[10765] 0 10765 18180 8770 24 3 0 1000 syz-executor.0 [10779] 0 10779 18180 8771 24 3 0 1000 syz-executor.0 [10848] 0 10848 18180 8704 24 3 0 1000 syz-executor.0 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P21819 (detected by 0, t=10503 jiffies, g=38403, c=38402, q=50) kworker/u4:19 R running task 25584 21819 8588 0x80000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] __get_free_pages+0x13/0xa0 mm/page_alloc.c:4305 pud_alloc_one arch/x86/include/asm/pgalloc.h:150 [inline] __pud_alloc+0x35/0x240 mm/memory.c:4198 pud_alloc include/linux/mm.h:1737 [inline] __handle_mm_fault+0x8ee/0x2700 mm/memory.c:4054 handle_mm_fault+0x3c3/0x6da mm/memory.c:4150 faultin_page mm/gup.c:514 [inline] __get_user_pages+0x348/0xe80 mm/gup.c:716 __get_user_pages_locked mm/gup.c:889 [inline] get_user_pages_remote+0x1c5/0x3b0 mm/gup.c:1094 get_arg_page fs/exec.c:216 [inline] copy_strings.isra.0+0x3ac/0x750 fs/exec.c:552 copy_strings_kernel+0x9e/0x110 fs/exec.c:597 do_execveat_common.isra.0+0xd2a/0x1bb0 fs/exec.c:1787 do_execve+0x2c/0x40 fs/exec.c:1847 call_usermodehelper_exec_async+0x28c/0x4c0 kernel/umh.c:100 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 kworker/u4:19 R running task 25584 21819 8588 0x80000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] __get_free_pages+0x13/0xa0 mm/page_alloc.c:4305 pud_alloc_one arch/x86/include/asm/pgalloc.h:150 [inline] __pud_alloc+0x35/0x240 mm/memory.c:4198 pud_alloc include/linux/mm.h:1737 [inline] __handle_mm_fault+0x8ee/0x2700 mm/memory.c:4054 handle_mm_fault+0x3c3/0x6da mm/memory.c:4150 faultin_page mm/gup.c:514 [inline] __get_user_pages+0x348/0xe80 mm/gup.c:716 __get_user_pages_locked mm/gup.c:889 [inline] get_user_pages_remote+0x1c5/0x3b0 mm/gup.c:1094 get_arg_page fs/exec.c:216 [inline] copy_strings.isra.0+0x3ac/0x750 fs/exec.c:552 copy_strings_kernel+0x9e/0x110 fs/exec.c:597 do_execveat_common.isra.0+0xd2a/0x1bb0 fs/exec.c:1787 do_execve+0x2c/0x40 fs/exec.c:1847 call_usermodehelper_exec_async+0x28c/0x4c0 kernel/umh.c:100 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 [10854] 0 10854 18180 8770 24 3 0 1000 syz-executor.1 [11030] 0 11030 18147 8710 24 3 0 1000 syz-executor.3 [11053] 0 11053 18180 13172 32 3 0 1000 syz-executor.1 [11067] 0 11067 18147 8710 24 3 0 1000 syz-executor.3 [11076] 0 11076 18180 13172 32 3 0 1000 syz-executor.0 [11102] 0 11102 18147 8710 24 3 0 1000 syz-executor.3 [11139] 0 11139 18180 8704 24 3 0 1000 syz-executor.0 [11161] 0 11161 18180 8770 24 3 0 1000 syz-executor.0 [11242] 0 11242 18180 13172 32 3 0 1000 syz-executor.3 [11387] 0 11387 18180 13172 32 3 0 1000 syz-executor.0 [11437] 0 11437 18180 13172 32 3 0 1000 syz-executor.0 [11577] 0 11577 18180 13172 32 3 0 1000 syz-executor.1 [11594] 0 11594 18180 13172 32 3 0 1000 syz-executor.0 [11599] 0 11599 18180 13172 32 3 0 1000 syz-executor.3 [11638] 0 11638 18180 13172 32 3 0 1000 syz-executor.0 [11685] 0 11685 18180 8770 24 3 0 1000 syz-executor.3 [11688] 0 11688 18180 8770 24 3 0 1000 syz-executor.1 [11778] 0 11778 18180 13172 32 3 0 1000 syz-executor.3 [11816] 0 11816 18180 13172 32 3 0 1000 syz-executor.1 [11921] 0 11921 18180 8704 24 3 0 1000 syz-executor.1 [11926] 0 11926 18180 8704 24 3 0 1000 syz-executor.3 [11994] 0 11994 18180 13172 32 3 0 1000 syz-executor.3 [12068] 0 12068 18180 13172 32 3 0 1000 syz-executor.1 [12186] 0 12186 18180 13172 32 3 0 1000 syz-executor.3 [12298] 0 12298 18180 13172 32 3 0 1000 syz-executor.1 [12405] 0 12405 18180 13172 32 3 0 1000 syz-executor.1 [12411] 0 12411 18180 8770 24 3 0 1000 syz-executor.3 [12572] 0 12572 18180 13172 32 3 0 1000 syz-executor.1 [12576] 0 12576 18180 13172 32 3 0 1000 syz-executor.3 [12626] 0 12626 18180 8704 24 3 0 1000 syz-executor.3 [12659] 0 12659 18180 8770 24 3 0 1000 syz-executor.3 [12686] 0 12686 18180 8770 24 3 0 1000 syz-executor.1 [12775] 0 12775 18180 13172 32 3 0 1000 syz-executor.3 [13378] 0 13378 18180 8704 24 3 0 1000 syz-executor.3 [13989] 0 13989 18180 13172 32 3 0 1000 syz-executor.0 [14282] 0 14282 18180 8770 24 3 0 1000 syz-executor.1 [15632] 0 15632 18180 8770 24 3 0 1000 syz-executor.1 [16716] 0 16716 18147 8711 25 3 0 1000 syz-executor.2 [16729] 0 16729 18246 8810 25 3 0 1000 syz-executor.2 [16842] 0 16842 18180 8704 24 3 0 1000 syz-executor.2 [17875] 0 17875 18180 13172 32 3 0 1000 syz-executor.2 [17992] 0 17992 18147 8711 24 3 0 1000 syz-executor.2 [18090] 0 18090 18147 8711 24 3 0 1000 syz-executor.2 [18100] 0 18100 18211 8713 25 3 0 1000 syz-executor.2 [18129] 0 18129 18180 8770 24 3 0 1000 syz-executor.2 [18738] 0 18738 18180 8770 24 3 0 1000 syz-executor.2 [19036] 0 19036 18147 8710 24 3 0 1000 syz-executor.2 [19039] 0 19039 18178 8713 25 3 0 1000 syz-executor.2 [19248] 0 19248 18180 8770 24 3 0 1000 syz-executor.2 [19284] 0 19284 18180 13172 32 3 0 1000 syz-executor.2 [19396] 0 19396 18180 13172 32 3 0 1000 syz-executor.2 [19433] 0 19433 18180 8704 24 3 0 1000 syz-executor.2 [19566] 0 19566 18180 8770 24 3 0 1000 syz-executor.2 [19619] 0 19619 18180 8770 24 3 0 1000 syz-executor.2 [19889] 0 19889 18180 8770 24 3 0 1000 syz-executor.2 [19918] 0 19918 18244 13174 32 3 0 1000 syz-executor.2 [19988] 0 19988 18180 8704 24 3 0 1000 syz-executor.2 [20022] 0 20022 18180 8704 24 3 0 1000 syz-executor.2 [20671] 0 20671 18180 13172 32 3 0 1000 syz-executor.2 [20714] 0 20714 18244 13172 32 3 0 1000 syz-executor.2 [20821] 0 20821 18180 8772 25 3 0 1000 syz-executor.2 [20897] 0 20897 18180 8713 25 3 0 1000 syz-executor.2 [20907] 0 20907 18178 8713 25 3 0 1000 syz-executor.2 [21295] 0 21295 18180 8771 25 3 0 1000 syz-executor.0 [21395] 0 21395 18180 8704 24 3 0 1000 syz-executor.2 [21464] 0 21464 5365 171 16 3 0 -1000 udevd [21466] 0 21466 18180 13172 32 3 0 1000 syz-executor.0 [21695] 0 21695 5365 171 16 3 0 -1000 udevd [21732] 0 21732 5365 171 16 3 0 -1000 udevd [21733] 0 21733 5365 171 16 3 0 -1000 udevd [21736] 0 21736 5365 171 16 3 0 -1000 udevd [21738] 0 21738 3649 43 13 3 0 0 getty [21739] 0 21739 3649 42 13 3 0 0 getty [21740] 0 21740 3649 42 13 3 0 0 getty [21741] 0 21741 3649 44 13 3 0 0 getty [21742] 0 21742 3649 42 12 3 0 0 getty [21743] 0 21743 3649 42 13 3 0 0 getty [21774] 0 21774 18211 14675 34 4 0 1000 syz-executor.2 [21778] 0 21778 101 1 5 3 0 0 modprobe [21779] 0 21779 635 9 6 3 0 0 modprobe [21788] 0 21788 95 1 4 3 0 0 modprobe [21791] 0 21791 95 1 4 3 0 0 modprobe [21793] 0 21793 95 1 4 3 0 0 modprobe [21794] 0 21794 1 1 1 1 0 0 modprobe [21796] 0 21796 95 1 4 3 0 0 modprobe [21799] 0 21799 95 1 4 3 0 0 modprobe [21802] 0 21802 55 1 1 2 0 0 modprobe [21814] 0 21814 95 1 3 3 0 0 modprobe [21815] 0 21815 95 1 4 3 0 0 modprobe [21816] 0 21816 635 9 6 3 0 0 modprobe [21817] 0 21817 1547 11 7 3 0 0 modprobe [21821] 0 21821 1 1 1 1 0 0 modprobe Out of memory: Kill process 21774 (syz-executor.2) score 1008 or sacrifice child Killed process 21774 (syz-executor.2) total-vm:72844kB, anon-rss:17992kB, file-rss:40708kB, shmem-rss:0kB oom_reaper: reaped process 21774 (syz-executor.2), now anon-rss:17992kB, file-rss:5892kB, shmem-rss:0kB SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8224 sclass=netlink_route_socket pig=21858 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=14392 sclass=netlink_route_socket pig=21858 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8224 sclass=netlink_route_socket pig=21877 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=14392 sclass=netlink_route_socket pig=21877 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8224 sclass=netlink_route_socket pig=21885 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=14392 sclass=netlink_route_socket pig=21885 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8224 sclass=netlink_route_socket pig=21898 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=14392 sclass=netlink_route_socket pig=21898 comm=syz-executor.1