In the Linux kernel, the following vulnerability has been resolved:
drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()
The last case label can write two buffers 'mc_reg_address[j]' and 'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE since there are no checks for this value in both case labels after the last 'j++'.
Instead of changing '>' to '>=' there, add the bounds check at the start of the second 'case' (the first one already has it).
Also, remove redundant last checks for 'j' index bigger than array size. The expression is always false. Moreover, before or after the patch 'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it seems it can be a valid value.
Detected using the static analysis tool - Svace.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade python-perfUpgrade kernel-livepatch-4.14.291-218.527Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.144-127.601Upgrade kernel-develUpgrade bpftoolUpgrade kernelUpgrade kernel-debuginfo-common-aarch64 | Jul 9, 2025 | Jun 18, 2025 |
| Debian | — | Upgrade linux | Jun 20, 2025 | Jun 20, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 18, 2025 |
| Ubuntu | — | Upgrade linux-gcpUpgrade linux-gcp-4.15Upgrade linux-azure-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-5.4Upgrade linux-gcp-5.15Upgrade linux-ibmUpgrade linux-realtimeUpgrade linux-aws-fipsUpgrade linux-intel-iotgUpgrade linux-kvmUpgrade linux-awsUpgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-azure-4.15Upgrade linux-gcp-fipsUpgrade linux-riscv-5.15Upgrade linux-hwe-5.4Upgrade linux-hweUpgrade linux-fipsUpgrade linuxUpgrade linux-intel-iotg-5.15Upgrade linux-aws-hweUpgrade linux-azure-5.15Upgrade linux-ibm-5.4Upgrade linux-oracle-5.4Upgrade linux-lowlatencyUpgrade linux-hwe-5.15Upgrade linux-azure-fipsUpgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-gkeopUpgrade linux-aws-5.15Upgrade linux-oracle-5.15Upgrade linux-gkeUpgrade linux-azureUpgrade linux-raspiUpgrade linux-aws-5.4Upgrade linux-iot | Jun 26, 2025 | Jun 18, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 18, 2025 |
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