------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2257:2
index 62914560 is out of range for type 's64[128]' (aka 'long long[128]')
CPU: 1 UID: 0 PID: 7668 Comm: syz.9.373 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 ubsan_epilogue+0xa/0x40
 __ubsan_handle_out_of_bounds+0xe9/0xf0
 dbAllocBits+0xa07/0xa60
 dbAllocNear+0x2aa/0x3d0
 dbAlloc+0x933/0xba0
 extAlloc+0x54a/0xfb0
 jfs_get_block+0x346/0xab0
 __blockdev_direct_IO+0x16ff/0x3490
 jfs_direct_IO+0x119/0x220
 generic_file_direct_write+0x1db/0x3e0
 __generic_file_write_iter+0x11d/0x230
 generic_file_write_iter+0x117/0x550
 iter_file_splice_write+0x972/0x10b0
 direct_splice_actor+0x101/0x160
 splice_direct_to_actor+0x5a8/0xcc0
 do_splice_direct+0x181/0x270
 do_sendfile+0x4da/0x7e0
 __se_sys_sendfile64+0x13e/0x190
 do_syscall_64+0xfa/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f627278f7c9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f62735bb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f62729e5fa0 RCX: 00007f627278f7c9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f62727f297f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f62729e6038 R14: 00007f62729e5fa0 R15: 00007fff252d7b28
 </TASK>
---[ end trace ]---
