INFO: task syz-executor.2:11795 blocked for more than 143 seconds.
Not tainted 6.7.0-rc5-syzkaller-00189-gbd7f77dae695 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26080 pid:11795 tgid:11782 ppid:9075 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_timeout+0x257/0x290 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e0/0x5f0 kernel/sched/completion.c:116
__flush_work+0x523/0xa10 kernel/workqueue.c:3404
__cancel_work_timer+0x3ef/0x590 kernel/workqueue.c:3491
tls_sk_proto_close+0x4b1/0xac0 net/tls/tls_main.c:376
inet_release+0x132/0x270 net/ipv4/af_inet.c:433
inet6_release+0x4f/0x70 net/ipv6/af_inet6.c:485
__sock_release+0xae/0x260 net/socket.c:659
sock_close+0x1c/0x20 net/socket.c:1419
__fput+0x270/0xbb0 fs/file_table.c:394
task_work_run+0x14d/0x240 kernel/task_work.c:180
get_signal+0x106f/0x2790 kernel/signal.c:2680
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x121/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f7d7947cbe9
RSP: 002b:00007f7d7a1c90c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: 0000000000128000 RBX: 00007f7d7959c120 RCX: 00007f7d7947cbe9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000003
RBP: 00007f7d794c847a R08: 0000000000000000 R09: 0000000000000000
R10: 00000000f2090293 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f7d7959c120 R15: 00007ffcff723658
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4826:
#0: ffff8880263110a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/0:9/5247:
#0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc90004ad7d80 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
#2: ffff88807d53d0f0 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x134/0x230 net/tls/tls_sw.c:2540
3 locks held by kworker/u4:10/1201:
1 lock held by syz-executor.2/11795:
#0: ffff8880402f8810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#0: ffff8880402f8810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x260 net/socket.c:658
2 locks held by syz-executor.0/14920:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.7.0-rc5-syzkaller-00189-gbd7f77dae695 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 14920 Comm: syz-executor.0 Not tainted 6.7.0-rc5-syzkaller-00189-gbd7f77dae695 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:PageSlab include/linux/page-flags.h:481 [inline]
RIP: 0010:page_table_check_clear mm/page_table_check.c:74 [inline]
RIP: 0010:page_table_check_clear+0x295/0x9b0 mm/page_table_check.c:61
Code: ff 49 89 df 48 89 dd e8 59 e8 9e ff be 08 00 00 00 4c 89 ff e8 dc 95 f5 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 50 06 00 00 48 8b 6d 00 31 ff 48 c1 ed 0b 83 e5
RSP: 0018:ffffc90004607610 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: ffffea000114adc0 RCX: ffffffff81e8a5b4
RDX: 1ffffd40002295b8 RSI: 0000000000000008 RDI: ffffea000114adc0
RBP: ffffea000114adc0 R08: 0000000000000000 R09: fffff940002295b8
R10: ffffea000114adc7 R11: 0000000000000003 R12: ffff888015574378
R13: 0000000000000001 R14: ffffea000114adc8 R15: ffffea000114adc0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f128fb76198 CR3: 0000000045305000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__page_table_check_pte_clear+0xef/0x100 mm/page_table_check.c:158
page_table_check_pte_clear include/linux/page_table_check.h:49 [inline]
ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1301 [inline]
zap_pte_range mm/memory.c:1440 [inline]
zap_pmd_range mm/memory.c:1583 [inline]
zap_pud_range mm/memory.c:1612 [inline]
zap_p4d_range mm/memory.c:1633 [inline]
unmap_page_range+0x1861/0x2b70 mm/memory.c:1654
unmap_single_vma+0x194/0x2b0 mm/memory.c:1700
unmap_vmas+0x229/0x470 mm/memory.c:1744
exit_mmap+0x1ad/0xa70 mm/mmap.c:3308
__mmput+0x12a/0x4d0 kernel/fork.c:1349
mmput+0x62/0x70 kernel/fork.c:1371
exit_mm kernel/exit.c:567 [inline]
do_exit+0x9ad/0x2ae0 kernel/exit.c:858
do_group_exit+0xd4/0x2a0 kernel/exit.c:1021
get_signal+0x23be/0x2790 kernel/signal.c:2904
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x121/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7febea27cbe9
Code: Unable to access opcode bytes at 0x7febea27cbbf.
RSP: 002b:00007febeb0140c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: 00000000002f0000 RBX: 00007febea39c120 RCX: 00007febea27cbe9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 00007febea2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 00000000f2090293 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007febea39c120 R15: 00007ffc5aeefd18