=====================================================
BUG: KMSAN: uninit-value in vmacache_find+0x928/0xa10 mm/vmacache.c:79
 vmacache_find+0x928/0xa10 mm/vmacache.c:79
 find_vma+0x7b/0x380 mm/mmap.c:2276
 do_user_addr_fault+0xc27/0x1f20 arch/x86/mm/fault.c:1379
 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: 9040 Comm: syz-executor.3 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: 9040 Comm: syz-executor.3 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
 vmacache_find+0x928/0xa10 mm/vmacache.c:79
 find_vma+0x7b/0x380 mm/mmap.c:2276
 do_user_addr_fault+0xc27/0x1f20 arch/x86/mm/fault.c:1379
 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: 0023:0xf6e62520
Code: 8d 93 e4 66 00 00 c7 83 18 6a 00 00 00 00 00 00 0f b7 00 66 3b 02 74 aa 83 ec 0c 50 e8 b9 c7 00 00 83 c4 10 eb 9c 66 90 66 90 <e8> 00 c3 fa ff 81 c2 db 3a 0d 00 f7 d8 c7 c2 dc ff ff ff 65 89 02
RSP: 002b:00000000f7f785ec EFLAGS: 00010206
RAX: fffffffffffffff7 RBX: 00000000f6f36000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	8d 93 e4 66 00 00    	lea    0x66e4(%rbx),%edx
   6:	c7 83 18 6a 00 00 00 	movl   $0x0,0x6a18(%rbx)
   d:	00 00 00
  10:	0f b7 00             	movzwl (%rax),%eax
  13:	66 3b 02             	cmp    (%rdx),%ax
  16:	74 aa                	je     0xffffffc2
  18:	83 ec 0c             	sub    $0xc,%esp
  1b:	50                   	push   %rax
  1c:	e8 b9 c7 00 00       	callq  0xc7da
  21:	83 c4 10             	add    $0x10,%esp
  24:	eb 9c                	jmp    0xffffffc2
  26:	66 90                	xchg   %ax,%ax
  28:	66 90                	xchg   %ax,%ax
* 2a:	e8 00 c3 fa ff       	callq  0xfffac32f <-- trapping instruction
  2f:	81 c2 db 3a 0d 00    	add    $0xd3adb,%edx
  35:	f7 d8                	neg    %eax
  37:	c7 c2 dc ff ff ff    	mov    $0xffffffdc,%edx
  3d:	65 89 02             	mov    %eax,%gs:(%rdx)