CVE-2026-63830

A flaw was found in the Linux kernel's skmsg networking component. This vulnerability arises when the sg.copy bitmap, which controls memory access permissions, is not properly maintained during data transformations. This can allow a local attacker to bypass memory protection mechanisms, enabling...

CVE-2026-63830 net: skmsg: preserve sg.copy across SG transforms

In the Linux kernel, the following vulnerability has been resolved: net: skmsg: preserve sg.copy across SG transforms The skmsg sg.copy bitmap is part of the scatterlist entry ownership state. A set bit tells skmsgcomputedatapointers not to expose the entry through writable BPF ctx-data. This...