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In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Validate partition index before array access
construct_region() reads cxled->part and uses it to index cxlds->part[] without checking for a negative value. If the partition was never resolved, part remains at its initial value of -1, causing an out-of-bounds array access.
Add a guard to return -EBUSY when part is negative.
The check was dropped during a merge.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linuxUpgrade linux-ibmUpgrade linux-riscv-7.0Upgrade linux-gcpUpgrade linux-riscvUpgrade linux-hwe-7.0Upgrade linux-awsUpgrade linux-oem-7.0Upgrade linux-oracle | Nov 3, 2026 | Sep 24, 2026 |
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