===================================================== BUG: KMSAN: uninit-value in may_create_in_sticky fs/namei.c:1074 [inline] BUG: KMSAN: uninit-value in do_open fs/namei.c:3221 [inline] BUG: KMSAN: uninit-value in path_openat+0x48be/0x5d50 fs/namei.c:3360 CPU: 0 PID: 9901 Comm: syz-executor.0 Not tainted 5.8.0-rc5-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+0x1df/0x240 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 may_create_in_sticky fs/namei.c:1074 [inline] do_open fs/namei.c:3221 [inline] path_openat+0x48be/0x5d50 fs/namei.c:3360 do_file_open_root+0x469/0xb40 fs/namei.c:3415 file_open_root+0x6f1/0x760 fs/open.c:1159 do_handle_open+0xa11/0xe30 fs/fhandle.c:232 __do_compat_sys_open_by_handle_at fs/fhandle.c:277 [inline] __se_compat_sys_open_by_handle_at+0x8e/0xa0 fs/fhandle.c:274 __ia32_compat_sys_open_by_handle_at+0x4a/0x70 fs/fhandle.c:274 do_syscall_32_irqs_on arch/x86/entry/common.c:430 [inline] __do_fast_syscall_32+0x2aa/0x400 arch/x86/entry/common.c:477 do_fast_syscall_32+0x6b/0xd0 arch/x86/entry/common.c:505 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:554 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f13549 Code: Bad RIP value. RSP: 002b:00000000f7f0e0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000156 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000200 RDX: 0000000000002f40 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Local variable ----nd@do_file_open_root created at: do_file_open_root+0xa4/0xb40 fs/namei.c:3399 do_file_open_root+0xa4/0xb40 fs/namei.c:3399 =====================================================