bpf/bonding: reject vlan+srcmac xmit_hash_policy change when XDP is loaded

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CVE-2026-23310

In the Linux kernel, the following vulnerability has been resolved: bpf/bonding: reject vlan+srcmac xmithashpolicy change when XDP is loaded bondoptionmodeset already rejects mode changes that would make a loaded XDP program incompatible via bondxdpcheck. However, bondoptionxmithashpolicyset has ...

CVE-2026-23310

In the Linux kernel, the following vulnerability has been resolved: bpf/bonding: reject vlan+srcmac xmithashpolicy change when XDP is loaded bondoptionmodeset already rejects mode changes that would make a loaded XDP program incompatible via bondxdpcheck. However, bondoptionxmithashpolicyset has ...

CVE-2026-23310

Summary: CVE-2026-23310 affects the Linux kernel bonding/kern XDP path. If a bond is in 802.3ad or balance-xor mode and an XDP program is loaded, changing xmit_hash_policy to vlan+srcmac can escape the existing guard, leaving bond->xdp_prog set and causing an incompatible state during tear-dow...