In the Linux kernel, the following vulnerability has been resolved:
serial: 8250: Fix oops for port->pm on uart_change_pm()
Unloading a hardware specific 8250 driver can produce error "Unable to handle kernel paging request at virtual address" about ten seconds after unloading the driver. This happens on uart_hangup() calling uart_change_pm().
Turns out commit 04e82793f068 ("serial: 8250: Reinit port->pm on port specific driver unbind") was only a partial fix. If the hardware specific driver has initialized port->pm function, we need to clear port->pm too. Just reinitializing port->ops does not do this. Otherwise serial8250_pm() will call port->pm() instead of serial8250_do_pm().
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade kernel-livepatch-4.14.326-245.539Upgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.128-80.144Upgrade perfUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-develUpgrade python-perfUpgrade kernel-tools-develUpgrade kernelUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.192-182.736Upgrade kernel-tools | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpfUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debuginfoUpgrade kernel-livepatch-6.1.49-69.116Upgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade python3-perf-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-tools-debuginfoUpgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-libbpf-staticUpgrade bpftool-debuginfo | Feb 20, 2026 | Dec 30, 2025 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-azureUpgrade linux-azure-fipsUpgrade linux-gcpUpgrade linux-gcp-fipsUpgrade linux-azure-5.4Upgrade linux-gcp-5.4Upgrade linux-nvidiaUpgrade linux-intel-iot-realtimeUpgrade linux-iotUpgrade linux-oracleUpgrade linux-kvmUpgrade linux-ibmUpgrade linux-aws-fipsUpgrade linux-xilinx-zynqmpUpgrade linux-nvidia-tegra-igxUpgrade linux-raspi-5.4Upgrade linux-gcp-5.15Upgrade linux-azure-5.15Upgrade linux-gkeopUpgrade linux-awsUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-raspiUpgrade linux-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-nvidia-tegraUpgrade linux-aws-5.4Upgrade linux-gkeUpgrade linux-lowlatencyUpgrade linux-aws-5.15Upgrade linux-oracle-5.15Upgrade linux-ibm-5.15Upgrade linux-bluefieldUpgrade linux-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-ibm-5.4Upgrade linux-fipsUpgrade linux-oracle-5.4Upgrade linuxUpgrade linux-intel-iotg | Jan 6, 2026 | Jan 2, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub