------------[ cut here ]------------
lp >= size || lp < 0
WARNING: fs/jfs/jfs_dmap.c:2875 at dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875, CPU#1: syz.3.1007/14132
Modules linked in:
CPU: 1 UID: 0 PID: 14132 Comm: syz.3.1007 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875
Code: 5a ff ff ff e8 bd 85 73 fe eb 05 e8 b6 85 73 fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 43 a1 d5 07 cc e8 9d 85 73 fe 90 <0f> 0b 90 eb e1 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e1 fb ff ff
RSP: 0018:ffffc9000571eb60 EFLAGS: 00010283
RAX: ffffffff8350e163 RBX: ffff888064302010 RCX: 0000000000080000
RDX: ffffc90013b21000 RSI: 000000000000736a RDI: 000000000000736b
RBP: 0000000000002057 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff94000321811 R12: ffff888064302018
R13: dffffc0000000000 R14: 0000000000000005 R15: 0000000000000155
FS:  00007ff293c4e6c0(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f59d31b0000 CR3: 000000003e81a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dbSplit+0x132/0x200 fs/jfs/jfs_dmap.c:2648
 dbAllocBits+0x502/0xa60 fs/jfs/jfs_dmap.c:2193
 dbAllocDmap+0x6b/0x150 fs/jfs/jfs_dmap.c:2034
 dbAlloc+0x46c/0xba0 fs/jfs/jfs_dmap.c:805
 extBalloc fs/jfs/jfs_extent.c:336 [inline]
 extAlloc+0x57d/0x1020 fs/jfs/jfs_extent.c:127
 jfs_get_block+0x358/0xad0 fs/jfs/inode.c:254
 get_more_blocks fs/direct-io.c:648 [inline]
 do_direct_IO fs/direct-io.c:936 [inline]
 __blockdev_direct_IO+0x1671/0x3330 fs/direct-io.c:1243
 blockdev_direct_IO include/linux/fs.h:3114 [inline]
 jfs_direct_IO+0x11b/0x220 fs/jfs/inode.c:339
 generic_file_direct_write+0x1dc/0x3e0 mm/filemap.c:4253
 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4422
 generic_file_write_iter+0x14b/0x690 mm/filemap.c:4462
 iter_file_splice_write+0x9a6/0x10f0 fs/splice.c:736
 do_splice_from fs/splice.c:936 [inline]
 direct_splice_actor+0x104/0x160 fs/splice.c:1159
 splice_direct_to_actor+0x545/0xc80 fs/splice.c:1103
 do_splice_direct_actor fs/splice.c:1202 [inline]
 do_splice_direct+0x19b/0x2a0 fs/splice.c:1228
 do_sendfile+0x547/0x7e0 fs/read_write.c:1372
 __do_sys_sendfile64 fs/read_write.c:1433 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1419
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff2959fc799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff293c4e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007ff295c75fa0 RCX: 00007ff2959fc799
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: 00007ff295a92c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff295c76038 R14: 00007ff295c75fa0 R15: 00007ffe8ebb11a8
 </TASK>