In the Linux kernel, the following vulnerability has been resolved:
pps: fix warning in pps_register_cdev when register device fail
Similar to previous commit 2a934fdb01db ("media: v4l2-dev: fix error handling in __video_register_device()"), the release hook should be set before device_register(). Otherwise, when device_register() return error and put_device() try to callback the release function, the below warning may happen.
------------[ cut here ]------------ WARNING: CPU: 1 PID: 4760 at drivers/base/core.c:2567 device_release+0x1bd/0x240 drivers/base/core.c:2567 Modules linked in: CPU: 1 UID: 0 PID: 4760 Comm: syz.4.914 Not tainted 6.17.0-rc3+ #1 NONE RIP: 0010:device_release+0x1bd/0x240 drivers/base/core.c:2567 Call Trace: <TASK> kobject_cleanup+0x136/0x410 lib/kobject.c:689 kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0xe9/0x130 lib/kobject.c:737 put_device+0x24/0x30 drivers/base/core.c:3797 pps_register_cdev+0x2da/0x370 drivers/pps/pps.c:402 pps_register_source+0x2f6/0x480 drivers/pps/kapi.c:108 pps_tty_open+0x190/0x310 drivers/pps/clients/pps-ldisc.c:57 tty_ldisc_open+0xa7/0x120 drivers/tty/tty_ldisc.c:432 tty_set_ldisc+0x333/0x780 drivers/tty/tty_ldisc.c:563 tiocsetd drivers/tty/tty_io.c:2429 [inline] tty_ioctl+0x5d1/0x1700 drivers/tty/tty_io.c:2728 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl fs/ioctl.c:584 [inline] __x64_sys_ioctl+0x194/0x210 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x5f/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK>
Before commit c79a39dc8d06 ("pps: Fix a use-after-free"), pps_register_cdev() call device_create() to create pps->dev, which will init dev->release to device_create_release(). Now the comment is outdated, just remove it.
Thanks for the reminder from Calvin Owens, 'kfree_pps' should be removed in pps_register_source() to avoid a double free in the failure case.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftoolUpgrade kernel-livepatch-4.14.355-280.713Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.15.195-136.216Upgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade python-perfUpgrade kernelUpgrade kernel-toolsUpgrade perfUpgrade kernel-tools-develUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-livepatch-5.10.247-246.989 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12-tools-debuginfoUpgrade kernelUpgrade bpftoolUpgrade bpftool6.12Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-develUpgrade python3-perf-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-develUpgrade kernel-livepatch-6.12.53-69.119Upgrade kernel6.12-toolsUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade perf6.12-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpf-staticUpgrade kernel6.12-libbpfUpgrade kernel-headersUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade perf6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade bpftool6.12-debuginfoUpgrade kernel6.12Upgrade kernel-tools-debuginfoUpgrade kernel-modules-extraUpgrade kernel-livepatch-6.1.156-177.286Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel6.12-headersUpgrade bpftool-debuginfoUpgrade kernel6.12-develUpgrade kernel-libbpfUpgrade kernel6.12-tools-develUpgrade perf-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade kernel-libbpf-debuginfoUpgrade kernel-debuginfo | Dec 9, 2025 | Oct 28, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Nov 13, 2025 | Nov 13, 2025 |
| Oracle_linux | — | Upgrade kernel-uek | Dec 11, 2025 | Oct 28, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 28, 2025 |
| Ubuntu | — | Upgrade linux-image-aws-64k-5.15Upgrade linux-image-5.15.0-1092-intel-iot-realtimeUpgrade linux-image-gcp-64kUpgrade linux-image-gcp-6.17Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-gke-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.15.0-1095-nvidia-lowlatencyUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-xilinx-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-5.15.0-1041-nvidia-tegra-igxUpgrade linux-image-raspi-6.8Upgrade linux-image-gkeopUpgrade linux-image-realtime-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-azureUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-gke-64k-6.8Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-aws-fipsUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-5.15.0-1052-nvidia-tegraUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-generic-64k-6.17Upgrade linux-image-5.15.0-1095-nvidiaUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-5.15.0-1097-oracleUpgrade linux-image-gke-6.8Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-oracle-6.17Upgrade linux-image-generic-64kUpgrade linux-image-azure-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-raspiUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-aws-fips-5.15Upgrade linux-image-realtime-6.17Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-generic-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.15.0-1041-nvidia-tegra-igx-rtUpgrade linux-image-gkeop-5.15Upgrade linux-image-nvidia-6.8Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-raspi-5.15Upgrade linux-image-awsUpgrade linux-image-oem-22.04dUpgrade linux-image-5.15.0-1083-gkeopUpgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-5.15.0-170-lowlatencyUpgrade linux-image-aws-64k-6.17Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-5.15.0-1110-azureUpgrade linux-image-5.15.0-170-generic-64kUpgrade linux-image-5.15.0-170-lowlatency-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-fipsUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oracle-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-genericUpgrade linux-image-nvidia-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-realtime-6.8.1Upgrade linux-image-realtimeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-oracle-6.8Upgrade linux-image-5.15.0-1100-awsUpgrade linux-image-gcp-5.15Upgrade linux-image-generic-6.17Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-oem-6.17Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-aws-6.17Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-azure-6.17Upgrade linux-image-azure-lts-24.04Upgrade linux-image-5.15.0-1100-gcp-fipsUpgrade linux-image-virtual-6.17Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-gke-5.15Upgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-5.15.0-1100-aws-64kUpgrade linux-image-fips-5.15Upgrade linux-image-5.15.0-1097-raspiUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-5.15.0-1099-realtimeUpgrade linux-image-5.15.0-1092-kvmUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-5.15.0-1109-azureUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.15.0-170-fipsUpgrade linux-image-intelUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04Upgrade linux-image-virtualUpgrade linux-image-raspi-realtimeUpgrade linux-image-raspi-6.17Upgrade linux-image-ibmUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-gcp-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-oem-20.04dUpgrade linux-image-aws-fips-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-kvmUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-5.15.0-1109-azure-fipsUpgrade linux-image-5.15.0-1096-gkeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidiaUpgrade linux-image-oem-22.04bUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-5.15.0-170-generic-lpaeUpgrade linux-image-xilinxUpgrade linux-image-oem-20.04bUpgrade linux-image-lowlatencyUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1095-intel-iotgUpgrade linux-image-5.15.0-1094-ibmUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-aws-64kUpgrade linux-image-oracleUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1064-xilinx-zynqmpUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-oracle-64kUpgrade linux-image-oem-20.04Upgrade linux-image-gcpUpgrade linux-image-5.15.0-1052-nvidia-tegra-rtUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-ibm-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-5.15.0-1100-aws-fipsUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-kvm-5.15Upgrade linux-image-generic-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-gkeUpgrade linux-image-generic-64k-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-5.15.0-170-genericUpgrade linux-image-5.15.0-1100-gcp | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Oct 28, 2025 |
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