audit: type=1400 audit(2000000600.053:33191): avc: denied { map } for pid=1548 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 INFO: task syz-executor0:8328 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D20440 8328 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: ff 48 8b 54 24 28 e9 ad fe ff ff 8b 9c 24 88 00 00 00 e9 6f ff ff ff 48 8b 6c 24 70 48 83 c4 78 c3 48 8b 6c 24 70 48 83 c4 78 e8 30 38 fd ff 0f 0b e8 09 39 fd ff 0f 0b e8 d2 38 00 00 e9 8d RSP: 002b:00007ffefe4af4f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffefe4af4f0 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffefe4af530 R08: 0000000000000001 R09: 0000000000fc0940 R10: 0000000000fc0c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor1:8331 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D20440 8331 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: ff 48 8b 54 24 28 e9 ad fe ff ff 8b 9c 24 88 00 00 00 e9 6f ff ff ff 48 8b 6c 24 70 48 83 c4 78 c3 48 8b 6c 24 70 48 83 c4 78 e8 30 38 fd ff 0f 0b e8 09 39 fd ff 0f 0b e8 d2 38 00 00 e9 8d RSP: 002b:00007ffd49863270 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd49863270 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd498632b0 R08: 0000000000000001 R09: 000000000161a940 R10: 000000000161ac10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 INFO: task syz-executor2:8334 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D20088 8334 1 0x00000006 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: ff 48 8b 54 24 28 e9 ad fe ff ff 8b 9c 24 88 00 00 00 e9 6f ff ff ff 48 8b 6c 24 70 48 83 c4 78 c3 48 8b 6c 24 70 48 83 c4 78 e8 30 38 fd ff 0f 0b e8 09 39 fd ff 0f 0b e8 d2 38 00 00 e9 8d RSP: 002b:00007ffc2bc812f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc2bc812f0 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc2bc81330 R08: 0000000000000001 R09: 0000000000ebe940 R10: 0000000000ebec10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor3:31602 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D21640 31602 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: ff 48 8b 54 24 28 e9 ad fe ff ff 8b 9c 24 88 00 00 00 e9 6f ff ff ff 48 8b 6c 24 70 48 83 c4 78 c3 48 8b 6c 24 70 48 83 c4 78 e8 30 38 fd ff 0f 0b e8 09 39 fd ff 0f 0b e8 d2 38 00 00 e9 8d RSP: 002b:00007ffcafb1a150 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffcafb1a150 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffcafb1a190 R08: 0000000000000001 R09: 0000000001f53940 R10: 0000000001f53c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 INFO: task syz-executor4:31605 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D20440 31605 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45666a Code: ff 48 8b 54 24 28 e9 ad fe ff ff 8b 9c 24 88 00 00 00 e9 6f ff ff ff 48 8b 6c 24 70 48 83 c4 78 c3 48 8b 6c 24 70 48 83 c4 78 e8 30 38 fd ff 0f 0b e8 09 39 fd ff 0f 0b e8 d2 38 00 00 e9 8d RSP: 002b:00007fffed03fc00 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fffed03fc00 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fffed03fc40 R08: 0000000000000001 R09: 0000000000b8d940 R10: 0000000000b8dc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004 INFO: task udevd:454 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24136 454 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1c0cdcaf46 Code: Bad RIP value. RSP: 002b:00007fff2e705830 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff2e705830 RCX: 00007f1c0cdcaf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff2e705890 R08: 00000000000001c6 R09: 00000000000001c6 R10: 00007f1c0d6e7a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2e705850 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:745 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D23832 745 3867 0x00000000 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 __rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:280 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:297 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] __percpu_down_read kernel/locking/percpu-rwsem.c:85 [inline] __percpu_down_read+0x142/0x1d0 kernel/locking/percpu-rwsem.c:41 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:49 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] uprobe_start_dup_mmap+0xbf/0xe0 kernel/events/uprobes.c:1525 dup_mmap kernel/fork.c:472 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x3041/0x8710 kernel/fork.c:1917 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1c0cdcaf46 Code: Bad RIP value. RSP: 002b:00007fff2e705830 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff2e705830 RCX: 00007f1c0cdcaf46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff2e705890 R08: 00000000000002e9 R09: 00000000000002e9 R10: 00007f1c0d6e7a70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2e705850 R14: 0000000000000005 R15: 0000000000000005 INFO: task syz-executor5:1532 blocked for more than 140 seconds. Not tainted 5.0.0-rc3+ #44 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D22840 1532 31604 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 percpu_down_write+0x430/0x540 kernel/locking/percpu-rwsem.c:162 register_for_each_vma+0x99/0xef0 kernel/events/uprobes.c:1012 __uprobe_register kernel/events/uprobes.c:1144 [inline] __uprobe_register+0x507/0x8e0 kernel/events/uprobes.c:1112 uprobe_register+0x28/0x30 kernel/events/uprobes.c:1159 probe_event_enable+0x62d/0xf20 kernel/trace/trace_uprobe.c:924 trace_uprobe_register+0x69b/0xcf0 kernel/trace/trace_uprobe.c:1200 perf_trace_event_reg kernel/trace/trace_event_perf.c:124 [inline] perf_trace_event_init+0x500/0x990 kernel/trace/trace_event_perf.c:199 perf_uprobe_init+0x1db/0x290 kernel/trace/trace_event_perf.c:329 perf_uprobe_event_init+0x106/0x1a0 kernel/events/core.c:8503 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9770 perf_init_event kernel/events/core.c:9801 [inline] perf_event_alloc.part.0+0x20bf/0x3520 kernel/events/core.c:10074 perf_event_alloc kernel/events/core.c:10430 [inline] __do_sys_perf_event_open+0xbb5/0x2f00 kernel/events/core.c:10531 __se_sys_perf_event_open kernel/events/core.c:10420 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10420 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 01 00 00 48 89 74 24 38 48 89 7c 24 30 4c 89 44 24 28 44 88 4c 24 27 48 89 54 24 50 48 89 44 24 40 48 c7 80 f8 00 00 00 00 00 <00> 00 4c 89 90 00 01 00 00 8b 0d b8 68 23 01 4c 8d 90 f0 00 00 00 RSP: 002b:00007f447f739c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f447f73a6d4 R13: 00000000004c46c5 R14: 00000000004d7cc8 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1040: #0: 000000008fd069e1 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 1 lock held by rsyslogd/8168: #0: 000000001338907b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/8290: #0: 000000003d872735 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000ae533351 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8291: #0: 00000000cf5103f6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000e7407549 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8292: #0: 000000002d36e72a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000055b1e937 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8293: #0: 00000000c248b822 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000000febb503 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8294: #0: 000000003cc7fedc (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000a34cf781 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8295: #0: 00000000fc1f921a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000e65b6bba (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8296: #0: 0000000006c15190 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000b5be6519 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor0/8328: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor1/8331: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor2/8334: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor1/27041: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor3/31602: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor4/31605: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/454: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/745: #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 0000000052238ee0 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 5 locks held by syz-executor5/1532: #0: 000000003eb82e21 (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x9c3/0x2f00 kernel/events/core.c:10511 #1: 00000000f130c70d (&pmus_srcu){....}, at: perf_event_alloc.part.0+0x10c1/0x3520 kernel/events/core.c:10070 #2: 00000000a90b0d0a (event_mutex){+.+.}, at: perf_uprobe_init+0x1d0/0x290 kernel/trace/trace_event_perf.c:328 #3: 0000000007ba1e7f (&uprobe->register_rwsem){+.+.}, at: __uprobe_register kernel/events/uprobes.c:1140 [inline] #3: 0000000007ba1e7f (&uprobe->register_rwsem){+.+.}, at: __uprobe_register+0x465/0x8e0 kernel/events/uprobes.c:1112 #4: 0000000052238ee0 (&dup_mmap_sem){++++}, at: percpu_down_write+0x9a/0x540 kernel/locking/percpu-rwsem.c:145 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc3+ #44 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1db/0x2d0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0xbbb/0x1170 kernel/hung_task.c:287 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:57