jfs_lookup: iget failed on inum 4
jfs_lookup: iget failed on inum 4
netlink: 40 bytes leftover after parsing attributes in process `syz.2.44'.
------------[ cut here ]------------
lp >= size || lp < 0
WARNING: fs/jfs/jfs_dmap.c:2962 at dbAdjTree+0x3ac/0x430 fs/jfs/jfs_dmap.c:2962, CPU#1: syz.2.44/6022
Modules linked in:
CPU: 1 UID: 0 PID: 6022 Comm: syz.2.44 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
RIP: 0010:dbAdjTree+0x3ac/0x430 fs/jfs/jfs_dmap.c:2962
Code: 58 fe eb 0c e8 d5 81 58 fe eb 05 e8 ce 81 58 fe 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 76 b3 a0 fd cc e8 b5 81 58 fe 90 <0f> 0b 90 eb e1 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 8c fc ff ff
RSP: 0018:ffffc90005597468 EFLAGS: 00010287
RAX: ffffffff836f8d9b RBX: 0000000000002057 RCX: 0000000000080000
RDX: ffffc90004382000 RSI: 000000000000c4ab RDI: 000000000000c4ac
RBP: 0000000000000005 R08: 0000000000000000 R09: 1ffffd40003e8f30
R10: dffffc0000000000 R11: fffff940003e8f31 R12: ffff88807d1e6018
R13: dffffc0000000000 R14: ffff88807d1e6010 R15: 0000000000000155
FS:  00007f9df7a856c0(0000) GS:ffff888124dc7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 0000000035e57000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 dbSplit+0x132/0x200 fs/jfs/jfs_dmap.c:2735
 dbAllocBits+0x4c4/0xa00 fs/jfs/jfs_dmap.c:2280
 dbAllocDmap+0x64/0x140 fs/jfs/jfs_dmap.c:2121
 dbAlloc+0x46c/0xba0 fs/jfs/jfs_dmap.c:892
 extBalloc fs/jfs/jfs_extent.c:336 [inline]
 extAlloc+0x57d/0x1010 fs/jfs/jfs_extent.c:127
 jfs_get_block+0x351/0xad0 fs/jfs/inode.c:254
 __block_write_begin_int+0x6c2/0x1900 fs/buffer.c:2030
 block_write_begin+0x8d/0x120 fs/buffer.c:2144
 jfs_write_begin+0x35/0x80 fs/jfs/inode.c:306
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 generic_file_write_iter+0xae/0x330 mm/filemap.c:4517
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9df6b9e159
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:00007f9df7a85028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9df6e25fa0 RCX: 00007f9df6b9e159
RDX: 0000000000010448 RSI: 0000200000000080 RDI: 000000000000000a
RBP: 00007f9df6c3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9df6e26038 R14: 00007f9df6e25fa0 R15: 00007ffd913b8e48
 </TASK>