BUG at fs/jfs/jfs_dmap.c:3081 assert(nb <= DBWORD)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:3081!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6858 Comm: syz.0.565 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3081
lr : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3081
sp : ffff8000202b7730
x29: ffff8000202b7730 x28: 00000000ffffffff x27: 1ffff00004056ef0
x26: dfff800000000000 x25: ffff0000eaa86800 x24: 000000000000000a
x23: 0000000000000000 x22: ffff0000c1290000 x21: 00000000ffffffff
x20: 0000000000000400 x19: 000000000000000a x18: ffff8000202b6d60
x17: 1fffe00036831b8e x16: ffff800011ac23e0 x15: 0000000000000002
x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000040000
x11: 000000000000532d x10: ffff800020eb9000 x9 : c50a9f4480e75100
x8 : c50a9f4480e75100 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a987d1c
x2 : ffff0001b418dd10 x1 : 0000000100000000 x0 : 0000000000000032
Call trace:
 dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3081
 dbAllocDmapLev+0x194/0x414 fs/jfs/jfs_dmap.c:2051
 dbAllocCtl+0x104/0x878 fs/jfs/jfs_dmap.c:1891
 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1432
 dbDiscardAG+0x240/0x728 fs/jfs/jfs_dmap.c:1681
 jfs_ioc_trim+0x3cc/0x5d8 fs/jfs/jfs_discard.c:100
 jfs_ioctl+0x350/0x574 fs/jfs/ioctl.c:132
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 90043483 910c8063 52818122 95996f70 (d4210000) 
---[ end trace 8e1c6f27498993f1 ]---