INFO: task syz-executor:5835 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:20904 pid:5835  tgid:5835  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa47/0xc60 kernel/workqueue.c:4242
 flush_work kernel/workqueue.c:4263 [inline]
 flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4285
 invalidate_dquots fs/quota/dquot.c:576 [inline]
 dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2296
 ocfs2_disable_quotas+0xf3/0x210 fs/ocfs2/super.c:963
 ocfs2_dismount_volume+0x1bd/0x910 fs/ocfs2/super.c:1870
 generic_shutdown_super+0x13b/0x2d0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1710
 deactivate_locked_super+0xc6/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x251/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2a/0x28e0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e20385d29
RSP: 002b:00007ffe65dcb718 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f2e20401919 RCX: 00007f2e20385d29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000000d R08: 00007ffe65dc94b6 R09: 00007ffe65dcc9d0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe65dcc9d0
R13: 00007f2e204018f4 R14: 00007ffe65dcda90 R15: 0000000000000032
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5828 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__rb_insert lib/rbtree.c:211 [inline]
RIP: 0010:rb_insert_color+0x541/0x690 lib/rbtree.c:436
Code: df e8 03 d5 41 f6 48 8b 2b 48 bb 00 00 00 00 00 fc ff df 41 80 7c 1d 00 00 49 89 dd 74 08 4c 89 e7 e8 d3 d5 41 f6 49 89 2c 24 <48> 89 eb 49 8d 6e 10 48 89 e8 48 c1 e8 03 42 80 3c 28 00 74 08 48
RSP: 0018:ffffc900032d7530 EFLAGS: 00000246
RAX: ffff888064a59f80 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000010 RSI: ffff88801ac631f8 RDI: ffff888064a59f80
RBP: 0000000000000000 R08: ffff888064a59f97 R09: ffff888064a59f88
R10: dffffc0000000000 R11: ffffed100c94b3f3 R12: ffff888064a59eb8
R13: dffffc0000000000 R14: ffff888064a59f18 R15: ffff888064a59eb0
FS:  00005555769f3500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f226ed47ab8 CR3: 000000005d27a000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __link_va mm/vmalloc.c:1201 [inline]
 link_va mm/vmalloc.c:1213 [inline]
 insert_vmap_area+0x3c5/0x510 mm/vmalloc.c:1330
 free_vmap_area_noflush+0x1f1/0x4c0 mm/vmalloc.c:2369
 free_unmap_vmap_area mm/vmalloc.c:2389 [inline]
 remove_vm_area+0x2b7/0x300 mm/vmalloc.c:3245
 vfree+0x7f/0x360 mm/vmalloc.c:3364
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:882 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
 do_ip6t_get_ctl+0x11eb/0x1820 net/ipv6/netfilter/ip6_tables.c:1677
 nf_getsockopt+0x29b/0x2c0 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x23e/0x360 net/ipv6/ipv6_sockglue.c:1493
 tcp_getsockopt+0x165/0x1c0 net/ipv4/tcp.c:4671
 do_sock_getsockopt+0x3c6/0x7e0 net/socket.c:2374
 __sys_getsockopt net/socket.c:2403 [inline]
 __do_sys_getsockopt net/socket.c:2410 [inline]
 __se_sys_getsockopt net/socket.c:2407 [inline]
 __x64_sys_getsockopt+0x2a1/0x370 net/socket.c:2407
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f226eb87a6a
Code: ff c3 66 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 a8 ff ff ff f7
RSP: 002b:00007ffccd3ea778 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffccd3ea800 RCX: 00007f226eb87a6a
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffccd3ea79c R09: 0079746972756365
R10: 00007ffccd3ea800 R11: 0000000000000212 R12: 00007f226ed480c0
R13: 00007ffccd3ea79c R14: 0000000000000000 R15: 00007f226ed48e40
 </TASK>