CVE-2026-45933

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve id of register in synclinkedregs synclinkedregs copies the id of knownreg to reg when propagating bounds of knownreg to reg using the off of knownreg, but when knownreg was linked to reg like: knownreg = reg ; both...

CVE-2026-45933

CVE-2026-45933 affects the Linux kernel BPF verifier. The root cause is that sync_linked_regs() failed to preserve the register ID during bounds propagation, so when known_reg bounds were propagated to reg, reg retained an old/new id mismatch. This can cause incorrect bound propagation across lin...