Description
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix undefined behavior in devid_write debugfs function When for_each_pci_segment() loop completes without finding a matching segment, the pci_seg pointer is not NULL but points to an invalid memory location (the list head). Accessing pci_seg->id after the loop causes undefined behavior. Fix this by handling the successful case inside the loop and returning -EINVAL after the loop if no matching segment is found.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
2e98940f123d9c69d4759078aea9a536244c98d3 to < 8aabe0fba01486b5d893e708b05a8fa7f1b7efbbaffected2e98940f123d9c69d4759078aea9a536244c98d3 to < 99d42aef089a07cfb1d404a7227ac9dc7628b497affected2e98940f123d9c69d4759078aea9a536244c98d3 to < 843e149989665f8309ad2efe6048dc76591e1f94affected
Linux Linux
Default version status: affected
6.17affected0 to < 6.17unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected