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BUG: KMSAN: uninit-value in do_page_fault+0x2e8/0x840 arch/x86/mm/fault.c:1552
CPU: 0 PID: 11488 Comm: modprobe Not tainted 5.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __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
 do_page_fault+0x2e8/0x840 arch/x86/mm/fault.c:1552
 page_fault+0x4e/0x60 arch/x86/entry/entry_64.S:1213
RIP: 0033:0x7f7cb4e5948e
Code: eb 28 83 fa 02 0f 84 99 09 00 00 83 fa 03 0f 84 29 09 00 00 83 fa 01 0f 84 c6 08 00 00 48 83 c0 38 48 39 f8 0f 83 92 00 00 00 <8b> 10 83 fa 06 0f 84 32 08 00 00 76 cb 81 fa 51 e5 74 64 0f 84 4e
RSP: 002b:00007ffff01f1c80 EFLAGS: 00010287
RAX: 00005636f266d040 RBX: 00005636f266d040 RCX: 00007f7cb507c428
RDX: 0000000000000009 RSI: fffffffffffff000 RDI: 00005636f266d238
RBP: 00007ffff01f1e80 R08: 00007f7cb507c000 R09: 00007f7cb507c020
R10: 00007f7cb507c6e0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007f7cb507c170

Local variable ----regs@__bpf_prog_run32 created at:
 __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1692
 __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1692
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