------------[ cut here ]------------ kernel BUG at fs/gfs2/super.c:76! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 18847 Comm: syz-executor Not tainted 6.17.0-rc2-syzkaller-00028-gbe48bcf004f9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76 Code: 83 9a 13 fd cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 f2 6d 26 fe e9 e0 fd ff ff e8 48 d0 7c 07 e8 d3 03 c3 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 RSP: 0018:ffffc9000453fa40 EFLAGS: 00010293 RAX: ffffffff83fca6ad RBX: dead000000000122 RCX: ffff8880259cbc00 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc9000453fb00 R08: ffff888052f9cd4f R09: 1ffff1100a5f39a9 R10: dffffc0000000000 R11: ffffed100a5f39aa R12: ffff888052f9c818 R13: dffffc0000000000 R14: ffff888029075600 R15: ffff888029075678 FS: 0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c259840 CR3: 000000008a551000 CR4: 0000000000350ef0 Call Trace: gfs2_put_super+0x8af/0x950 fs/gfs2/super.c:636 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1766 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1378 task_work_run+0x1d4/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x2300 kernel/exit.c:961 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 __do_sys_exit_group kernel/exit.c:1113 [inline] __se_sys_exit_group kernel/exit.c:1111 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e73d8ebe9 Code: Unable to access opcode bytes at 0x7f7e73d8ebbf. RSP: 002b:00007ffd6d1dd908 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f7e73e11c2a RCX: 00007f7e73d8ebe9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000005 R08: 00007ffd6d1db6a7 R09: 00007ffd6d1deb60 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd6d1deb60 R13: 00007f7e73e11c05 R14: 00000000002cb1b2 R15: 00007ffd6d1deba0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_jindex_free+0x43e/0x440 fs/gfs2/super.c:76 Code: 83 9a 13 fd cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c ea fd ff ff e8 f2 6d 26 fe e9 e0 fd ff ff e8 48 d0 7c 07 e8 d3 03 c3 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 RSP: 0018:ffffc9000453fa40 EFLAGS: 00010293 RAX: ffffffff83fca6ad RBX: dead000000000122 RCX: ffff8880259cbc00 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: ffffc9000453fb00 R08: ffff888052f9cd4f R09: 1ffff1100a5f39a9 R10: dffffc0000000000 R11: ffffed100a5f39aa R12: ffff888052f9c818 R13: dffffc0000000000 R14: ffff888029075600 R15: ffff888029075678 FS: 0000000000000000(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558ed205c8 CR3: 000000002ed6b000 CR4: 0000000000350ef0