[ 53.043819][ T27] audit: type=1800 audit(1580723216.158:30): pid=7880 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.214' (ECDSA) to the list of known hosts.
2020/02/03 09:47:04 fuzzer started
2020/02/03 09:47:06 dialing manager at 10.128.0.105:41149
2020/02/03 09:47:06 syscalls: 2904
2020/02/03 09:47:06 code coverage: enabled
2020/02/03 09:47:06 comparison tracing: enabled
2020/02/03 09:47:06 extra coverage: enabled
2020/02/03 09:47:06 setuid sandbox: enabled
2020/02/03 09:47:06 namespace sandbox: enabled
2020/02/03 09:47:06 Android sandbox: /sys/fs/selinux/policy does not exist
2020/02/03 09:47:06 fault injection: enabled
2020/02/03 09:47:06 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/02/03 09:47:06 net packet injection: enabled
2020/02/03 09:47:06 net device setup: enabled
2020/02/03 09:47:06 concurrency sanitizer: enabled
2020/02/03 09:47:06 devlink PCI setup: PCI device 0000:00:10.0 is not available
syzkaller login: [ 64.636169][ T0] ==================================================================
[ 64.644460][ T0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64
[ 64.653472][ T0]
[ 64.655804][ T0] write to 0xffffffff8624c7c8 of 8 bytes by interrupt on cpu 0:
[ 64.663451][ T0] tick_do_update_jiffies64+0x100/0x250
[ 64.669000][ T0] tick_sched_do_timer+0xd4/0xe0
[ 64.673956][ T0] tick_sched_timer+0x43/0xe0
[ 64.678650][ T0] __hrtimer_run_queues+0x274/0x5f0
[ 64.683848][ T0] hrtimer_interrupt+0x22a/0x480
[ 64.688806][ T0] smp_apic_timer_interrupt+0xdc/0x280
[ 64.694260][ T0] apic_timer_interrupt+0xf/0x20
[ 64.699307][ T0] kcsan_setup_watchpoint+0x1d4/0x460
[ 64.704703][ T0] __tsan_read1+0xc2/0x100
[ 64.709138][ T0] kallsyms_expand_symbol.constprop.0+0x103/0x160
[ 64.715573][ T0] kallsyms_lookup_name+0x7f/0x120
[ 64.720685][ T0] debugfs_write+0x14b/0x2d0
[ 64.725297][ T0] full_proxy_write+0xbd/0x100
[ 64.730074][ T0] __vfs_write+0x67/0xc0
[ 64.734330][ T0] vfs_write+0x18a/0x390
[ 64.738594][ T0] ksys_write+0xd5/0x1b0
[ 64.743882][ T0] __x64_sys_write+0x4c/0x60
[ 64.748471][ T0] do_syscall_64+0xcc/0x3a0
[ 64.753149][ T0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 64.759038][ T0]
[ 64.761393][ T0] read to 0xffffffff8624c7c8 of 8 bytes by task 0 on cpu 1:
[ 64.769494][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 64.774958][ T0] tick_irq_enter+0x139/0x1c0
[ 64.779816][ T0] irq_enter+0x4f/0x60
[ 64.783893][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 64.789351][ T0] apic_timer_interrupt+0xf/0x20
[ 64.794405][ T0] native_safe_halt+0xe/0x10
[ 64.799005][ T0] arch_cpu_idle+0xa/0x10
[ 64.803343][ T0] default_idle_call+0x1e/0x40
[ 64.808201][ T0] do_idle+0x1c2/0x290
[ 64.812276][ T0] cpu_startup_entry+0x1b/0x20
[ 64.817047][ T0] start_secondary+0x168/0x1b0
[ 64.821826][ T0] secondary_startup_64+0xa4/0xb0
[ 64.826834][ T0]
[ 64.829257][ T0] Reported by Kernel Concurrency Sanitizer on:
[ 64.835439][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc1-syzkaller #0
[ 64.843342][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 64.853395][ T0] ==================================================================
[ 64.861456][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 64.868051][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-rc1-syzkaller #0
[ 64.876109][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 64.886165][ T0] Call Trace:
[ 64.889467][ T0]
[ 64.892334][ T0] dump_stack+0x11d/0x181
[ 64.896805][ T0] panic+0x210/0x640
[ 64.900707][ T0] ? vprintk_func+0x8d/0x140
[ 64.905308][ T0] kcsan_report.cold+0xc/0xd
[ 64.910358][ T0] kcsan_setup_watchpoint+0x3fe/0x460
[ 64.915756][ T0] __tsan_read8+0xc6/0x100
[ 64.920179][ T0] tick_do_update_jiffies64+0x2b/0x250
[ 64.925774][ T0] tick_irq_enter+0x139/0x1c0
[ 64.930471][ T0] irq_enter+0x4f/0x60
[ 64.934544][ T0] smp_apic_timer_interrupt+0x55/0x280
[ 64.940004][ T0] apic_timer_interrupt+0xf/0x20
[ 64.944929][ T0]
[ 64.947882][ T0] RIP: 0010:native_safe_halt+0xe/0x10
[ 64.953270][ T0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 4c e6 59 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 3c e6 59 00 fb f4 cc 55 48 89 e5 41 55 41 54 53 e8 d2 57 91 fc e8 fd da ab fd 0f
[ 64.973122][ T0] RSP: 0018:ffffc90000cd3e70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 64.981567][ T0] RAX: 0000000000000001 RBX: ffff88812b785040 RCX: ffffffff82546c55
[ 64.989547][ T0] RDX: 0000000000000000 RSI: ffffffff82546c5e RDI: 0000000000000005
[ 64.997643][ T0] RBP: ffffc90000cd3e90 R08: ffff88812b785040 R09: 0000ffff85a2d168
[ 65.005771][ T0] R10: 0000c90000cd3e80 R11: 0000ffff85a2d16f R12: 0000000000000001
[ 65.013761][ T0] R13: ffff88812b785040 R14: 0000000000000000 R15: 0000000000000000
[ 65.023218][ T0] ? debug_smp_processor_id+0x35/0x137
[ 65.028696][ T0] ? debug_smp_processor_id+0x3e/0x137
[ 65.034169][ T0] ? default_idle+0x26/0x180
[ 65.038769][ T0] arch_cpu_idle+0xa/0x10
[ 65.043215][ T0] default_idle_call+0x1e/0x40
[ 65.047986][ T0] do_idle+0x1c2/0x290
[ 65.052175][ T0] ? complete+0x44/0x50
[ 65.056355][ T0] cpu_startup_entry+0x1b/0x20
[ 65.061145][ T0] start_secondary+0x168/0x1b0
[ 65.065913][ T0] secondary_startup_64+0xa4/0xb0
[ 65.121069][ T0] Kernel Offset: disabled
[ 65.125427][ T0] Rebooting in 86400 seconds..