and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/minix/inode.c:399:57 shift exponent 22784 is too large for 64-bit type 'unsigned long' CPU: 0 UID: 0 PID: 5308 Comm: syz-executor857 Not tainted 6.14.0-rc7-syzkaller-00050-gfc444ada1310 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 minix_statfs+0x36d/0x380 fs/minix/inode.c:399 statfs_by_dentry fs/statfs.c:66 [inline] vfs_get_fsid+0x19b/0x2a0 fs/statfs.c:77 fanotify_test_fsid+0xb5/0x470 fs/notify/fanotify/fanotify_user.c:1649 do_fanotify_mark+0x81b/0xea0 fs/notify/fanotify/fanotify_user.c:1929 __do_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2007 [inline] __se_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2003 [inline] __x64_sys_fanotify_mark+0xb5/0xd0 fs/notify/fanotify/fanotify_user.c:2003 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0a56974b19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff64c073a8 EFLAGS: 00000246 ORIG_RAX: 000000000000012d RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0a56974b19 RDX: 000000000800003e RSI: 0000000000000001 RDI: 0000000000000005 RBP: 00007f0a569e85f0 R08: 0000000000000000 R09: 00005555758c24c0 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fff64c073d0 R13: 00007fff64c075f8 R14: 431bde82d7b634db R15: 00007f0a569bd03b ---[ end trace ]---