-1016-gcpUpgrade linux-image-oem-24.04bUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-aws-64kUpgrade linux-image-6.14.0-1012-realtimeUpgrade linux-image-6.14.0-32-genericUpgrade linux-image-6.14.0-1014-raspiUpgrade linux-image-azure-6.14Upgrade linux-image-oem-24.04 | Jul 7, 2025 | Jul 3, 2025 |
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