syzbot

RBP: 00007ffcf8547770 R08: 00007ffcf8548770 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8548800
R13: 00007f75310322ca R14: 0000000000185b6a R15: 00007ffcf8548840
 </TASK>
gfs2: fsid=syz:syz.0: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/trans.c:324!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 3616 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:gfs2_trans_add_revoke+0xd1/0xe0 fs/gfs2/trans.c:324
Code: 41 5c 41 5d 41 5e 41 5f e9 d7 c3 e1 fc cc 89 d9 80 e1 07 80 c1 03 38 c1 7c e3 48 89 df e8 47 38 05 fe eb d9 e8 60 b7 97 fd 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc90004d1f7f8 EFLAGS: 00010293
RAX: ffffffff842e7d50 RBX: ffff88807f3d6ea0 RCX: ffff88801ff18000
RDX: 0000000000000000 RSI: ffff88805461da80 RDI: ffff888059360000
RBP: 0000000000020000 R08: ffffffff9031adf7 R09: 1ffffffff20635be
R10: dffffc0000000000 R11: fffffbfff20635bf R12: ffff88805461da98
R13: dffffc0000000000 R14: ffff88805461da80 R15: ffff888059360000
FS:  00005555569f4500(0000) GS:ffff888125253000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f188e5286 CR3: 000000005ace0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __gfs2_ail_flush+0x134/0x220 fs/gfs2/glops.c:78
 gfs2_ail_flush+0xbd/0x100 fs/gfs2/glops.c:152
 evict_linked_inode fs/gfs2/super.c:1415 [inline]
 gfs2_evict_inode+0x73f/0x1400 fs/gfs2/super.c:1481
 evict+0x624/0xb50 fs/inode.c:828
 dentry_kill+0x1b9/0x880 fs/dcache.c:826
 finish_dput+0x1a/0x260 fs/dcache.c:1001
 shrink_dcache_for_umount+0x111/0x500 fs/dcache.c:1812
 generic_shutdown_super+0x6f/0x2d0 fs/super.c:625
 kill_block_super+0x44/0x90 fs/super.c:1665
 deactivate_locked_super+0xbc/0x130 fs/super.c:477
 cleanup_mnt+0x3d3/0x460 fs/namespace.c:1317
 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:70 [inline]
 exit_to_user_mode_loop+0x1fa/0x730 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7530f9e097
Code: a2 c7 05 5c 06 25 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:00007ffcf85476b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f75310322ca RCX: 00007f7530f9e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf8547770
RBP: 00007ffcf8547770 R08: 00007ffcf8548770 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8548800
R13: 00007f75310322ca R14: 0000000000185b6a R15: 00007ffcf8548840
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_trans_add_revoke+0xd1/0xe0 fs/gfs2/trans.c:324
Code: 41 5c 41 5d 41 5e 41 5f e9 d7 c3 e1 fc cc 89 d9 80 e1 07 80 c1 03 38 c1 7c e3 48 89 df e8 47 38 05 fe eb d9 e8 60 b7 97 fd 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc90004d1f7f8 EFLAGS: 00010293
RAX: ffffffff842e7d50 RBX: ffff88807f3d6ea0 RCX: ffff88801ff18000
RDX: 0000000000000000 RSI: ffff88805461da80 RDI: ffff888059360000
RBP: 0000000000020000 R08: ffffffff9031adf7 R09: 1ffffffff20635be
R10: dffffc0000000000 R11: fffffbfff20635bf R12: ffff88805461da98
R13: dffffc0000000000 R14: ffff88805461da80 R15: ffff888059360000
FS:  00005555569f4500(0000) GS:ffff888125253000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f188e5286 CR3: 000000005ace0000 CR4: 0000000000350ef0