loop0: detected capacity change from 0 to 512
------------[ cut here ]------------
block_group >= groups_count - block_group = 51055371, groups_count = 1
WARNING: CPU: 0 PID: 4559 at fs/ext2/balloc.c:51 ext2_get_group_desc+0x184/0x210 fs/ext2/balloc.c:-1
Modules linked in:
CPU: 0 PID: 4559 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ext2_get_group_desc+0x184/0x210 fs/ext2/balloc.c:-1
lr : ext2_get_group_desc+0x180/0x210 fs/ext2/balloc.c:49
sp : ffff8000210277c0
x29: ffff8000210277c0 x28: dfff800000000000 x27: 0000000061616160
x26: 1fffe0001a045ccf x25: dfff800000000000 x24: ffff0000d634b800
x23: 0000000000000001 x22: ffff0000d022e678 x21: 00000000030b0b0b
x20: 00000000030b0b0b x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d9364 x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe00033eaaba3 x12: 0000000000ff0100
x11: ff00800008194238 x10: 0000000000000000 x9 : fe0faf0edbb48c00
x8 : fe0faf0edbb48c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021027258 x4 : ffff8000152e4cc0 x3 : ffff800008538160
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 ext2_get_group_desc+0x184/0x210 fs/ext2/balloc.c:-1
 ext2_get_inode+0x174/0x3c0 fs/ext2/inode.c:1317
 ext2_iget+0xd8/0x17e0 fs/ext2/inode.c:1395
 ext2_nfs_get_inode+0x110/0x1b8 fs/ext2/super.c:374
 generic_fh_to_dentry+0x9c/0x104 fs/libfs.c:1072
 ext2_fh_to_dentry+0x44/0x58 fs/ext2/super.c:388
 exportfs_decode_fh_raw+0x14c/0x56c fs/exportfs/expfs.c:435
 exportfs_decode_fh+0x50/0x80 fs/exportfs/expfs.c:575
 do_handle_to_path fs/fhandle.c:152 [inline]
 handle_to_path fs/fhandle.c:207 [inline]
 do_handle_open+0x4dc/0x8d0 fs/fhandle.c:223
 __do_sys_open_by_handle_at fs/fhandle.c:265 [inline]
 __se_sys_open_by_handle_at fs/fhandle.c:256 [inline]
 __arm64_sys_open_by_handle_at+0x80/0x94 fs/fhandle.c:256
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 8032
hardirqs last  enabled at (8031): [<ffff80000830fb6c>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261
hardirqs last disabled at (8032): [<ffff800011a1c234>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (7996): [<ffff800008030954>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (7994): [<ffff800008030920>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---