loop0: detected capacity change from 0 to 32768
BUG at fs/jfs/jfs_dmap.c:738 assert(nblocks > 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:738!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6571 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller-00090-gaafe7ad77b91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dbAlloc+0xafc/0xb68 fs/jfs/jfs_dmap.c:738
lr : dbAlloc+0xafc/0xb68 fs/jfs/jfs_dmap.c:738
sp : ffff800097046f40
x29: ffff800097047000 x28: ffff0000e07816b0 x27: dfff800000000000
x26: 0000000000000027 x25: ffff8000970470e0 x24: ffff0000c24bc000
x23: ffff700012e08df0 x22: ffff0000c5288c00 x21: 0000000000000000
x20: ffff800097046f80 x19: ffff0000c5288c10 x18: 1fffe0003682a5ce
x17: ffff80008e4ed000 x16: ffff80008a82b138 x15: 0000000000000001
x14: 1ffff00012e08d40 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : 25cde17c88a78a00
x8 : 25cde17c88a78a00 x7 : ffff80008028df50 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800082b78914
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000030
Call trace:
 dbAlloc+0xafc/0xb68 fs/jfs/jfs_dmap.c:738
 ea_get+0x6f8/0xef0 fs/jfs/xattr.c:514
 __jfs_getxattr+0xd4/0x484 fs/jfs/xattr.c:807
 jfs_xattr_get+0x50/0x68 fs/jfs/xattr.c:931
 __vfs_getxattr+0x394/0x3c0 fs/xattr.c:424
 smk_fetch+0xc8/0x150 security/smack/smack_lsm.c:304
 smack_d_instantiate+0x594/0x880 security/smack/smack_lsm.c:3573
 security_d_instantiate+0x98/0xf0 security/security.c:3799
 d_splice_alias+0x70/0x310 fs/dcache.c:3145
 jfs_lookup+0x270/0x39c fs/jfs/namei.c:1474
 lookup_open fs/namei.c:3455 [inline]
 open_last_lookups fs/namei.c:3546 [inline]
 path_openat+0xc90/0x2888 fs/namei.c:3776
 do_filp_open+0x1bc/0x3cc fs/namei.c:3809
 do_sys_openat2+0x124/0x1b8 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1463
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
Code: d00495c3 911e8063 52805c42 95931e95 (d4210000) 
---[ end trace 0000000000000000 ]---