ERROR: (device loop0): dbAllocAG: allocation request is larger than the allocation group size
ERROR: (device loop0): dbDiscardAG: -EIO
ERROR: (device loop0): dbAllocAG: allocation request is larger than the allocation group size
ERROR: (device loop0): dbDiscardAG: -EIO
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:1567:12
index 128 is out of range for type 's64 [128]'
CPU: 0 PID: 2794 Comm: syz-executor.0 Not tainted 6.1.0-rc1-syzkaller-00158-g440b7895c990 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __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_out_of_bounds+0xdb/0x130 lib/ubsan.c:283
 dbDiscardAG+0x9d6/0xa50 fs/jfs/jfs_dmap.c:1567
 jfs_ioc_trim+0x433/0x660 fs/jfs/jfs_discard.c:100
 jfs_ioctl+0x2bd/0x3d0 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 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: 0033:0x7f4c63c8b5f9
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:00007f4c64d33168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4c63dabf80 RCX: 00007f4c63c8b5f9
RDX: 0000000020000140 RSI: 00000000c0185879 RDI: 0000000000000004
RBP: 00007f4c63ce67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcddec31bf R14: 00007f4c64d33300 R15: 0000000000022000
 </TASK>
================================================================================