In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release
The fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be NULL even after EPF initialization. Then it is prudent to check that they have non-NULL values before releasing the channels. Add the checks in pci_epf_test_clean_dma_chan().
Without the checks, NULL pointer dereferences happen and they can lead to a kernel panic in some cases:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Call trace: dma_release_channel+0x2c/0x120 (P) pci_epf_test_epc_deinit+0x94/0xc0 [pci_epf_test] pci_epc_deinit_notify+0x74/0xc0 tegra_pcie_ep_pex_rst_irq+0x250/0x5d8 irq_thread_fn+0x34/0xb8 irq_thread+0x18c/0x2e8 kthread+0x14c/0x210 ret_from_fork+0x10/0x20
[mani: trimmed the stack trace]
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Nov 13, 2025 | Nov 13, 2025 |
| Suse | — | Upgrade kernel-zfcpdumpUpgrade kernel-64kbUpgrade kernel-sourceUpgrade kernel-macrosUpgrade kernel-default-extraUpgrade kernel-default-develUpgrade kernel-obs-buildUpgrade kernel-defaultUpgrade kernel-develUpgrade kernel-symsUpgrade kernel-docsUpgrade kernel-default-baseUpgrade reiserfs-kmp-defaultUpgrade kernel-64kb-devel | Dec 5, 2025 | Nov 11, 2025 |
| Ubuntu | — | Upgrade linux-image-raspi-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-oem-22.04Upgrade linux-image-virtual-6.17Upgrade linux-image-gkeopUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oracleUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-virtualUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-azure-6.8Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-gke-64k-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-gcpUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-gkeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-gke-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-generic-64kUpgrade linux-image-oracle-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-xilinxUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-realtime-6.17Upgrade linux-image-aws-64kUpgrade linux-image-fips-6.8Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-realtimeUpgrade linux-image-genericUpgrade linux-image-oracle-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-ibm-classicUpgrade linux-image-azure-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-azure-6.17Upgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-realtime-6.8.1Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-raspiUpgrade linux-image-oem-22.04dUpgrade linux-image-generic-lpaeUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-oem-6.17Upgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-oem-22.04aUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-kvmUpgrade linux-image-azureUpgrade linux-image-awsUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-generic-6.17Upgrade linux-image-oracle-6.17Upgrade linux-image-lowlatency-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-fipsUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-aws-6.8Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-xilinx-6.8Upgrade linux-image-aws-64k-6.17Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-gke-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-generic-64k-6.17Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcp-fipsUpgrade linux-image-raspi-6.8Upgrade linux-image-ibmUpgrade linux-image-azure-fipsUpgrade linux-image-virtual-6.8Upgrade linux-image-generic-6.8 | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Oct 28, 2025 |
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