gfs2: fsid=syz:syz.0: G: s:UN n:2/249e f:an t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:246! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 9737 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246 Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc9000e4779a8 EFLAGS: 00010246 RAX: 5bb56441ba6fdc00 RBX: ffff888062a64000 RCX: ffff888027d70000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000e477b10 R08: ffffc9000e477267 R09: 1ffff92001c8ee4c R10: dffffc0000000000 R11: fffff52001c8ee4d R12: dffffc0000000000 R13: 0000000000000003 R14: ffff888058ffc000 R15: ffff888062a642f0 FS: 000055555e075500(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd43bbbff8 CR3: 000000001e280000 CR4: 00000000003526f0 Call Trace: gfs2_glock_put_eventually fs/gfs2/super.c:1170 [inline] gfs2_evict_inode+0xae7/0x1000 fs/gfs2/super.c:1445 evict+0x5f4/0xae0 fs/inode.c:837 gfs2_put_super+0x2f7/0x860 fs/gfs2/super.c:615 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+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 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+0xff/0x4f0 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+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe8f0990a77 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd43bbc268 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fe8f0a13d7d RCX: 00007fe8f0990a77 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd43bbc320 RBP: 00007ffd43bbc320 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd43bbd3b0 R13: 00007fe8f0a13d7d R14: 000000000005218b R15: 00007ffd43bbd3f0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246 Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f RSP: 0018:ffffc9000e4779a8 EFLAGS: 00010246 RAX: 5bb56441ba6fdc00 RBX: ffff888062a64000 RCX: ffff888027d70000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000e477b10 R08: ffffc9000e477267 R09: 1ffff92001c8ee4c R10: dffffc0000000000 R11: fffff52001c8ee4d R12: dffffc0000000000 R13: 0000000000000003 R14: ffff888058ffc000 R15: ffff888062a642f0 FS: 000055555e075500(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005589c3a88f40 CR3: 000000001e280000 CR4: 00000000003526f0