find_entry called with index = 0
find_entry called with index = 0
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2639:11
shift exponent 80 is too large for 32-bit type 'int'
CPU: 0 PID: 6967 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:468
 dbSplit+0x1d4/0x1d8 fs/jfs/jfs_dmap.c:2639
 dbAllocBits+0x434/0x8d8 fs/jfs/jfs_dmap.c:2191
 dbAllocDmap fs/jfs/jfs_dmap.c:2032 [inline]
 dbAllocNear+0x224/0x334 fs/jfs/jfs_dmap.c:1258
 dbAlloc+0x8b4/0xb68 fs/jfs/jfs_dmap.c:843
 diNewExt+0x7c0/0x2904 fs/jfs/jfs_imap.c:2258
 diAllocExt fs/jfs/jfs_imap.c:1949 [inline]
 diAllocAG+0xa68/0x1b8c fs/jfs/jfs_imap.c:1666
 diAlloc+0x17c/0x15c4 fs/jfs/jfs_imap.c:1587
 ialloc+0x84/0x78c fs/jfs/jfs_inode.c:56
 jfs_mkdir+0x190/0x9f4 fs/jfs/namei.c:225
 vfs_mkdir+0x27c/0x3e4 fs/namei.c:4123
 do_mkdirat+0x248/0x574 fs/namei.c:4146
 __do_sys_mkdirat fs/namei.c:4161 [inline]
 __se_sys_mkdirat fs/namei.c:4159 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4159
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
---[ end trace ]---