RBP: 00007ffc2ba92de0 R08: 00007ffc2ba93de0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc2ba93e70 R13: 00007fe315e0471f R14: 000000000001cc1f R15: 00007ffc2ba93eb0 ------------[ cut here ]------------ kernel BUG at fs/gfs2/super.c:76! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 5829 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76 Code: f3 7e f9 fc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 22 02 16 fe e9 d8 fd ff ff e8 b8 2b 80 07 e8 13 b5 ad fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 RSP: 0018:ffffc90003167bc0 EFLAGS: 00010293 RAX: ffffffff8416c23d RBX: dead000000000122 RCX: ffff88801ebf1e80 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc90003167c80 R08: ffff88807cd70e37 R09: 1ffff1100f9ae1c6 R10: dffffc0000000000 R11: ffffed100f9ae1c7 R12: ffff88807cd70908 R13: dffffc0000000000 R14: ffff888031158f00 R15: ffff888031158f78 FS: 000055555dab8500(0000) GS:ffff8881257f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff1caf2d60 CR3: 0000000059457000 CR4: 0000000000350ef0 Call Trace: gfs2_put_super+0x7d9/0x860 fs/gfs2/super.c:636 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1722 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1318 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe315d9bf17 Code: a2 c7 05 7c 96 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffc2ba92d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fe315e0471f RCX: 00007fe315d9bf17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc2ba92de0 RBP: 00007ffc2ba92de0 R08: 00007ffc2ba93de0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc2ba93e70 R13: 00007fe315e0471f R14: 000000000001cc1f R15: 00007ffc2ba93eb0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76 Code: f3 7e f9 fc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 22 02 16 fe e9 d8 fd ff ff e8 b8 2b 80 07 e8 13 b5 ad fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 RSP: 0018:ffffc90003167bc0 EFLAGS: 00010293 RAX: ffffffff8416c23d RBX: dead000000000122 RCX: ffff88801ebf1e80 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc90003167c80 R08: ffff88807cd70e37 R09: 1ffff1100f9ae1c6 R10: dffffc0000000000 R11: ffffed100f9ae1c7 R12: ffff88807cd70908 R13: dffffc0000000000 R14: ffff888031158f00 R15: ffff888031158f78 FS: 000055555dab8500(0000) GS:ffff8881256f5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8760de0ad8 CR3: 0000000059457000 CR4: 0000000000350ef0