Ubuntu kernel update addresses flaws that could compromise the system
USN-9027-1 covers x86, hardware monitoring, OCFS2, IPv4, Ethernet bridge, Netfilter and XFRM flaws.
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CVE-2026-63940
- CVSS 3.1
- 9.3 critical
- EPSS
- <1%p8
- Published
- ·
- Modified
Description · NVD
In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.
- Vendors
- linux
- Products
- linux kernel
- Weakness
- CWE-191, CWE-190
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H