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BUG: KMSAN: uninit-value in f2fs_lookup+0xe05/0x1a80 fs/f2fs/namei.c:503
CPU: 0 PID: 13363 Comm: syz-executor.5 Not tainted 5.9.0-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+0x21c/0x280 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:122
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:219
 f2fs_lookup+0xe05/0x1a80 fs/f2fs/namei.c:503
 __lookup_slow+0x616/0x810 fs/namei.c:1544
 lookup_slow fs/namei.c:1561 [inline]
 walk_component+0x70a/0xbb0 fs/namei.c:1860
 lookup_last fs/namei.c:2309 [inline]
 path_lookupat+0x34f/0x1100 fs/namei.c:2333
 filename_lookup+0x313/0xc40 fs/namei.c:2366
 user_path_at_empty+0x123/0x140 fs/namei.c:2646
 user_path_at include/linux/namei.h:59 [inline]
 do_sys_truncate fs/open.c:131 [inline]
 __do_compat_sys_truncate fs/open.c:151 [inline]
 __se_compat_sys_truncate+0x111/0x2d0 fs/open.c:149
 __ia32_compat_sys_truncate+0x3e/0x60 fs/open.c:149
 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline]
 __do_fast_syscall_32+0x129/0x180 arch/x86/entry/common.c:139
 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:162
 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:205
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fb0549
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f55680cc EFLAGS: 00000296 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 0000000020000400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Local variable ----page@f2fs_lookup created at:
 f2fs_lookup+0x8f/0x1a80 fs/f2fs/namei.c:477
 f2fs_lookup+0x8f/0x1a80 fs/f2fs/namei.c:477
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