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kernel BUG at fs/gfs2/glock.c:289!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4267 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289
Code: 75 36 e8 6b 89 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 57 89 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 41 89 ee fd 0f 0b e9 0f ff ff ff e8 35 89 ee fd e8 38 99
RSP: 0018:ffffc900042079a8 EFLAGS: 00010246
RAX: 01e82f4cc83a3900 RBX: ffff888023d40fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff52000840f28
RBP: 1ffff11004de3015 R08: ffffc90004207247 R09: fffff52000840ee4
R10: dffffc0000000000 R11: fffff52000840e49 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888026f18000 R15: ffff888023d412c8
FS:  0000555563166500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3fec09b000 CR3: 000000005c98e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_put_eventually fs/gfs2/super.c:1259 [inline]
 gfs2_evict_inode+0xeb7/0x11d0 fs/gfs2/super.c:1536
 evict+0x4c9/0x8d0 fs/inode.c:705
 gfs2_put_super+0x412/0x8c0 fs/gfs2/super.c:620
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7c/0xe0 fs/super.c:1470
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5368b9d897
Code: a2 c7 05 5c ee 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:00007ffdbde2f928 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f5368c31ef0 RCX: 00007f5368b9d897
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdbde2f9e0
RBP: 00007ffdbde2f9e0 R08: 00007ffdbde309e0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdbde30a70
R13: 00007f5368c31ef0 R14: 0000000000055ee2 R15: 00007ffdbde30ab0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289
Code: 75 36 e8 6b 89 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 57 89 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 41 89 ee fd 0f 0b e9 0f ff ff ff e8 35 89 ee fd e8 38 99
RSP: 0018:ffffc900042079a8 EFLAGS: 00010246
RAX: 01e82f4cc83a3900 RBX: ffff888023d40fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff52000840f28
RBP: 1ffff11004de3015 R08: ffffc90004207247 R09: fffff52000840ee4
R10: dffffc0000000000 R11: fffff52000840e49 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888026f18000 R15: ffff888023d412c8
FS:  0000555563166500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3fec09b000 CR3: 000000005c98e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400