================================================================================ UBSAN: shift-out-of-bounds in fs/minix/inode.c:380:57 shift exponent 2047 is too large for 64-bit type 'unsigned long' CPU: 1 PID: 6916 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-00029-g3800a713b607 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x33d/0x3b0 lib/ubsan.c:322 minix_statfs+0x363/0x370 fs/minix/inode.c:380 statfs_by_dentry fs/statfs.c:66 [inline] vfs_statfs+0x136/0x310 fs/statfs.c:90 ovl_check_namelen fs/overlayfs/super.c:915 [inline] ovl_get_upper+0x13a/0x5d0 fs/overlayfs/super.c:1207 ovl_fill_super+0x1522/0x2790 fs/overlayfs/super.c:2061 mount_nodev+0x52/0xe0 fs/super.c:1446 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6dccc8a669 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f6dcdddd168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6dccdabf80 RCX: 00007f6dccc8a669 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f6dccce5560 R08: 0000000020000280 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf452f76f R14: 00007f6dcdddd300 R15: 0000000000022000 ================================================================================