INFO: task syz-executor0:8131 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D19656 8131 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:00007ffc871e1060 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc871e1060 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc871e10a0 R08: 0000000000000001 R09: 0000000001c3a940 R10: 0000000001c3ac10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor1:8134 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D20440 8134 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:00007ffc16b902f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc16b902f0 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc16b90330 R08: 0000000000000001 R09: 00000000029f5940 R10: 00000000029f5c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 INFO: task syz-executor2:8136 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D20440 8136 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: Bad RIP value. RSP: 002b:00007ffc09ebca70 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc09ebca70 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc09ebcab0 R08: 0000000000000001 R09: 0000000000fda940 R10: 0000000000fdac10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor4:8144 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D20440 8144 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: Bad RIP value. RSP: 002b:00007fff9d00fb60 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff9d00fb60 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff9d00fba0 R08: 0000000000000001 R09: 0000000001270940 R10: 0000000001270c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004 INFO: task udevd:15664 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24168 15664 3866 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: 0033:0x7f3b057cef46 Code: Bad RIP value. RSP: 002b:00007ffd4e608470 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd4e608470 RCX: 00007f3b057cef46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd4e6084d0 R08: 0000000000003d30 R09: 0000000000003d30 R10: 00007f3b060eba70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e608490 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:15671 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24256 15671 3866 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: 0033:0x7f3b057cef46 Code: Bad RIP value. RSP: 002b:00007ffd4e608470 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd4e608470 RCX: 00007f3b057cef46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd4e6084d0 R08: 0000000000003d37 R09: 0000000000003d37 R10: 00007f3b060eba70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e608490 R14: 0000000000000005 R15: 0000000000000005 INFO: task syz-executor3:16863 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D21640 16863 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: Bad RIP value. RSP: 002b:00007fff8cdeea40 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff8cdeea40 RCX: 000000000045666a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff8cdeea80 R08: 0000000000000001 R09: 0000000001c59940 R10: 0000000001c59c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 INFO: task udevd:16928 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24168 16928 3866 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: 0033:0x7f3b057cef46 Code: Bad RIP value. RSP: 002b:00007ffd4e608470 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd4e608470 RCX: 00007f3b057cef46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd4e6084d0 R08: 0000000000004220 R09: 0000000000004220 R10: 00007f3b060eba70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e608490 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:16993 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D24200 16993 3866 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: 0033:0x7f3b057cef46 Code: Bad RIP value. RSP: 002b:00007ffd4e608470 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd4e608470 RCX: 00007f3b057cef46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd4e6084d0 R08: 0000000000004261 R09: 0000000000004261 R10: 00007f3b060eba70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e608490 R14: 0000000000000005 R15: 0000000000000005 INFO: task udevd:17011 blocked for more than 140 seconds. Not tainted 5.0.0-rc2+ #29 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. udevd D25720 17011 3866 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: 0033:0x7f3b057cef46 Code: Bad RIP value. RSP: 002b:00007ffd4e608470 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd4e608470 RCX: 00007f3b057cef46 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd4e6084d0 R08: 0000000000004273 R09: 0000000000004273 R10: 00007f3b060eba70 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e608490 R14: 0000000000000005 R15: 0000000000000005 Showing all locks held in the system: 1 lock held by khungtaskd/1040: #0: 0000000059b0af6e (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 2 locks held by rs:main Q:Reg/7980: 1 lock held by rsyslogd/7982: #0: 00000000dfcd03f6 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/8096: #0: 00000000c91382ba (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000067389079 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8097: #0: 0000000022b6bb53 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000000bf81ae0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8098: #0: 0000000053cffd97 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000006fc07ecc (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8099: #0: 00000000eba53ed8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000035062fd8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8100: #0: 00000000d1bf11ca (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000e0dcdc7d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8101: #0: 00000000b87bc2e9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000c44fd0a4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8102: #0: 0000000072f0f81d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000007163a674 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor0/8131: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor1/8134: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor2/8136: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor4/8144: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/15664: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/15671: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor3/16863: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/16928: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/16993: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by udevd/17011: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 1 lock held by syz-executor2/17249: #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000001357c3c3 (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8710 kernel/fork.c:1917 5 locks held by syz-executor5/18131: #0: 000000007b64ff7d (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x9c3/0x2f00 kernel/events/core.c:10511 #1: 00000000e14100e1 (&pmus_srcu){....}, at: perf_event_alloc.part.0+0x10c1/0x3520 kernel/events/core.c:10070 #2: 00000000e4f1943a (event_mutex){+.+.}, at: perf_uprobe_init+0x1d0/0x290 kernel/trace/trace_event_perf.c:328 #3: 0000000009b10b27 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register kernel/events/uprobes.c:1140 [inline] #3: 0000000009b10b27 (&uprobe->register_rwsem){+.+.}, at: __uprobe_register+0x465/0x8e0 kernel/events/uprobes.c:1112 #4: 000000001357c3c3 (&dup_mmap_sem){++++}, at: percpu_down_write+0x9a/0x540 kernel/locking/percpu-rwsem.c:145 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc2+ #29 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 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.401 msecs NMI backtrace for cpu 0 CPU: 0 PID: 7980 Comm: rs:main Q:Reg Not tainted 5.0.0-rc2+ #29 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x1/0x20 kernel/kcov.c:188 Code: fe ff ff 5d c3 0f 1f 40 00 55 0f b7 d6 0f b7 f7 bf 03 00 00 00 48 89 e5 48 8b 4d 08 e8 d8 fe ff ff 5d c3 66 0f 1f 44 00 00 55 <89> f2 89 fe bf 05 00 00 00 48 89 e5 48 8b 4d 08 e8 ba fe ff ff 5d RSP: 0018:ffff88808755f090 EFLAGS: 00000246 RAX: ffff88808615e040 RBX: 0000000000000001 RCX: ffffffff818efce8 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88808755f0d0 R08: ffff88808615e040 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: ffffffff8881b1a0 R13: 0000000000000000 R14: ffffffff8881b160 R15: ffff8880a9561380 FS: 00007fa092bf6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000018a9000 CR3: 0000000084ba6000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_smp_processor_id+0x1c/0x20 lib/smp_processor_id.c:56 rcu_dynticks_curr_cpu_in_eqs+0x69/0x170 kernel/rcu/tree.c:303 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:932 rcu_read_unlock include/linux/rcupdate.h:657 [inline] is_bpf_text_address+0xe9/0x170 kernel/bpf/core.c:668 kernel_text_address+0x73/0xf0 kernel/extable.c:152 __kernel_text_address+0xd/0x40 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_frame.c:18 [inline] unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:13 __save_stack_trace+0x8a/0xf0 arch/x86/kernel/stacktrace.c:45 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60 save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_kmalloc mm/kasan/common.c:496 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:469 kasan_kmalloc mm/kasan/common.c:504 [inline] kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:411 slab_post_alloc_hook mm/slab.h:444 [inline] slab_alloc mm/slab.c:3381 [inline] kmem_cache_alloc+0x11a/0x710 mm/slab.c:3541 mempool_alloc_slab+0x47/0x60 mm/mempool.c:505 mempool_alloc+0x19f/0x500 mm/mempool.c:385 bio_alloc_bioset+0x3c1/0x720 block/bio.c:489 bio_alloc include/linux/bio.h:393 [inline] blkdev_issue_flush+0xcd/0x300 block/blk-flush.c:446 ext4_sync_file+0xba9/0x14d0 fs/ext4/fsync.c:162 vfs_fsync_range+0x144/0x230 fs/sync.c:197 generic_write_sync include/linux/fs.h:2786 [inline] ext4_file_write_iter+0x67f/0x1410 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1862 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x764/0xb40 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0x105/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa09465419d Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fa092bf4f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000400 RCX: 00007fa09465419d RDX: 0000000000000400 RSI: 0000000001897a90 RDI: 0000000000000005 RBP: 0000000001897a90 R08: 0000000001897e31 R09: 00007fa093fd1dc7 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fa092bf5410 R14: 00000000018b8650 R15: 0000000001897890