In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Harden uplink netdev access against device unbind
The function mlx5_uplink_netdev_get() gets the uplink netdevice pointer from mdev->mlx5e_res.uplink_netdev. However, the netdevice can be removed and its pointer cleared when unbound from the mlx5_core.eth driver. This results in a NULL pointer, causing a kernel panic.
BUG: unable to handle page fault for address: 0000000000001300 at RIP: 0010:mlx5e_vport_rep_load+0x22a/0x270 [mlx5_core] Call Trace: <TASK> mlx5_esw_offloads_rep_load+0x68/0xe0 [mlx5_core] esw_offloads_enable+0x593/0x910 [mlx5_core] mlx5_eswitch_enable_locked+0x341/0x420 [mlx5_core] mlx5_devlink_eswitch_mode_set+0x17e/0x3a0 [mlx5_core] devlink_nl_eswitch_set_doit+0x60/0xd0 genl_family_rcv_msg_doit+0xe0/0x130 genl_rcv_msg+0x183/0x290 netlink_rcv_skb+0x4b/0xf0 genl_rcv+0x24/0x40 netlink_unicast+0x255/0x380 netlink_sendmsg+0x1f3/0x420 __sock_sendmsg+0x38/0x60 __sys_sendto+0x119/0x180 do_syscall_64+0x53/0x1d0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
Ensure the pointer is valid before use by checking it for NULL. If it is valid, immediately call netdev_hold() to take a reference, and preventing the netdevice from being freed while it is in use.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12Upgrade perf6.12Upgrade kernel6.12-headersUpgrade kernel6.12-libbpf-debuginfoUpgrade bpftool6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.12-modules-extraUpgrade kernel6.12-debuginfoUpgrade kernel-livepatch-6.12.53-69.119Upgrade kernel6.12-tools-develUpgrade kernel6.12-develUpgrade kernel6.12-toolsUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-tools-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade bpftool6.12-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-libbpfUpgrade python3-perf6.12-debuginfo | Oct 28, 2025 | Oct 4, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Nov 11, 2025 | Oct 4, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 4, 2025 |
| Suse | — | Upgrade kernel-symsUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade kernel-default-develUpgrade kernel-64kbUpgrade kernel-default-baseUpgrade reiserfs-kmp-defaultUpgrade kernel-macrosUpgrade kernel-zfcpdumpUpgrade kernel-develUpgrade kernel-sourceUpgrade kernel-default-extraUpgrade kernel-obs-build | Dec 5, 2025 | Nov 11, 2025 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-aws-6.8Upgrade linux-image-generic-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-gke-64kUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-generic-64k-6.8Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-oracle-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-virtual-6.8Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-lowlatency-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-gke-6.8Upgrade linux-image-ibmUpgrade linux-image-genericUpgrade linux-image-gcp-64kUpgrade linux-image-raspiUpgrade linux-image-xilinx-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-aws-64k-6.8Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-azureUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-raspi-realtimeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-aws-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-awsUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-gcpUpgrade linux-image-azure-6.8Upgrade linux-image-xilinxUpgrade linux-image-realtimeUpgrade linux-image-generic-lpaeUpgrade linux-image-aws-fips-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-oracleUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-fipsUpgrade linux-image-fips-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-virtualUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-gkeUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-azure-fips-6.8 | Mar 17, 2026 | Oct 4, 2025 |
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