Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.257786][ T7960] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 52.350441][ T7964] ================================================================== [ 52.358689][ T7964] BUG: KASAN: null-ptr-deref in reclaim_high.constprop.0+0xa6/0x1e0 [ 52.366670][ T7964] Read of size 8 at addr 0000000000000138 by task syz-executor037/7964 [ 52.374882][ T7964] [ 52.377196][ T7964] CPU: 1 PID: 7964 Comm: syz-executor037 Not tainted 5.0.0-rc1-next-20190110 #9 [ 52.386188][ T7964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.396239][ T7964] Call Trace: [ 52.399530][ T7964] dump_stack+0x1db/0x2d0 [ 52.403858][ T7964] ? dump_stack_print_info.cold+0x20/0x20 [ 52.409574][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.415190][ T7964] ? vprintk_func+0x86/0x189 [ 52.419772][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.425381][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.430992][ T7964] kasan_report.cold+0x5/0x40 [ 52.435679][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.441294][ T7964] check_memory_region+0x123/0x190 [ 52.446390][ T7964] kasan_check_read+0x11/0x20 [ 52.451045][ T7964] reclaim_high.constprop.0+0xa6/0x1e0 [ 52.456481][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.461744][ T7964] ? memcg_oom_wake_function+0x6b0/0x6b0 [ 52.467375][ T7964] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.472808][ T7964] ? syscall_return_slowpath+0x519/0x5f0 [ 52.478420][ T7964] ? trace_hardirqs_off_caller+0x300/0x300 [ 52.484203][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.489466][ T7964] ? retint_kernel+0x2d/0x2d [ 52.494040][ T7964] mem_cgroup_handle_over_high+0xc1/0x180 [ 52.499765][ T7964] exit_to_usermode_loop+0x299/0x3b0 [ 52.505030][ T7964] ? ret_from_fork+0x15/0x50 [ 52.509603][ T7964] ? syscall_trace_enter+0x12a0/0x12a0 [ 52.515043][ T7964] ? _raw_spin_unlock_irq+0x28/0x90 [ 52.520222][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.525515][ T7964] syscall_return_slowpath+0x519/0x5f0 [ 52.530959][ T7964] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.536668][ T7964] ? _raw_spin_unlock_irq+0x5e/0x90 [ 52.541848][ T7964] ret_from_fork+0x15/0x50 [ 52.546247][ T7964] RIP: 0033:0x44034a [ 52.550139][ T7964] Code: Bad RIP value. [ 52.554190][ T7964] RSP: 002b:00007ffc31cd3040 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 52.562573][ T7964] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000044034a [ 52.570536][ T7964] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 52.578516][ T7964] RBP: 00007ffc31cd3060 R08: 0000000000000001 R09: 0000000002027880 [ 52.586468][ T7964] R10: 0000000002027b50 R11: 0000000000000246 R12: 0000000000000001 [ 52.594422][ T7964] R13: 000000000000cc59 R14: 0000000000000000 R15: 0000000000000000 [ 52.602378][ T7964] ================================================================== [ 52.610412][ T7964] Disabling lock debugging due to kernel taint [ 52.617545][ T7964] Kernel panic - not syncing: panic_on_warn set ... [ 52.624139][ T7964] CPU: 1 PID: 7964 Comm: syz-executor037 Tainted: G B 5.0.0-rc1-next-20190110 #9 [ 52.634534][ T7964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.644570][ T7964] Call Trace: [ 52.647845][ T7964] dump_stack+0x1db/0x2d0 [ 52.652162][ T7964] ? dump_stack_print_info.cold+0x20/0x20 [ 52.657876][ T7964] panic+0x2cb/0x65c [ 52.661762][ T7964] ? add_taint.cold+0x16/0x16 [ 52.666415][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.672056][ T7964] ? preempt_schedule+0x4b/0x60 [ 52.676882][ T7964] ? ___preempt_schedule+0x16/0x18 [ 52.681967][ T7964] ? trace_hardirqs_on+0xb4/0x310 [ 52.686969][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.692591][ T7964] end_report+0x47/0x4f [ 52.696733][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.702344][ T7964] kasan_report.cold+0xe/0x40 [ 52.707002][ T7964] ? reclaim_high.constprop.0+0xa6/0x1e0 [ 52.712626][ T7964] check_memory_region+0x123/0x190 [ 52.717714][ T7964] kasan_check_read+0x11/0x20 [ 52.722379][ T7964] reclaim_high.constprop.0+0xa6/0x1e0 [ 52.727823][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.733117][ T7964] ? memcg_oom_wake_function+0x6b0/0x6b0 [ 52.738729][ T7964] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.744190][ T7964] ? syscall_return_slowpath+0x519/0x5f0 [ 52.749802][ T7964] ? trace_hardirqs_off_caller+0x300/0x300 [ 52.755647][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.760929][ T7964] ? retint_kernel+0x2d/0x2d [ 52.765519][ T7964] mem_cgroup_handle_over_high+0xc1/0x180 [ 52.771221][ T7964] exit_to_usermode_loop+0x299/0x3b0 [ 52.776507][ T7964] ? ret_from_fork+0x15/0x50 [ 52.781086][ T7964] ? syscall_trace_enter+0x12a0/0x12a0 [ 52.786521][ T7964] ? _raw_spin_unlock_irq+0x28/0x90 [ 52.791698][ T7964] ? lockdep_hardirqs_on+0x415/0x5d0 [ 52.796963][ T7964] syscall_return_slowpath+0x519/0x5f0 [ 52.802402][ T7964] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.808101][ T7964] ? _raw_spin_unlock_irq+0x5e/0x90 [ 52.813300][ T7964] ret_from_fork+0x15/0x50 [ 52.817692][ T7964] RIP: 0033:0x44034a [ 52.821571][ T7964] Code: Bad RIP value. [ 52.825610][ T7964] RSP: 002b:00007ffc31cd3040 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 52.833995][ T7964] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000044034a [ 52.841941][ T7964] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 52.849888][ T7964] RBP: 00007ffc31cd3060 R08: 0000000000000001 R09: 0000000002027880 [ 52.857836][ T7964] R10: 0000000002027b50 R11: 0000000000000246 R12: 0000000000000001 [ 52.865784][ T7964] R13: 000000000000cc59 R14: 0000000000000000 R15: 0000000000000000 [ 52.874695][ T7964] Kernel Offset: disabled [ 52.879015][ T7964] Rebooting in 86400 seconds..