netlink: 4 bytes leftover after parsing attributes in process `syz.0.0'.
loop0: detected capacity change from 0 to 32768
ERROR: (device loop0): diAllocBit: iag inconsistent
ialloc: diAlloc returned -5!
BUG at fs/jfs/jfs_dmap.c:3021 assert(nb <= DBWORD)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:3021!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3021
Code: e9 20 ff ff ff e8 09 9f 7a fe 48 c7 c7 40 87 a4 8b 48 c7 c6 80 84 a4 8b ba cd 0b 00 00 48 c7 c1 00 8f a4 8b e8 aa dc e1 fd 90 <0f> 0b e8 e2 9e 7a fe 48 c7 c7 40 87 a4 8b 48 c7 c6 80 84 a4 8b ba
RSP: 0018:ffffc9000d28fa98 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 000000000000000a RCX: 651ba737733ae300
RDX: ffffc9000e89b000 RSI: 0000000000000c8c RDI: 0000000000000c8d
RBP: 00000000ffffffff R08: ffffc9000d28f7c7 R09: 1ffff92001a51ef8
R10: dffffc0000000000 R11: fffff52001a51ef9 R12: 0000000000000000
R13: 000000000000000a R14: 0000000000000400 R15: ffff88800072a000
FS:  00007f2af119f6c0(0000) GS:ffff88808d300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf227909c0 CR3: 000000003f7ff000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1985
 dbAllocCtl+0x14a/0x9c0 fs/jfs/jfs_dmap.c:1825
 dbAllocAG+0x1e6/0xff0 fs/jfs/jfs_dmap.c:1353
 dbDiscardAG+0x2df/0x900 fs/jfs/jfs_dmap.c:1608
 jfs_ioc_trim+0x429/0x690 fs/jfs/jfs_discard.c:106
 jfs_ioctl+0x2b5/0x3d0 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2af038efc9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2af119f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2af05e6090 RCX: 00007f2af038efc9
RDX: 0000200000000000 RSI: 00000000c0185879 RDI: 000000000000000c
RBP: 00007f2af0411f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2af05e6128 R14: 00007f2af05e6090 R15: 00007ffd09ccdf68
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3021
Code: e9 20 ff ff ff e8 09 9f 7a fe 48 c7 c7 40 87 a4 8b 48 c7 c6 80 84 a4 8b ba cd 0b 00 00 48 c7 c1 00 8f a4 8b e8 aa dc e1 fd 90 <0f> 0b e8 e2 9e 7a fe 48 c7 c7 40 87 a4 8b 48 c7 c6 80 84 a4 8b ba
RSP: 0018:ffffc9000d28fa98 EFLAGS: 00010246
RAX: 0000000000000032 RBX: 000000000000000a RCX: 651ba737733ae300
RDX: ffffc9000e89b000 RSI: 0000000000000c8c RDI: 0000000000000c8d
RBP: 00000000ffffffff R08: ffffc9000d28f7c7 R09: 1ffff92001a51ef8
R10: dffffc0000000000 R11: fffff52001a51ef9 R12: 0000000000000000
R13: 000000000000000a R14: 0000000000000400 R15: ffff88800072a000
FS:  00007f2af119f6c0(0000) GS:ffff88808d300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ae4e9a000 CR3: 000000003f7ff000 CR4: 0000000000352ef0