gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6807 at fs/gfs2/rgrp.c:2628 gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] WARNING: CPU: 1 PID: 6807 at fs/gfs2/rgrp.c:2628 gfs2_check_blk_type+0x370/0x570 fs/gfs2/rgrp.c:2627 Modules linked in: CPU: 1 UID: 0 PID: 6807 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : gfs2_check_blk_type+0x370/0x570 fs/gfs2/rgrp.c:279 lr : rgrp_contains_block fs/gfs2/rgrp.h:89 [inline] lr : gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] lr : gfs2_check_blk_type+0x2f0/0x570 fs/gfs2/rgrp.c:2627 sp : ffff8000a0327680 x29: ffff8000a0327740 x28: ffff0000d2b6e000 x27: dfff800000000000 x26: 1fffe0001a56dc05 x25: ffff700014064ed4 x24: ffff8000a03276a0 x23: 0000000000000013 x22: ffff0000d2b6e034 x21: 0000000000000000 x20: 0000000000000012 x19: 1fffe0001a56dc06 x18: 1fffe00033776488 x17: ffff80008f85e000 x16: ffff80008b065bd0 x15: 0000000000000001 x14: 1fffe0001c2495dc x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001c2495dd x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c549db80 x7 : ffff800080493890 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000825e3314 x2 : 000000000000000c x1 : 0000000000000012 x0 : 0000000000000013 Call trace: gfs2_rbm_from_block fs/gfs2/rgrp.c:279 [inline] (P) gfs2_check_blk_type+0x370/0x570 fs/gfs2/rgrp.c:2627 (P) gfs2_inode_lookup+0x818/0x974 fs/gfs2/inode.c:178 gfs2_lookup_by_inum+0x60/0xf8 fs/gfs2/inode.c:251 gfs2_get_dentry fs/gfs2/export.c:139 [inline] gfs2_fh_to_dentry+0x12c/0x1e4 fs/gfs2/export.c:160 exportfs_decode_fh_raw+0x15c/0x5d8 fs/exportfs/expfs.c:456 do_handle_to_path+0xa0/0x198 fs/fhandle.c:270 handle_to_path fs/fhandle.c:394 [inline] do_handle_open+0x580/0x730 fs/fhandle.c:409 __do_sys_open_by_handle_at fs/fhandle.c:449 [inline] __se_sys_open_by_handle_at fs/fhandle.c:440 [inline] __arm64_sys_open_by_handle_at+0x80/0x94 fs/fhandle.c:440 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 61314 hardirqs last enabled at (61313): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1531 [inline] hardirqs last enabled at (61313): [] finish_lock_switch+0xb0/0x1c0 kernel/sched/core.c:5105 hardirqs last disabled at (61314): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (61216): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (61214): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---