In the Linux kernel, the following vulnerability has been resolved:
usb: xhci: Check endpoint is valid before dereferencing it
When the host controller is not responding, all URBs queued to all endpoints need to be killed. This can cause a kernel panic if we dereference an invalid endpoint.
Fix this by using xhci_get_virt_ep() helper to find the endpoint and checking if the endpoint is valid before dereferencing it.
[233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead [233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8
[233311.853964] pc : xhci_hc_died+0x10c/0x270 [233311.853971] lr : xhci_hc_died+0x1ac/0x270
[233311.854077] Call trace: [233311.854085] xhci_hc_died+0x10c/0x270 [233311.854093] xhci_stop_endpoint_command_watchdog+0x100/0x1a4 [233311.854105] call_timer_fn+0x50/0x2d4 [233311.854112] expire_timers+0xac/0x2e4 [233311.854118] run_timer_softirq+0x300/0xabc [233311.854127] __do_softirq+0x148/0x528 [233311.854135] irq_exit+0x194/0x1a8 [233311.854143] __handle_domain_irq+0x164/0x1d0 [233311.854149] gic_handle_irq.22273+0x10c/0x188 [233311.854156] el1_irq+0xfc/0x1a8 [233311.854175] lpm_cpuidle_enter+0x25c/0x418 [msm_pm] [233311.854185] cpuidle_enter_state+0x1f0/0x764 [233311.854194] do_idle+0x594/0x6ac [233311.854201] cpu_startup_entry+0x7c/0x80 [233311.854209] secondary_start_kernel+0x170/0x198
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-livepatch-4.14.304-226.531Upgrade python-perfUpgrade kernel-livepatch-5.10.165-143.735Upgrade kernel-livepatch-5.15.90-54.138Upgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade bpftoolUpgrade kernelUpgrade kernel-headersUpgrade kernel-tools-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Aug 22, 2024 | Aug 22, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade python3-perf | Feb 11, 2025 | Aug 21, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Aug 21, 2024 |
| Ubuntu | — | Upgrade linuxUpgrade linux-azure-4.15Upgrade linux-raspiUpgrade linux-intel-iot-realtimeUpgrade linux-bluefieldUpgrade linux-lowlatency-hwe-5.15Upgrade linux-aws-5.4Upgrade linux-oracle-5.4Upgrade linux-iotUpgrade linux-ibm-5.4Upgrade linux-awsUpgrade linux-nvidia-tegra-5.15Upgrade linux-raspi-5.4Upgrade linux-aws-5.15Upgrade linux-riscv-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-oracle-5.15Upgrade linux-azure-fipsUpgrade linux-intel-iotgUpgrade linux-gcp-fipsUpgrade linux-azure-5.15Upgrade linux-azureUpgrade linux-gcpUpgrade linux-hweUpgrade linux-azure-fdeUpgrade linux-aws-fipsUpgrade linux-gcp-5.15Upgrade linux-ibmUpgrade linux-hwe-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-azure-5.4Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-realtimeUpgrade linux-lowlatencyUpgrade linux-oracleUpgrade linux-gkeopUpgrade linux-gcp-5.4Upgrade linux-gkeop-5.15Upgrade linux-aws-hweUpgrade linux-gkeUpgrade linux-gcp-4.15Upgrade linux-nvidiaUpgrade linux-fips | Nov 19, 2024 | Aug 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Aug 21, 2024 |
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