=====================================================
BUG: KMSAN: uninit-value in do_user_addr_fault+0x7ff/0x1f80 arch/x86/mm/fault.c:1333
 do_user_addr_fault+0x7ff/0x1f80 arch/x86/mm/fault.c:1333
 handle_page_fault arch/x86/mm/fault.c:1495 [inline]
 __exc_page_fault+0x92/0x1c0 arch/x86/mm/fault.c:1551
 exc_page_fault+0x25/0x30 arch/x86/mm/fault.c:1507
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:605

Local variable ----regs@__bpf_prog_run32 created at:
 __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:1741
 bpf_dispatcher_nop_func include/linux/bpf.h:684 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1780 [inline]
 bpf_trace_run6+0x220/0x4d0 kernel/trace/bpf_trace.c:1821
=====================================================
Kernel panic - not syncing: panic_on_kmsan set ...
CPU: 0 PID: 1032 Comm: syz-executor.1 Tainted: G    B   W         5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x25a/0x2f6 lib/dump_stack.c:120
 panic+0x4c7/0xe98 kernel/panic.c:231
 kmsan_report+0x2ee/0x300 mm/kmsan/report.c:179
 __msan_warning+0xd7/0x150 mm/kmsan/instrumentation.c:208
 do_user_addr_fault+0x7ff/0x1f80 arch/x86/mm/fault.c:1333
 handle_page_fault arch/x86/mm/fault.c:1495 [inline]
 __exc_page_fault+0x92/0x1c0 arch/x86/mm/fault.c:1551
 exc_page_fault+0x25/0x30 arch/x86/mm/fault.c:1507
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:605
RIP: 0023:0xf6f83ad0
Code: Unable to access opcode bytes at RIP 0xf6f83aa6.
RSP: 002b:00000000f451a61c EFLAGS: 00010202
RAX: fffffffffffffff5 RBX: 00000000f7055000 RCX: 0000000020001340
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..