In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.
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 |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Aug 18, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-ibmUpgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-intel-iotg-5.15Upgrade linux-nvidiaUpgrade linux-gkeUpgrade linux-gcp-5.15Upgrade linux-nvidia-tegraUpgrade linux-azure-5.15Upgrade linux-ibm-5.15Upgrade linux-kvmUpgrade linux-realtimeUpgrade linux-oracleUpgrade linux-xilinx-zynqmpUpgrade linux-intel-iotgUpgrade linux-oracle-5.15Upgrade linux-azure-fde-5.15Upgrade linux-aws-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-gkeopUpgrade linux-gcpUpgrade linux-riscv-5.15Upgrade linux-hwe-5.15Upgrade linux-awsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-bluefieldUpgrade linux-azureUpgrade linuxUpgrade linux-nvidia-tegra-5.15 | Aug 19, 2025 | Aug 18, 2025 |
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