net, bpf: check master for NULL in xdp_master_redirect()

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-64545 · Microsoft / collected KEV context

cve-program · CVE-2026-64545

• https://git.kernel.org/stable/c/c99ca049e910d61ddbd28cc2c47242f2bfbb4970
• https://git.kernel.org/stable/c/e2a56441233131fe18a76001de347ecda217e40c
• https://git.kernel.org/stable/c/3876318ea54e83eb70982b8280a3c5e4e32269bf
• https://git.kernel.org/stable/c/4edbcacca09f92b85d3951b6add11894b20a84bc
• https://git.kernel.org/stable/c/03b743586a2469744e96e9c1015096d07240935d
• https://git.kernel.org/stable/c/89c103d702b25ceb2d097faf854deb47b53b17ff
• https://git.kernel.org/stable/c/e82d8cc4321c373dc46e741cd2dfdaa7921fddb7

No related operational record is retained in the current change model.