=====================================================
BUG: KMSAN: uninit-value in do_user_addr_fault+0x860/0x1f20 arch/x86/mm/fault.c:1341
 do_user_addr_fault+0x860/0x1f20 arch/x86/mm/fault.c:1341
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x61/0x140 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x1e/0x30

Local variable regs created at:
 __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:2073
 bpf_dispatcher_nop_func include/linux/bpf.h:804 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2022 [inline]
 bpf_trace_run2+0x129/0x380 kernel/trace/bpf_trace.c:2059

CPU: 1 PID: 15760 Comm: udevd Not tainted 5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================
Kernel panic - not syncing: kmsan.panic set ...
CPU: 1 PID: 15760 Comm: udevd Tainted: G    B             5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106
 dump_stack+0x25/0x28 lib/dump_stack.c:113
 panic+0x4fe/0xc73 kernel/panic.c:250
 kmsan_report+0x2cd/0x2d0 mm/kmsan/report.c:208
 __msan_warning+0x94/0x110 mm/kmsan/instrumentation.c:256
 do_user_addr_fault+0x860/0x1f20 arch/x86/mm/fault.c:1341
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x61/0x140 arch/x86/mm/fault.c:1561
 asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x7f263e8787f0
Code: Unable to access opcode bytes at RIP 0x7f263e8787c6.
RSP: 002b:00007fffcd5d83b8 EFLAGS: 00010207
RAX: 0000000000000000 RBX: 0000558b509b9040 RCX: 00007f263e925fc3
RDX: 00007f263e9f5a60 RSI: 0000000000000000 RDI: 00007fffcd5d8428
RBP: 0000558b50a35130 R08: 0000000000000007 R09: 0000558b50a0fd00
R10: 00000000ffffffff R11: 0000000000000246 R12: 0000558b50a35430
R13: 00007fffcd5d8428 R14: 0000000000000000 R15: 0000558b50a0f910
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..