------------[ cut here ]------------
lp >= size || lp < 0
WARNING: fs/jfs/jfs_dmap.c:2875 at dbAdjTree+0x454/0x4e0, CPU#1: syz.4.2692/20372
Modules linked in:
CPU: 1 UID: 0 PID: 20372 Comm: syz.4.2692 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:dbAdjTree+0x454/0x4e0
Code: 5a ff ff ff e8 4d 1b 74 fe eb 05 e8 46 1b 74 fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 2d 1b 74 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:ffffc90007e3e0a0 EFLAGS: 00010293
RAX: ffffffff834e7ec3 RBX: ffff888166786010 RCX: ffff888100f08000
RDX: 0000000000000000 RSI: 0000000000000155 RDI: 0000000000002057
RBP: 0000000000002057 R08: 0000000000000000 R09: 1ffffd4000b33c30
R10: dffffc0000000000 R11: fffff94000b33c31 R12: ffff888166786018
R13: dffffc0000000000 R14: 0000000000000005 R15: 0000000000000155
FS:  00007fb2b97b06c0(0000) GS:ffff8882a9924000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000200 CR3: 00000001062ce000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dbSplit+0x132/0x200
 dbAllocBits+0x502/0xa60
 dbAllocDmap+0x6b/0x150
 dbAlloc+0x46c/0xba0
 extAlloc+0x57d/0x1020
 jfs_get_block+0x358/0xad0
 __block_write_begin_int+0x6c6/0x1910
 block_write_begin+0x8d/0x120
 jfs_write_begin+0x35/0x80
 generic_perform_write+0x2e2/0x8f0
 generic_file_write_iter+0x14a/0x680
 __kernel_write_iter+0x41e/0x880
 dump_user_range+0x8ba/0xc70
 elf_core_dump+0x34c2/0x3ad0
 coredump_write+0x11de/0x1980
 vfs_coredump+0x369e/0x4270
 get_signal+0x1107/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x2b7/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb2b895b58e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007fb2b97aff58 EFLAGS: 00000346 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 00007fb2b97b06c0 RCX: 00007fb2b895b58e
RDX: 00007fb2b97affb0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb2b8a08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb2b8c16038 R14: 00007fb2b8c15fa0 R15: 00007ffccddda4b8
 </TASK>
