hrtimer: interrupt took 25305 ns ====================================================== WARNING: possible circular locking dependency detected 4.14.307-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/9900 is trying to acquire lock: (event_mutex){+.+.}, at: [] ftrace_profile_set_filter+0x64/0x1c0 kernel/trace/trace_events_filter.c:2268 but task is already holding lock: (&cpuctx_mutex){+.+.}, at: [] perf_event_ctx_lock_nested+0x14d/0x2c0 kernel/events/core.c:1241 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&cpuctx_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_event_init_cpu+0xb7/0x170 kernel/events/core.c:11293 Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! perf_event_init+0x2cc/0x308 kernel/events/core.c:11340 start_kernel+0x45d/0x763 init/main.c:624 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #3 (pmus_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 File: /root/syzkaller-testdir522233311/syzkaller.jAEdBs/9/bus PID: 9911 Comm: syz-executor.0 perf_event_init_cpu+0x2c/0x170 kernel/events/core.c:11287 cpuhp_invoke_callback+0x1e6/0x1a80 kernel/cpu.c:186 cpuhp_up_callbacks kernel/cpu.c:574 [inline] _cpu_up+0x21e/0x520 kernel/cpu.c:1193 do_cpu_up+0x9a/0x160 kernel/cpu.c:1229 smp_init+0x197/0x1ac kernel/smp.c:578 kernel_init_freeable+0x406/0x626 init/main.c:1074 kernel_init+0xd/0x166 init/main.c:1006 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 -> #2 (cpu_hotplug_lock.rw_sem){++++}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x39/0xc0 kernel/cpu.c:297 static_key_slow_inc+0xe/0x20 kernel/jump_label.c:123 syz-executor.0 (9911) used greatest stack depth: 24696 bytes left tracepoint_add_func+0x747/0xa40 kernel/tracepoint.c:269 tracepoint_probe_register_prio kernel/tracepoint.c:331 [inline] tracepoint_probe_register+0x8c/0xc0 kernel/tracepoint.c:352 trace_event_reg+0x272/0x330 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x424/0xa30 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x79/0xf0 kernel/events/core.c:8145 perf_try_init_event+0x15b/0x1f0 kernel/events/core.c:9381 perf_init_event kernel/events/core.c:9419 [inline] perf_event_alloc.part.0+0xe2d/0x2640 kernel/events/core.c:9679 perf_event_alloc kernel/events/core.c:10049 [inline] SYSC_perf_event_open kernel/events/core.c:10153 [inline] SyS_perf_event_open+0x683/0x2530 kernel/events/core.c:10039 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #1 (tracepoints_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 tracepoint_probe_register_prio kernel/tracepoint.c:327 [inline] tracepoint_probe_register+0x68/0xc0 kernel/tracepoint.c:352 trace_event_reg+0x272/0x330 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x424/0xa30 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x79/0xf0 kernel/events/core.c:8145 perf_try_init_event+0x15b/0x1f0 kernel/events/core.c:9381 perf_init_event kernel/events/core.c:9419 [inline] perf_event_alloc.part.0+0xe2d/0x2640 kernel/events/core.c:9679 perf_event_alloc kernel/events/core.c:10049 [inline] SYSC_perf_event_open kernel/events/core.c:10153 [inline] SyS_perf_event_open+0x683/0x2530 kernel/events/core.c:10039 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (event_mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 ftrace_profile_set_filter+0x64/0x1c0 kernel/trace/trace_events_filter.c:2268 perf_event_set_filter kernel/events/core.c:8729 [inline] _perf_ioctl+0x12b3/0x1a60 kernel/events/core.c:4852 perf_ioctl+0x55/0x80 kernel/events/core.c:4889 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 other info that might help us debug this: Chain exists of: event_mutex --> pmus_lock --> &cpuctx_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&cpuctx_mutex); lock(pmus_lock); lock(&cpuctx_mutex); lock(event_mutex); *** DEADLOCK *** 1 lock held by syz-executor.2/9900: #0: (&cpuctx_mutex){+.+.}, at: [] perf_event_ctx_lock_nested+0x14d/0x2c0 kernel/events/core.c:1241 stack backtrace: CPU: 0 PID: 9900 Comm: syz-executor.2 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 ftrace_profile_set_filter+0x64/0x1c0 kernel/trace/trace_events_filter.c:2268 perf_event_set_filter kernel/events/core.c:8729 [inline] _perf_ioctl+0x12b3/0x1a60 kernel/events/core.c:4852 perf_ioctl+0x55/0x80 kernel/events/core.c:4889 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f846260c0f9 RSP: 002b:00007f8460b7e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f846272bf80 RCX: 00007f846260c0f9 RDX: 00000000200007c0 RSI: 0000000040082406 RDI: 0000000000000005 RBP: 00007f8462667ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe225e745f R14: 00007f8460b7e300 R15: 0000000000022000 ====================================================== WARNING: the mand mount option is being deprecated and will be removed in v5.15! ====================================================== EXT4-fs (loop3): can't mount with dioread_nolock if block size != PAGE_SIZE EXT4-fs (loop4): can't mount with dioread_nolock if block size != PAGE_SIZE kvm [10089]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 kauditd_printk_skb: 17 callbacks suppressed audit: type=1800 audit(1677729108.811:49): pid=10099 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=13883 res=0 EXT4-fs (loop2): journaled quota format not specified kvm [10117]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 kvm [10146]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 audit: type=1800 audit(1677729109.161:50): pid=10170 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=13966 res=0 audit: type=1800 audit(1677729109.181:51): pid=10171 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=13971 res=0 kvm [10190]: vcpu0, guest rIP: 0xfff0 Hyper-V uhandled wrmsr: 0x40000020 data 0x0 audit: type=1800 audit(1677729109.551:52): pid=10200 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=13980 res=0 audit: type=1804 audit(1677729109.631:53): pid=10201 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir223837371/syzkaller.SEkNy5/24/file0" dev="sda1" ino=13980 res=1 audit: type=1800 audit(1677729110.011:54): pid=10224 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=13992 res=0 audit: type=1800 audit(1677729110.291:55): pid=10244 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="bus" dev="sda1" ino=14000 res=0 audit: type=1800 audit(1677729110.341:56): pid=10254 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=13993 res=0 audit: type=1800 audit(1677729110.381:57): pid=10258 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=13994 res=0 audit: type=1800 audit(1677729110.481:58): pid=10260 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=14003 res=0 kauditd_printk_skb: 10 callbacks suppressed audit: type=1800 audit(1677729112.461:69): pid=10312 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="bus" dev="sda1" ino=14008 res=0 audit: type=1800 audit(1677729112.471:70): pid=10314 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="bus" dev="sda1" ino=14009 res=0 audit: type=1800 audit(1677729112.961:71): pid=10318 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=14010 res=0 audit: type=1800 audit(1677729112.961:72): pid=10317 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=14011 res=0 audit: type=1800 audit(1677729113.161:73): pid=10319 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=14013 res=0 audit: type=1804 audit(1677729113.661:74): pid=10320 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir2286951471/syzkaller.jFAU2Q/40/file0" dev="sda1" ino=14011 res=1 audit: type=1804 audit(1677729113.671:75): pid=10319 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir223837371/syzkaller.SEkNy5/27/file0" dev="sda1" ino=14013 res=1 overlayfs: failed to resolve 'f½7le': -2 audit: type=1800 audit(1677729114.271:76): pid=10336 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=13999 res=0 audit: type=1804 audit(1677729114.351:77): pid=10338 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir2286951471/syzkaller.jFAU2Q/41/file0" dev="sda1" ino=13999 res=1 audit: type=1800 audit(1677729114.761:78): pid=10350 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=13995 res=0 overlayfs: failed to resolve 'f½7le': -2