gfs2: fsid=syz:syz.0: about to withdraw this file system gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5 gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5 ------------[ cut here ]------------ kernel BUG at fs/gfs2/super.c:76! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 5945 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76 Code: 18 1c 91 07 cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 d2 33 0a fe e9 d8 fd ff ff e8 08 2d 8e 07 e8 d3 cd a0 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:ffffc90003527bc0 EFLAGS: 00010293 RAX: ffffffff8425d52d RBX: dead000000000122 RCX: ffff88802b340000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc90003527c80 R08: ffff888033c2ce1f R09: 1ffff110067859c3 R10: dffffc0000000000 R11: ffffed10067859c4 R12: ffff888033c2c900 R13: dffffc0000000000 R14: ffff888036cb6000 R15: ffff888036cb6078 FS: 0000555594b9a500(0000) GS:ffff888125436000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555c58cef030 CR3: 0000000036ed0000 CR4: 00000000003526f0 Call Trace: gfs2_put_super+0x7d9/0x860 fs/gfs2/super.c:638 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646 kill_block_super+0x44/0x90 fs/super.c:1725 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 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:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7d2659d9d7 Code: a2 c7 05 1c fd 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:00007fff6a3ae488 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f7d26632050 RCX: 00007f7d2659d9d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff6a3ae540 RBP: 00007fff6a3ae540 R08: 00007fff6a3af540 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6a3af5d0 R13: 00007f7d26632050 R14: 0000000000019ee6 R15: 00007fff6a3af610 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76 Code: 18 1c 91 07 cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 d2 33 0a fe e9 d8 fd ff ff e8 08 2d 8e 07 e8 d3 cd a0 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:ffffc90003527bc0 EFLAGS: 00010293 RAX: ffffffff8425d52d RBX: dead000000000122 RCX: ffff88802b340000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc90003527c80 R08: ffff888033c2ce1f R09: 1ffff110067859c3 R10: dffffc0000000000 R11: ffffed10067859c4 R12: ffff888033c2c900 R13: dffffc0000000000 R14: ffff888036cb6000 R15: ffff888036cb6078 FS: 0000555594b9a500(0000) GS:ffff888125436000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555c58cef030 CR3: 0000000036ed0000 CR4: 00000000003526f0