loop0: detected capacity change from 0 to 32768
 ... Log Wrap ... Log Wrap ... Log Wrap ...
BUG at fs/jfs/jfs_dmap.c:3036 assert(bitno < 32)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:3036!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7502 Comm: syz.0.162 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036
lr : dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036
sp : ffff80009ea973f0
x29: ffff80009ea973f0 x28: ffff0000e5750008 x27: 0000000000000004
x26: ffff0000e5750808 x25: 0000000000000002 x24: 0000000000000000
x23: ffff80008fddba20 x22: 0000000000000020 x21: 0000000000000001
x20: 00000000ffffffff x19: 0000000000000000 x18: 1fffe000337a0688
x17: ffff80008f7be000 x16: ffff80008b007230 x15: 0000000000000001
x14: 1ffff00013d52df4 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700013d52df5 x10: 0000000000ff0100 x9 : c01c60ef17019c00
x8 : c01c60ef17019c00 x7 : ffff800080491074 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000807de560
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000030
Call trace:
 dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036 (P)
 dbAllocNear+0x1f4/0x350 fs/jfs/jfs_dmap.c:1243
 dbAlloc+0x72c/0x9dc fs/jfs/jfs_dmap.c:832
 ea_get+0x6e8/0xec4 fs/jfs/xattr.c:516
 __jfs_setxattr+0x460/0xf84 fs/jfs/xattr.c:727
 jfs_initxattrs+0x150/0x22c fs/jfs/xattr.c:1040
 security_inode_init_security+0x6dc/0x7f4 security/security.c:1852
 jfs_init_security+0xa4/0xec fs/jfs/xattr.c:1052
 jfs_mkdir+0x228/0x8b4 fs/jfs/namei.c:240
 vfs_mkdir+0x284/0x424 fs/namei.c:4366
 do_mkdirat+0x1f8/0x4c8 fs/namei.c:4399
 __do_sys_mkdirat fs/namei.c:4416 [inline]
 __se_sys_mkdirat fs/namei.c:4414 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4414
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 9004c3a3 91318063 52817b82 97945f53 (d4210000) 
---[ end trace 0000000000000000 ]---