INFO: task syz.1.2230:13269 blocked in I/O wait for more than 143 seconds.
Tainted: G L syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2230 state:D stack:25600 pid:13269 tgid:13268 ppid:11283 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x125c/0x6730 kernel/sched/core.c:7228
__schedule_loop kernel/sched/core.c:7307 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7322
io_schedule+0x8a/0xf0 kernel/sched/core.c:8150
folio_wait_bit_common+0x414/0xa70 mm/filemap.c:1324
folio_lock include/linux/pagemap.h:1159 [inline]
migrate_folio_unmap mm/migrate.c:1252 [inline]
migrate_pages_batch+0x7a1/0x45c0 mm/migrate.c:1909
migrate_pages_sync+0x4db/0x880 mm/migrate.c:2053
migrate_pages+0x1a83/0x2850 mm/migrate.c:2135
compact_zone+0x2439/0x4410 mm/compaction.c:2664
compact_node+0x17f/0x2c0 mm/compaction.c:2933
compact_nodes mm/compaction.c:2955 [inline]
sysctl_compaction_handler mm/compaction.c:3006 [inline]
sysctl_compaction_handler+0x141/0x210 mm/compaction.c:2993
proc_sys_call_handler+0x47f/0x5a0 fs/proc/proc_sysctl.c:600
iter_file_splice_write+0x830/0x10b0 fs/splice.c:736
do_splice_from fs/splice.c:936 [inline]
direct_splice_actor+0x192/0x690 fs/splice.c:1159
splice_direct_to_actor+0x345/0xa30 fs/splice.c:1103
do_splice_direct_actor fs/splice.c:1202 [inline]
do_splice_direct+0x174/0x240 fs/splice.c:1228
do_sendfile+0xadc/0xe20 fs/read_write.c:1371
__do_sys_sendfile64 fs/read_write.c:1426 [inline]
__se_sys_sendfile64 fs/read_write.c:1418 [inline]
__x64_sys_sendfile64+0x154/0x220 fs/read_write.c:1418
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f62aeb9ce59
RSP: 002b:00007f62afa44028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f62aee15fa0 RCX: 00007f62aeb9ce59
RDX: 00002000000000c0 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007f62aec32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000a R11: 0000000000000246 R12: 0000000000000000
R13: 00007f62aee16038 R14: 00007f62aee15fa0 R15: 00007ffcd6bc6828
INFO: lockdep is turned off.
NMI backtrace for cpu 2
CPU: 2 UID: 0 PID: 43 Comm: khungtaskd Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
nmi_cpu_backtrace.cold+0x12d/0x151 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x1d7/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x141/0x190 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xcb1/0x1030 kernel/hung_task.c:561
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 2 to CPUs 0-1,3:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 18722 Comm: syz.0.3680 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:33 [inline]
RIP: 0010:folio_mapcount include/linux/mm.h:1872 [inline]
RIP: 0010:folio_mapped include/linux/mm.h:1888 [inline]
RIP: 0010:truncate_cleanup_folio+0xd2/0x5d0 mm/truncate.c:156
Code: 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 fa 03 00 00 <8b> 6b 30 bf 00 00 00 ff 89 ee e8 af eb bb ff 81 fd 00 00 00 ff 7c
RSP: 0018:ffffc90003a8f040 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffffea00012b1400 RCX: ffffffff824d8e28
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffea00012b1430
RBP: ffffea00012b1430 R08: 0000000000000000 R09: fffff94000256286
R10: ffffea00012b1433 R11: 0000000000000001 R12: ffffea00012b1408
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000012
FS: 0000000000000000(0000) GS:ffff8880d6323000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb2364f270 CR3: 000000000e592000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f7 DR2: 00000000ffffffff
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
truncate_inode_folio+0x3f/0x70 mm/truncate.c:175
shmem_undo_range+0x3ae/0x1570 mm/shmem.c:1145
shmem_truncate_range mm/shmem.c:1277 [inline]
shmem_evict_inode+0x3a5/0xbe0 mm/shmem.c:1407
evict+0x3c2/0xad0 fs/inode.c:828
iput_final fs/inode.c:2022 [inline]
iput.part.0+0x989/0x1050 fs/inode.c:2071
iput+0x35/0x40 fs/inode.c:2037
dentry_unlink_inode+0x284/0x470 fs/dcache.c:479
dentry_kill+0x25d/0xc20 fs/dcache.c:826
shrink_kill fs/dcache.c:1275 [inline]
shrink_dentry_list+0x1e8/0x310 fs/dcache.c:1292
shrink_dcache_tree+0x201/0x400 fs/dcache.c:1759
do_one_tree fs/dcache.c:1795 [inline]
shrink_dcache_for_umount+0x101/0x6c0 fs/dcache.c:1812
generic_shutdown_super+0x7e/0x360 fs/super.c:625
kill_anon_super+0x3a/0x60 fs/super.c:1232
deactivate_locked_super+0xc1/0x1b0 fs/super.c:477
deactivate_super fs/super.c:510 [inline]
deactivate_super+0xe7/0x110 fs/super.c:506
cleanup_mnt+0x21f/0x450 fs/namespace.c:1317
task_work_run+0x150/0x240 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x951/0x2ae0 kernel/exit.c:1004
do_group_exit+0xd5/0x2a0 kernel/exit.c:1147
get_signal+0x1ec7/0x21e0 kernel/signal.c:3038
arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x139/0x6f0 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+0x666/0x870 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffb2359ce59
Code: Unable to access opcode bytes at 0x7ffb2359ce2f.
RSP: 002b:00007ffb2442d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 000000000000001c RBX: 00007ffb23815fa0 RCX: 00007ffb2359ce59
RDX: 0000000004008054 RSI: 0000200000000200 RDI: 0000000000000005
RBP: 00007ffb23632e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffb23816038 R14: 00007ffb23815fa0 R15: 00007ffccbd6c198
NMI backtrace for cpu 3
CPU: 3 UID: 0 PID: 6076 Comm: kworker/u32:4 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:arch_scale_freq_capacity arch/x86/include/asm/topology.h:307 [inline]
RIP: 0010:update_rq_clock_pelt kernel/sched/pelt.h:124 [inline]
RIP: 0010:update_rq_clock_task kernel/sched/core.c:857 [inline]
RIP: 0010:update_rq_clock+0x3ad/0xd20 kernel/sched/core.c:882
Code: c1 ea 03 80 3c 02 00 0f 85 83 06 00 00 4e 03 24 ed 20 09 1f 8e 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 <0f> 85 53 06 00 00 49 0f af 2c 24 48 8d bb c8 0b 00 00 48 b8 00 00
RSP: 0000:ffffc900006f8e00 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88806a73b340 RCX: 000000000028c08a
RDX: 1ffff1100d4e4686 RSI: ffffffff81afa265 RDI: ffffffff8e1f0938
RBP: 000000000028c08a R08: ffff88806a73bf00 R09: 0000000000000000
R10: 0000000000000000 R11: ffffc900006f8ff8 R12: ffff88806a723430
R13: 0000000000000003 R14: ffff88806a73bf20 R15: ffff888024ea8000
FS: 0000000000000000(0000) GS:ffff8880d6623000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e1d1dd000 CR3: 000000000e592000 CR4: 0000000000352ef0
Call Trace:
hrtick+0x122/0x380 kernel/sched/core.c:915
__run_hrtimer kernel/time/hrtimer.c:2032 [inline]
__hrtimer_run_queues+0x13f/0x9c0 kernel/time/hrtimer.c:2096
hrtimer_interrupt+0x3e5/0x940 kernel/time/hrtimer.c:2215
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
__sysvec_apic_timer_interrupt+0x109/0x470 arch/x86/kernel/apic/apic.c:1068
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0x9e/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2039 [inline]
RIP: 0010:vprintk_emit+0x553/0x6b0 kernel/printk/printk.c:2478
Code: 00 4d 85 ed 0f 85 1b 01 00 00 e8 e8 b0 21 00 9c 5d 81 e5 00 02 00 00 31 ff 48 89 ee e8 b6 ab 21 00 48 85 ed 0f 85 27 01 00 00 c8 b0 21 00 45 31 c9 41 b8 01 00 00 00 31 c9 48 8d 05 00 00 00
RSP: 0000:ffffc90004b57890 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000027 RCX: ffffffff81e7cfaa
RDX: ffff888024ea8000 RSI: ffffffff81e7cfb4 RDI: ffff888024ea8000
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000753b R12: 1ffff9200096af14
R13: 0000000000000200 R14: ffff88801cf34a80 R15: ffffc90004b57958
_printk+0xcf/0x110 kernel/printk/printk.c:2504
ip_vs_est_kthread_destroy net/netfilter/ipvs/ip_vs_est.c:528 [inline]
ip_vs_estimator_net_cleanup.cold+0x55/0x92 net/netfilter/ipvs/ip_vs_est.c:962
__ip_vs_cleanup_batch+0xa1/0x130 net/netfilter/ipvs/ip_vs_core.c:2530
ops_exit_list net/core/net_namespace.c:205 [inline]
ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252
cleanup_net+0x499/0x920 net/core/net_namespace.c:702
process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
process_scheduled_works kernel/workqueue.c:3405 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5127 Comm: klogd Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x60/0xc0 kernel/rcu/tree.c:752
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 75 5c 48 03 1c ed 20 09 1f 8e 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6 14 02 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 03 c1 e8 02
RSP: 0018:ffffc9002654f730 EFLAGS: 00000806
RAX: dffffc0000000000 RBX: ffff88806a533c68 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c1d1d80 RDI: ffffffff8e1f0928
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fa573947c80(0000) GS:ffff8880d6423000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561b18c66000 CR3: 0000000028111000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f7 DR2: 00000000ffffffff
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_acquire include/trace/events/lock.h:23 [inline]
lock_acquire+0x301/0x370 kernel/locking/lockdep.c:5831
__raw_spin_trylock include/linux/spinlock_api_smp.h:91 [inline]
_raw_spin_trylock+0x63/0x80 kernel/locking/spinlock.c:142
_raw_spin_trylock_irqsave include/linux/spinlock_api_smp.h:112 [inline]
_spin_trylock_irqsave include/linux/spinlock.h:426 [inline]
avc_reclaim_node security/selinux/avc.c:473 [inline]
avc_alloc_node+0x1d7/0x670 security/selinux/avc.c:507
avc_insert security/selinux/avc.c:618 [inline]
avc_compute_av+0x101/0x820 security/selinux/avc.c:993
avc_perm_nonode+0xb1/0x180 security/selinux/avc.c:1117
avc_has_perm_noaudit+0x2d4/0x3b0 security/selinux/avc.c:1160
avc_has_perm+0xbd/0x1e0 security/selinux/avc.c:1195
selinux_socket_unix_may_send+0x1e6/0x2b0 security/selinux/hooks.c:5348
security_unix_may_send+0xc4/0x210 security/security.c:4175
unix_dgram_sendmsg+0xb38/0x1810 net/unix/af_unix.c:2243
sock_sendmsg_nosec net/socket.c:775 [inline]
__sock_sendmsg net/socket.c:790 [inline]
__sys_sendto+0x48b/0x4e0 net/socket.c:2252
__do_sys_sendto net/socket.c:2259 [inline]
__se_sys_sendto net/socket.c:2255 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2255
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa573a97407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe62708610 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa573947c80 RCX: 00007fa573a97407
RDX: 000000000000004e RSI: 00007ffe62708750 RDI: 0000000000000003
RBP: 00007ffe62708b80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffe62708b98
R13: 00007ffe62708750 R14: 0000000000000033 R15: 00007ffe62708750