INFO: task syz-executor.4:5072 blocked for more than 143 seconds.
      Not tainted 6.5.0-syzkaller-08262-gef2a0b7cdbc5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:20968 pid:5072  ppid:1      flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6695
 schedule+0xc3/0x180 kernel/sched/core.c:6771
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 gfs2_gl_hash_clear+0x1a3/0x310 fs/gfs2/glock.c:2198
 gfs2_put_super+0x833/0x8a0 fs/gfs2/super.c:657
 generic_shutdown_super+0x13a/0x2c0 fs/super.c:693
 kill_block_super+0x41/0x70 fs/super.c:1620
 deactivate_locked_super+0xa4/0x110 fs/super.c:481
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
 task_work_run+0x24a/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f470887de17
RSP: 002b:00007ffd901320e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f470887de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd901321a0
RBP: 00007ffd901321a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd90133260
R13: 00007f47088c73b9 R14: 000000000003bebf R15: 0000000000000002
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-syzkaller-08262-gef2a0b7cdbc5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xdf5/0xe40 kernel/hung_task.c:379
 kthread+0x2b8/0x350 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4467 Comm: klogd Not tainted 6.5.0-syzkaller-08262-gef2a0b7cdbc5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1021 [inline]
RIP: 0010:debug_check_no_obj_freed+0x159/0x420 lib/debugobjects.c:1063
Code: 41 ff c7 48 8b 44 24 28 48 85 c0 0f 84 41 02 00 00 48 89 c5 49 89 c6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 <74> 08 48 89 ef e8 ed 5d a5 fd 48 8b 45 00 48 89 44 24 28 48 8d 5d
RSP: 0018:ffffc9000e6f7470 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff92112e40 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc9000e6f7340
RBP: ffff88802799d070 R08: 0000000000000003 R09: fffff52001cdee68
R10: dffffc0000000000 R11: fffff52001cdee68 R12: ffff8880209c0000
R13: ffff8880209b9000 R14: 1ffff11004f33a0e R15: 0000000000000000
FS:  00007fab7a0f7380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeba4b4f80 CR3: 000000002a9aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 free_pages_prepare mm/page_alloc.c:1142 [inline]
 free_unref_page_prepare+0x241/0x9f0 mm/page_alloc.c:2312
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
 discard_slab mm/slub.c:2116 [inline]
 __unfreeze_partials+0x1dc/0x220 mm/slub.c:2655
 put_cpu_partial+0x116/0x180 mm/slub.c:2731
 __slab_free+0x2b6/0x390 mm/slub.c:3679
 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
 ____kasan_kmalloc mm/kasan/common.c:340 [inline]
 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:196 [inline]
 __do_kmalloc_node mm/slab_common.c:1023 [inline]
 __kmalloc_node_track_caller+0xb6/0x230 mm/slab_common.c:1043
 kmalloc_reserve+0xfe/0x240 net/core/skbuff.c:575
 __alloc_skb+0x1b1/0x420 net/core/skbuff.c:644
 alloc_skb include/linux/skbuff.h:1286 [inline]
 alloc_skb_with_frags+0xc3/0x780 net/core/skbuff.c:6299
 sock_alloc_send_pskb+0x919/0xa50 net/core/sock.c:2794
 unix_dgram_sendmsg+0x659/0x2070 net/unix/af_unix.c:1953
 sock_sendmsg_nosec net/socket.c:730 [inline]
 sock_sendmsg net/socket.c:753 [inline]
 __sys_sendto+0x484/0x640 net/socket.c:2176
 __do_sys_sendto net/socket.c:2188 [inline]
 __se_sys_sendto net/socket.c:2184 [inline]
 __x64_sys_sendto+0xde/0xf0 net/socket.c:2184
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fab7a2599b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffec34049c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab7a2599b5
RDX: 0000000000000049 RSI: 000055beebedd810 RDI: 0000000000000003
RBP: 000055beebed6910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fab7a3e7212 R14: 00007ffec3404ac8 R15: 0000000000000000
 </TASK>