===================================================== BUG: KMSAN: uninit-value in __netif_receive_skb_core+0x4a4/0x6100 net/core/dev.c:5362 __netif_receive_skb_core+0x4a4/0x6100 net/core/dev.c:5362 __netif_receive_skb_list_core+0x2e7/0x1190 net/core/dev.c:5608 __netif_receive_skb_list net/core/dev.c:5675 [inline] netif_receive_skb_list_internal+0xf06/0x14e0 net/core/dev.c:5766 netif_receive_skb_list+0x5a/0x460 net/core/dev.c:5818 xdp_recv_frames net/bpf/test_run.c:276 [inline] xdp_test_run_batch net/bpf/test_run.c:354 [inline] bpf_test_run_xdp_live+0x293c/0x2e40 net/bpf/test_run.c:382 bpf_prog_test_run_xdp+0xf6d/0x1ab0 net/bpf/test_run.c:1254 bpf_prog_test_run+0x6af/0xac0 kernel/bpf/syscall.c:4040 __sys_bpf+0x649/0xd60 kernel/bpf/syscall.c:5401 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was stored to memory at: __xdp_build_skb_from_frame+0x8d2/0x9e0 net/core/xdp.c:638 xdp_recv_frames net/bpf/test_run.c:268 [inline] xdp_test_run_batch net/bpf/test_run.c:354 [inline] bpf_test_run_xdp_live+0x2627/0x2e40 net/bpf/test_run.c:382 bpf_prog_test_run_xdp+0xf6d/0x1ab0 net/bpf/test_run.c:1254 bpf_prog_test_run+0x6af/0xac0 kernel/bpf/syscall.c:4040 __sys_bpf+0x649/0xd60 kernel/bpf/syscall.c:5401 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4591 __alloc_pages_bulk+0x19e/0x1fa0 mm/page_alloc.c:4516 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x1a7/0xd80 net/core/page_pool.c:448 page_pool_alloc_pages+0x10b/0x1c0 net/core/page_pool.c:497 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:96 [inline] xdp_test_run_batch net/bpf/test_run.c:299 [inline] bpf_test_run_xdp_live+0x94a/0x2e40 net/bpf/test_run.c:382 bpf_prog_test_run_xdp+0xf6d/0x1ab0 net/bpf/test_run.c:1254 bpf_prog_test_run+0x6af/0xac0 kernel/bpf/syscall.c:4040 __sys_bpf+0x649/0xd60 kernel/bpf/syscall.c:5401 __do_sys_bpf kernel/bpf/syscall.c:5487 [inline] __se_sys_bpf kernel/bpf/syscall.c:5485 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5485 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 0 PID: 6468 Comm: syz-executor.0 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 =====================================================