loop0: detected capacity change from 0 to 32768
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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2222:23
index 128 is out of range for type 's64 [128]'
CPU: 1 PID: 3605 Comm: syz-executor175 Not tainted 6.0.0-rc7-syzkaller-00239-gb357fd1c2afc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:283
 dbAllocBits+0x50f/0x5f0 fs/jfs/jfs_dmap.c:2222
 dbAllocDmap+0x61/0x110 fs/jfs/jfs_dmap.c:1999
 dbAllocNext+0x34a/0x410 fs/jfs/jfs_dmap.c:1152
 dbAlloc+0x323/0xa70 fs/jfs/jfs_dmap.c:786
 extBalloc fs/jfs/jfs_extent.c:321 [inline]
 extAlloc+0x4e7/0xeb0 fs/jfs/jfs_extent.c:122
 jfs_get_block+0x661/0xa90 fs/jfs/inode.c:248
 __block_write_begin_int+0x3ca/0x1520 fs/buffer.c:2006
 __block_write_begin fs/buffer.c:2056 [inline]
 block_write_begin+0xb5/0x4d0 fs/buffer.c:2117
 jfs_write_begin+0x2d/0xd0 fs/jfs/inode.c:304
 generic_perform_write+0x246/0x560 mm/filemap.c:3738
 __generic_file_write_iter+0x2aa/0x4d0 mm/filemap.c:3866
 generic_file_write_iter+0xdf/0x350 mm/filemap.c:3898
 call_write_iter include/linux/fs.h:2187 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9e9/0xdd0 fs/read_write.c:584
 ksys_write+0x127/0x250 fs/read_write.c:637
 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: 0033:0x7f6798d71de9
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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffef7199308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6798d71de9
RDX: 000000000208e24b RSI: 0000000020000480 RDI: 0000000000000003
RBP: 00007f6798d315b0 R08: 0000000000000000 R09: 00007f6798d315b0
R10: 0000555555c5a2c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00080000000000f8 R15: 0000000000000000
 </TASK>
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