syzbot

  bh = 2073 (magic number)
  function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 492
gfs2: fsid=#ãöúSÖñ^Ñ°Õ~oó»Á$®.s: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:352!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4447 Comm: syz.0.16 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : gfs2_withdraw+0x1254/0x13a8 fs/gfs2/util.c:352
lr : gfs2_withdraw+0x1254/0x13a8 fs/gfs2/util.c:352
sp : ffff800020b86fc0
x29: ffff800020b870d0 x28: ffff700004170e04 x27: dfff800000000000
x26: ffff800011ebbc60 x25: ffff800020b87020 x24: 1fffe0001a3e5057
x23: 00000000000100c7 x22: ffff0000d1f28340 x21: ffff0000d1f280a8
x20: ffff0000d1f282bc x19: ffff0000d1f28000 x18: ffff800011a8bce0
x17: 6c69662073696874 x16: ffff8000082d2400 x15: 0000000000000000
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100
x11: ff0080000a1fea60 x10: 0000000000000000 x9 : ffff80000a1fea60
x8 : ffff0000dc2b0000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800020b86a98 x4 : ffff800015164800 x3 : ffff80000852e344
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000000
Call trace:
 gfs2_withdraw+0x1254/0x13a8 fs/gfs2/util.c:352
 gfs2_meta_check_ii+0x80/0x9c fs/gfs2/util.c:511
 gfs2_metatype_check_i fs/gfs2/util.h:126 [inline]
 gfs2_meta_buffer+0x228/0x2ec fs/gfs2/meta_io.c:492
 gfs2_meta_inode_buffer fs/gfs2/meta_io.h:72 [inline]
 gfs2_inode_refresh+0xac/0xd54 fs/gfs2/glops.c:480
 inode_go_instantiate+0x4c/0x68 fs/gfs2/glops.c:503
 gfs2_instantiate+0x17c/0x2c4 fs/gfs2/glock.c:520
 gfs2_glock_holder_ready fs/gfs2/glock.c:1333 [inline]
 gfs2_glock_wait+0x1b4/0x298 fs/gfs2/glock.c:1353
 gfs2_glock_nq+0x8bc/0x11d4 fs/gfs2/glock.c:1596
 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline]
 gfs2_lookupi+0x36c/0x58c fs/gfs2/inode.c:312
 gfs2_lookup_simple+0xb0/0x100 fs/gfs2/inode.c:264
 init_journal+0x17c/0x1e14 fs/gfs2/ops_fstype.c:745
 init_inodes+0xe0/0x2d4 fs/gfs2/ops_fstype.c:889
 gfs2_fill_super+0x122c/0x19ec fs/gfs2/ops_fstype.c:1246
 get_tree_bdev+0x358/0x544 fs/super.c:1366
 gfs2_get_tree+0x54/0x1b4 fs/gfs2/ops_fstype.c:1327
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 do_new_mount+0x228/0x810 fs/namespace.c:3058
 path_mount+0x5b4/0xe78 fs/namespace.c:3388
 do_mount fs/namespace.c:3401 [inline]
 __do_sys_mount fs/namespace.c:3609 [inline]
 __se_sys_mount fs/namespace.c:3586 [inline]
 __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3586
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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
Code: f9402be0 979b5eb3 17fffe95 978a8c5f (d4210000) 
---[ end trace 0000000000000000 ]---