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BUG: KMSAN: uninit-value in do_page_fault+0x2e8/0x840 arch/x86/mm/fault.c:1552
CPU: 1 PID: 11325 Comm: systemd-udevd 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: 0033:0x7ffdcabc5650
Code: Bad RIP value.
RSP: 002b:00007ffdcaaa03d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000015
RDX: 0000000058585858 RSI: 0000000000000000 RDI: 00007ffdcaaa0400
RBP: 0000000000000000 R08: 000000000000feff R09: 0000000000000030
R10: 0000000000000000 R11: 0000000000000202 R12: 0000562696d75985
R13: 00007ffdcaaa0558 R14: 0000000000080000 R15: 0000562696d75970

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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