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UBSAN: shift-out-of-bounds in lib/radix-tree.c:88:31
shift exponent 240 is too large for 64-bit type 'unsigned long'
CPU: 0 UID: 0 PID: 5331 Comm: syz-executor299 Not tainted 6.14.0-rc2-syzkaller-00228-g04f41cbf03ec #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:
 <TASK>
 __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
 radix_tree_descend lib/radix-tree.c:88 [inline]
 __radix_tree_lookup lib/radix-tree.c:766 [inline]
 radix_tree_delete_item+0x1df/0x3f0 lib/radix-tree.c:1420
 kernfs_put+0x1ba/0x370 fs/kernfs/dir.c:575
 __kernfs_remove+0x768/0x870 fs/kernfs/dir.c:1509
 kernfs_remove+0x7a/0xa0 fs/kernfs/dir.c:1529
 __kobject_del+0xe2/0x310 lib/kobject.c:604
 kobject_del+0x45/0x60 lib/kobject.c:627
 __bch2_fs_stop+0x288/0x5c0 fs/bcachefs/super.c:641
 bch2_fs_stop+0x15/0x20 fs/bcachefs/super.c:691
 bch2_fs_get_tree+0xdee/0x17a0 fs/bcachefs/fs.c:2299
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 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: 0033:0x7f17e484402a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f17e3fe7fd8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f17e3fe7ff0 RCX: 00007f17e484402a
RDX: 00004000000058c0 RSI: 0000400000005900 RDI: 00007f17e3fe7ff0
RBP: 0000400000005900 R08: 00007f17e3fe8030 R09: 0000000000005931
R10: 0000000000010000 R11: 0000000000000282 R12: 00004000000058c0
R13: 00007f17e3fe8030 R14: 0000000000000003 R15: 0000000000010000
 </TASK>
---[ end trace ]---