In the Linux kernel, the following vulnerability has been resolved:
spmi: Add a check for remove callback when removing a SPMI driver
When removing a SPMI driver, there can be a crash due to NULL pointer dereference if it does not have a remove callback defined. This is one such call trace observed when removing the QCOM SPMI PMIC driver:
dump_backtrace.cfi_jt+0x0/0x8 dump_stack_lvl+0xd8/0x16c panic+0x188/0x498 __cfi_slowpath+0x0/0x214 __cfi_slowpath+0x1dc/0x214 spmi_drv_remove+0x16c/0x1e0 device_release_driver_internal+0x468/0x79c driver_detach+0x11c/0x1a0 bus_remove_driver+0xc4/0x124 driver_unregister+0x58/0x84 cleanup_module+0x1c/0xc24 [qcom_spmi_pmic] __do_sys_delete_module+0x3ec/0x53c __arm64_sys_delete_module+0x18/0x28 el0_svc_common+0xdc/0x294 el0_svc+0x38/0x9c el0_sync_handler+0x8c/0xf0 el0_sync+0x1b4/0x1c0
If a driver has all its resources allocated through devm_() APIs and does not need any other explicit cleanup, it would not require a remove callback to be defined. Hence, add a check for remove callback presence before calling it when removing a SPMI driver.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade kernel-livepatch-4.14.318-240.529Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade python-perfUpgrade kernel-livepatch-5.15.117-72.142Upgrade python-perf-debuginfoUpgrade kernelUpgrade kernel-toolsUpgrade perfUpgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-livepatch-5.10.184-174.730Upgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade perf-debuginfoUpgrade kernel-libbpfUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-debuginfoUpgrade perfUpgrade python3-perfUpgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-develUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-develUpgrade bpftoolUpgrade kernel-livepatch-6.1.29-47.49Upgrade python3-perf-debuginfo | Feb 20, 2026 | Dec 24, 2025 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Ubuntu | — | Upgrade linux-gcp-fipsUpgrade linux-aws-fipsUpgrade linux-raspi-5.4Upgrade linux-hwe-5.4Upgrade linux-ibm-5.15Upgrade linux-gcp-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-aws-5.4Upgrade linux-raspiUpgrade linux-ibmUpgrade linux-fipsUpgrade linux-riscv-5.15Upgrade linux-azure-5.15Upgrade linux-gkeopUpgrade linux-azureUpgrade linux-intel-iot-realtimeUpgrade linux-gkeUpgrade linux-kvmUpgrade linux-lowlatencyUpgrade linux-realtimeUpgrade linux-hwe-5.15Upgrade linux-intel-iotgUpgrade linux-gcpUpgrade linux-intel-iotg-5.15Upgrade linux-oracle-5.15Upgrade linux-nvidiaUpgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-oracleUpgrade linux-azure-5.4Upgrade linux-oracle-5.4Upgrade linux-awsUpgrade linux-nvidia-tegraUpgrade linuxUpgrade linux-ibm-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-iotUpgrade linux-gcp-5.4Upgrade linux-nvidia-tegra-igxUpgrade linux-aws-5.15Upgrade linux-azure-fips | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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