================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2786:11 shift exponent 78 is too large for 32-bit type 'int' CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc2-syzkaller-00244-g27bbf45eae9c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b5/0x2a0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x35f/0x3c0 lib/ubsan.c:387 dbJoin+0x2c0/0x2d0 fs/jfs/jfs_dmap.c:2786 dbAdjCtl+0x3a1/0x9a0 fs/jfs/jfs_dmap.c:2526 dbFree+0x3ac/0x650 fs/jfs/jfs_dmap.c:2090 txFreeMap+0x96a/0xd50 fs/jfs/jfs_txnmgr.c:2515 xtTruncate+0xe31/0x3230 fs/jfs/jfs_xtree.c:2467 jfs_free_zero_link+0x418/0x660 fs/jfs/namei.c:758 jfs_evict_inode+0x35f/0x440 fs/jfs/inode.c:153 evict+0x2a4/0x620 fs/inode.c:664 txUpdateMap+0x851/0xa00 fs/jfs/jfs_txnmgr.c:2367 jfs_lazycommit+0x47a/0xb80 fs/jfs/jfs_txnmgr.c:2664 kthread+0x2cd/0x360 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 ================================================================================