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:1567:26
index 128 is out of range for type 's64 [128]'
CPU: 1 PID: 4171 Comm: syz-executor.0 Not tainted 6.1.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
 ubsan_epilogue+0x5/0x36 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x43/0x48 lib/ubsan.c:283
 dbDiscardAG+0x670/0x710 fs/jfs/jfs_dmap.c:1567
 jfs_ioc_trim+0x329/0x5a0 fs/jfs/jfs_discard.c:100
 jfs_ioctl+0x2a9/0x370 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc90ec8b5a9
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:00007fc90faa8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc90edabf80 RCX: 00007fc90ec8b5a9
RDX: 0000000020000140 RSI: 00000000c0185879 RDI: 0000000000000003
RBP: 00007fc90ece67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdb386b63f R14: 00007fc90faa8300 R15: 0000000000022000
 </TASK>
================================================================================