gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4970 at fs/gfs2/rgrp.c:2638 gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] WARNING: CPU: 0 PID: 4970 at fs/gfs2/rgrp.c:2638 gfs2_check_blk_type+0x35c/0x558 fs/gfs2/rgrp.c:2637 Modules linked in: CPU: 0 PID: 4970 Comm: syz.0.16 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : gfs2_check_blk_type+0x35c/0x558 fs/gfs2/rgrp.c:279 lr : rgrp_contains_block fs/gfs2/rgrp.h:87 [inline] lr : gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] lr : gfs2_check_blk_type+0x2dc/0x558 fs/gfs2/rgrp.c:2637 sp : ffff80001f8276c0 x29: ffff80001f827780 x28: 1fffe0001da99806 x27: ffff0000ed4cc000 x26: dfff800000000000 x25: ffff80001f8276e0 x24: ffff700003f04edc x23: 0000000000000000 x22: 0000000000000013 x21: ffff0000ed4cc034 x20: 0000000000000012 x19: 1fffe0001da99805 x18: 1fffe00034216796 x17: 1fffe00034216796 x16: ffff8000082bf73c x15: ffff80001421ed80 x14: ffff0001a10b3cc0 x13: 1ffff0000283006b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000a0f9f3c x8 : ffff0000d7488000 x7 : ffff80000a0a0cd4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d6590 x2 : 0000000000000000 x1 : 0000000000000012 x0 : 0000000000000013 Call trace: gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] gfs2_check_blk_type+0x35c/0x558 fs/gfs2/rgrp.c:2637 gfs2_inode_lookup+0x4a8/0xb64 fs/gfs2/inode.c:177 gfs2_lookup_by_inum+0x60/0xf8 fs/gfs2/inode.c:250 gfs2_get_dentry fs/gfs2/export.c:139 [inline] gfs2_fh_to_dentry+0x128/0x200 fs/gfs2/export.c:162 exportfs_decode_fh_raw+0x10c/0x49c fs/exportfs/expfs.c:436 exportfs_decode_fh+0x50/0x80 fs/exportfs/expfs.c:576 do_handle_to_path fs/fhandle.c:152 [inline] handle_to_path fs/fhandle.c:207 [inline] do_handle_open+0x514/0x8e8 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+0x98/0x2b8 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 103438 hardirqs last enabled at (103437): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (103437): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:4803 hardirqs last disabled at (103438): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (103378): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (103376): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 97b4932702bf2d46 ]---