AZL-113317
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-113317.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-113317
- Upstream
- Published
- 2026-11-10T19:22:32Z
- Modified
- 2026-11-11T14:17:33Z
- Summary
- CVE-2026-99287 affecting package kernel 6.6.161.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
xen-netback: Zero out sring pointers on unmap
If xenvif_map_frontend_data_rings() fails when a ring is already mapped, it unmaps them via xenvif_unmap_frontend_data_rings() which keeps the ring pointers unchanged. xenvif_connect_data()'s cleanup path calls xenvif_disconnect_queue() which in turn calls xenvif_unmap_frontend_data_rings() again, which will attempt to unmap the pointers a second time.
Zero out the ring pointers after they are unmapped to avoid this issue.
This is XSA-532
- References