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BUG: KMSAN: uninit-value in ____bpf_skb_load_helper_8 net/core/filter.c:184 [inline]
BUG: KMSAN: uninit-value in bpf_skb_load_helper_8+0xe0/0x290 net/core/filter.c:178
CPU: 1 PID: 8861 Comm: syz-executor.0 Not tainted 5.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x220 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
 ____bpf_skb_load_helper_8 net/core/filter.c:184 [inline]
 bpf_skb_load_helper_8+0xe0/0x290 net/core/filter.c:178
 ___bpf_prog_run+0x214d/0x97a0 kernel/bpf/core.c:1516
 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681
 bpf_dispatcher_nop_func include/linux/bpf.h:545 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:599 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:721 [inline]
 run_filter net/packet/af_packet.c:2012 [inline]
 packet_rcv+0x70f/0x2160 net/packet/af_packet.c:2085
 dev_queue_xmit_nit+0x1199/0x1270 net/core/dev.c:2276
 xmit_one net/core/dev.c:3473 [inline]
 dev_hard_start_xmit+0x20f/0xab0 net/core/dev.c:3493
 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4052
 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4085
 hsr_xmit net/hsr/hsr_forward.c:228 [inline]
 hsr_forward_do net/hsr/hsr_forward.c:285 [inline]
 hsr_forward_skb+0x2614/0x30d0 net/hsr/hsr_forward.c:361
 send_hsr_supervision_frame+0x10a7/0x1500 net/hsr/hsr_device.c:304
 hsr_announce+0x1e2/0x370 net/hsr/hsr_device.c:332
 call_timer_fn+0x218/0x510 kernel/time/timer.c:1405
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers+0xcff/0x1210 kernel/time/timer.c:1774
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1787
 __do_softirq+0x311/0x83d kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:375 [inline]
 irq_exit+0x230/0x280 kernel/softirq.c:416
 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:546
 smp_apic_timer_interrupt+0x48/0x70 arch/x86/kernel/apic/apic.c:1143
 apic_timer_interrupt+0x2e/0x40 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:kmsan_internal_is_vmalloc_addr+0x21/0x30 mm/kmsan/kmsan.c:546
Code: c0 5d c3 66 0f 1f 44 00 00 55 48 89 e5 48 8b 05 65 69 84 0d 48 39 f8 0f 96 c1 48 ba ff ff ff ff ff 07 00 00 48 01 c2 48 39 fa <0f> 97 c0 20 c8 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 81 ff
RSP: 0018:ffffb44d0386f548 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff13
RAX: ffffb44d00000000 RBX: ffffffffa34fb200 RCX: 0000000000000001
RDX: ffffbc4cffffffff RSI: 0000000000000008 RDI: ffffffffa34fb200
RBP: ffffb44d0386f548 R08: 800000005a12b000 R09: ffffffffffffffff
R10: 0000000000000000 R11: ffffffffffffffff R12: 000000ffffffffff
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 kmsan_get_metadata+0x29/0x180 mm/kmsan/kmsan_shadow.c:186
 kmsan_get_shadow_origin_ptr+0x6c/0xb0 mm/kmsan/kmsan_shadow.c:149
 __msan_metadata_ptr_for_load_8+0x10/0x20 mm/kmsan/kmsan_instr.c:55
 vm_normal_page+0x120/0x490 mm/memory.c:635
 copy_one_pte mm/memory.c:801 [inline]
 copy_pte_range mm/memory.c:854 [inline]
 copy_pmd_range mm/memory.c:905 [inline]
 copy_pud_range mm/memory.c:939 [inline]
 copy_p4d_range mm/memory.c:961 [inline]
 copy_page_range+0x1def/0x39a0 mm/memory.c:1023
 dup_mmap+0x126c/0x1d20 kernel/fork.c:608
 dup_mm+0x1f2/0x710 kernel/fork.c:1365
 copy_mm kernel/fork.c:1421 [inline]
 copy_process+0x4bd8/0x9cb0 kernel/fork.c:2087
 _do_fork+0x24f/0xfb0 kernel/fork.c:2432
 __do_sys_clone kernel/fork.c:2587 [inline]
 __se_sys_clone+0x383/0x3d0 kernel/fork.c:2568
 __x64_sys_clone+0x62/0x80 kernel/fork.c:2568
 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45b05a
Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00
RSP: 002b:0000000000c9fd60 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000c9fd60 RCX: 000000000045b05a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000c9fda0 R08: 0000000000000001 R09: 0000000001079940
R10: 0000000001079c10 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000c9fdf0

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
 kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310
 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165
 ___bpf_prog_run+0x6cbe/0x97a0 kernel/bpf/core.c:1391
 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681
 bpf_dispatcher_nop_func include/linux/bpf.h:545 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:599 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:721 [inline]
 run_filter net/packet/af_packet.c:2012 [inline]
 packet_rcv+0x70f/0x2160 net/packet/af_packet.c:2085
 dev_queue_xmit_nit+0x1199/0x1270 net/core/dev.c:2276
 xmit_one net/core/dev.c:3473 [inline]
 dev_hard_start_xmit+0x20f/0xab0 net/core/dev.c:3493
 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4052
 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4085
 hsr_xmit net/hsr/hsr_forward.c:228 [inline]
 hsr_forward_do net/hsr/hsr_forward.c:285 [inline]
 hsr_forward_skb+0x2614/0x30d0 net/hsr/hsr_forward.c:361
 send_hsr_supervision_frame+0x10a7/0x1500 net/hsr/hsr_device.c:304
 hsr_announce+0x1e2/0x370 net/hsr/hsr_device.c:332
 call_timer_fn+0x218/0x510 kernel/time/timer.c:1405
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers+0xcff/0x1210 kernel/time/timer.c:1774
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1787
 __do_softirq+0x311/0x83d kernel/softirq.c:293

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
 kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310
 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:165
 ___bpf_prog_run+0x6c64/0x97a0 kernel/bpf/core.c:1391
 __bpf_prog_run32+0x101/0x170 kernel/bpf/core.c:1681
 bpf_dispatcher_nop_func include/linux/bpf.h:545 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:599 [inline]
 bpf_prog_run_clear_cb include/linux/filter.h:721 [inline]
 run_filter net/packet/af_packet.c:2012 [inline]
 packet_rcv+0x70f/0x2160 net/packet/af_packet.c:2085
 dev_queue_xmit_nit+0x1199/0x1270 net/core/dev.c:2276
 xmit_one net/core/dev.c:3473 [inline]
 dev_hard_start_xmit+0x20f/0xab0 net/core/dev.c:3493
 __dev_queue_xmit+0x2f8d/0x3b20 net/core/dev.c:4052
 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4085
 hsr_xmit net/hsr/hsr_forward.c:228 [inline]
 hsr_forward_do net/hsr/hsr_forward.c:285 [inline]
 hsr_forward_skb+0x2614/0x30d0 net/hsr/hsr_forward.c:361
 send_hsr_supervision_frame+0x10a7/0x1500 net/hsr/hsr_device.c:304
 hsr_announce+0x1e2/0x370 net/hsr/hsr_device.c:332
 call_timer_fn+0x218/0x510 kernel/time/timer.c:1405
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers+0xcff/0x1210 kernel/time/timer.c:1774
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1787
 __do_softirq+0x311/0x83d kernel/softirq.c:293

Local variable ----regs@__bpf_prog_run32 created at:
 __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681
 __bpf_prog_run32+0x87/0x170 kernel/bpf/core.c:1681
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