===================================================== BUG: KMSAN: uninit-value in __netif_receive_skb_core+0x4a4/0x6190 net/core/dev.c:5368 __netif_receive_skb_core+0x4a4/0x6190 net/core/dev.c:5368 __netif_receive_skb_list_core+0x31e/0x1670 net/core/dev.c:5614 __netif_receive_skb_list net/core/dev.c:5681 [inline] netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:5773 netif_receive_skb_list+0x5a/0x460 net/core/dev.c:5825 xdp_recv_frames net/bpf/test_run.c:278 [inline] xdp_test_run_batch net/bpf/test_run.c:356 [inline] bpf_test_run_xdp_live+0x2a56/0x2f70 net/bpf/test_run.c:384 bpf_prog_test_run_xdp+0xf02/0x1a40 net/bpf/test_run.c:1267 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 ia32_sys_call+0xf7e/0x40a0 arch/x86/include/generated/asm/syscalls_32.h:358 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Uninit was stored to memory at: __xdp_build_skb_from_frame+0x8d7/0x9e0 net/core/xdp.c:639 xdp_recv_frames net/bpf/test_run.c:270 [inline] xdp_test_run_batch net/bpf/test_run.c:356 [inline] bpf_test_run_xdp_live+0x262a/0x2f70 net/bpf/test_run.c:384 bpf_prog_test_run_xdp+0xf02/0x1a40 net/bpf/test_run.c:1267 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 ia32_sys_call+0xf7e/0x40a0 arch/x86/include/generated/asm/syscalls_32.h:358 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_bulk+0x19e/0x21e0 mm/page_alloc.c:4523 alloc_pages_bulk_array_node include/linux/gfp.h:211 [inline] __page_pool_alloc_pages_slow+0x1ad/0xdc0 net/core/page_pool.c:500 page_pool_alloc_pages+0x10b/0x1c0 net/core/page_pool.c:549 page_pool_dev_alloc_pages include/net/page_pool/helpers.h:92 [inline] xdp_test_run_batch net/bpf/test_run.c:301 [inline] bpf_test_run_xdp_live+0x937/0x2f70 net/bpf/test_run.c:384 bpf_prog_test_run_xdp+0xf02/0x1a40 net/bpf/test_run.c:1267 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 ia32_sys_call+0xf7e/0x40a0 arch/x86/include/generated/asm/syscalls_32.h:358 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x84/0x8e CPU: 0 PID: 9731 Comm: syz-executor.0 Not tainted 6.9.0-rc3-syzkaller-00355-g7efd0a74039f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 =====================================================