[22095] 0 22095 17585 8206 25 4 0 0 syz-executor3 Out of memory: Kill process 21531 (syz-executor4) score 1007 or sacrifice child Killed process 21531 (syz-executor4) total-vm:70472kB, anon-rss:18068kB, file-rss:32768kB, shmem-rss:0kB oom_reaper: reaped process 21531 (syz-executor4), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB audit: type=1400 audit(2000001040.660:229): avc: denied { relabelto } for pid=22334 comm="syz-executor5" name="UNIX" dev="sockfs" ino=123527 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:audit_spool_t:s0 tclass=unix_stream_socket permissive=1 INFO: task init:13948 blocked for more than 140 seconds. Not tainted 4.14.88+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29176 13948 1 0x10000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3455 [inline] path_openat+0x5f9/0x2930 fs/namei.c:3597 do_filp_open+0x197/0x270 fs/namei.c:3631 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f79652da120 RSP: 002b:00007ffdfc31de48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00000000022430e0 RCX: 00007f79652da120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffdfc31dfc0 R15: 00000000022430e8 INFO: task init:13949 blocked for more than 140 seconds. Not tainted 4.14.88+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29224 13949 1 0x10000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3455 [inline] path_openat+0x5f9/0x2930 fs/namei.c:3597 do_filp_open+0x197/0x270 fs/namei.c:3631 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f79652da120 RSP: 002b:00007ffdfc31de48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000002243280 RCX: 00007f79652da120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffdfc31dfc0 R15: 0000000002243288 INFO: task init:13950 blocked for more than 140 seconds. Not tainted 4.14.88+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D28920 13950 1 0x10000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3455 [inline] path_openat+0x5f9/0x2930 fs/namei.c:3597 do_filp_open+0x197/0x270 fs/namei.c:3631 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f79652da120 RSP: 002b:00007ffdfc31de48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000002243350 RCX: 00007f79652da120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffdfc31dfc0 R15: 0000000002243358 INFO: task init:13951 blocked for more than 140 seconds. Not tainted 4.14.88+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29176 13951 1 0x10000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3455 [inline] path_openat+0x5f9/0x2930 fs/namei.c:3597 do_filp_open+0x197/0x270 fs/namei.c:3631 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f79652da120 RSP: 002b:00007ffdfc31de48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000002242f40 RCX: 00007f79652da120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffdfc31dfc0 R15: 0000000002242f48 INFO: task init:14272 blocked for more than 140 seconds. Not tainted 4.14.88+ #23 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29224 14272 1 0x10000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3455 [inline] path_openat+0x5f9/0x2930 fs/namei.c:3597 do_filp_open+0x197/0x270 fs/namei.c:3631 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f79652da120 RSP: 002b:00007ffdfc31de48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00000000022431b0 RCX: 00007f79652da120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffdfc31dfc0 R15: 00000000022431b8 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f kernel/locking/lockdep.c:4541 1 lock held by rsyslogd/1629: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa2/0xc0 fs/file.c:768 2 locks held by getty/1757: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x1700 drivers/tty/n_tty.c:2156 1 lock held by init/13948: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 1 lock held by init/13949: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 1 lock held by init/13950: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 1 lock held by init/13951: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 1 lock held by init/14272: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1927 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2011 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.88+ #23 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 nmi_cpu_backtrace.cold.0+0x47/0x85 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x146 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x574/0xa70 kernel/hung_task.c:252 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 22368 Comm: syz-executor3 Not tainted 4.14.88+ #23 task: ffff8881442f1780 task.stack: ffff8881571f0000 RIP: 0010:__sanitizer_cov_trace_pc+0x28/0x60 kernel/kcov.c:68 RSP: 0000:ffff8881db907948 EFLAGS: 00000006 RAX: ffff8881442f1780 RBX: ffffffffa52c00c0 RCX: 0000000000000005 RDX: 0000000000010000 RSI: ffffffffa52d32a0 RDI: ffffffffa52c0138 RBP: ffff8881db907a58 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffffa2ff4e80 R12: 0000607e2440b9d0 R13: ffff8881db907a30 R14: ffffffffa52d32a0 R15: 0000000000000000 FS: 00007fb2991bf700(0000) GS:ffff8881db900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000080a008 CR3: 000000014af26006 CR4: 00000000001606a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: debug_smp_processor_id+0x5/0x20 lib/smp_processor_id.c:57 perf_trace_lock_acquire+0x126/0x4d0 include/trace/events/lock.h:13 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x27b/0x380 kernel/locking/lockdep.c:3990 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] rcu_read_lock include/linux/rcupdate.h:631 [inline] __perf_event_output kernel/events/core.c:6254 [inline] perf_event_output_forward+0xb2/0x230 kernel/events/core.c:6274 __perf_event_overflow+0x116/0x320 kernel/events/core.c:7510 perf_swevent_hrtimer+0x21f/0x360 kernel/events/core.c:8720 __run_hrtimer kernel/time/hrtimer.c:1259 [inline] __hrtimer_run_queues+0x2d0/0xc10 kernel/time/hrtimer.c:1323 hrtimer_interrupt+0x19a/0x440 kernel/time/hrtimer.c:1357 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] smp_apic_timer_interrupt+0x13a/0x600 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:787 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline] RIP: 0010:page_ref_count include/linux/page_ref.h:67 [inline] RIP: 0010:set_page_refcounted mm/internal.h:77 [inline] RIP: 0010:post_alloc_hook mm/page_alloc.c:1775 [inline] RIP: 0010:prep_new_page mm/page_alloc.c:1789 [inline] RIP: 0010:get_page_from_freelist+0x10c1/0x1ea0 mm/page_alloc.c:3181 RSP: 0000:ffff8881571f7818 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff10 RAX: dffffc0000000000 RBX: ffffea000528ad5c RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000014a2b5 RDI: ffffea000528ad60 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffea000528ad40 R12: ffffffffa56254c0 R13: ffffffffa56254c0 R14: ffffea000528ad40 R15: 0000000000000000 __alloc_pages_nodemask+0x211/0x2180 mm/page_alloc.c:4190 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __vmalloc_area_node mm/vmalloc.c:1702 [inline] __vmalloc_node_range+0x283/0x680 mm/vmalloc.c:1760 __vmalloc_node mm/vmalloc.c:1805 [inline] __vmalloc_node_flags_caller+0x68/0x80 mm/vmalloc.c:1827 kvmalloc_node+0x9c/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:531 [inline] xt_alloc_table_info+0x6b/0xe0 net/netfilter/x_tables.c:1062 do_replace.isra.7+0xd2/0x3c0 net/ipv4/netfilter/arp_tables.c:966 do_arpt_set_ctl+0xf4/0x12a net/ipv4/netfilter/arp_tables.c:1456 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x65/0xc0 net/netfilter/nf_sockopt.c:115 ip_setsockopt+0x7b/0xa0 net/ipv4/ip_sockglue.c:1257 tcp_setsockopt+0x80/0xc0 net/ipv4/tcp.c:2806 SYSC_setsockopt net/socket.c:1864 [inline] SyS_setsockopt+0x132/0x220 net/socket.c:1843 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457679 RSP: 002b:00007fb2991bec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457679 RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 000000000000002c R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00007fb2991bf6d4 R13: 00000000004c468c R14: 00000000004d78d0 R15: 00000000ffffffff Code: 90 90 90 65 48 8b 04 25 c0 de 01 00 48 85 c0 74 1a 65 8b 15 9b f7 f0 5c 81 e2 00 01 1f 00 75 0b 8b 90 a8 11 00 00 83 fa 01 74 01 48 c7 c2 00 00 00 81 48 81 ea 00 00 e0 a2 48 03 14 24 48 8b