[ 72.597781][ T28] audit: type=1800 audit(1579434789.443:24): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 73.448260][ T28] audit: type=1800 audit(1579434790.413:25): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 73.468996][ T28] audit: type=1800 audit(1579434790.423:26): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 84.871633][ C1] ================================================================== [ 84.879916][ C1] BUG: KASAN: slab-out-of-bounds in bitmap_port_gc+0x112/0x4f0 [ 84.887540][ C1] Read of size 8 at addr ffff8880a8c62d00 by task syz-executor805/10212 [ 84.895851][ C1] [ 84.898240][ C1] CPU: 1 PID: 10212 Comm: syz-executor805 Not tainted 5.5.0-rc5-syzkaller #0 [ 84.907221][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.920454][ C1] Call Trace: [ 84.923732][ C1] [ 84.926645][ C1] dump_stack+0x197/0x210 [ 84.930974][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 84.935835][ C1] print_address_description.constprop.0.cold+0xd4/0x30b [ 84.942903][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 84.947742][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 84.952672][ C1] __kasan_report.cold+0x1b/0x41 [ 84.957606][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 84.962464][ C1] kasan_report+0x12/0x20 [ 84.966786][ C1] check_memory_region+0x134/0x1a0 [ 84.971950][ C1] __kasan_check_read+0x11/0x20 [ 84.976804][ C1] bitmap_port_gc+0x112/0x4f0 [ 84.981537][ C1] call_timer_fn+0x1ac/0x780 [ 84.986125][ C1] ? bitmap_port_test+0x170/0x170 [ 84.991285][ C1] ? msleep_interruptible+0x150/0x150 [ 84.996654][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 85.002208][ C1] ? trace_hardirqs_on+0x67/0x240 [ 85.007225][ C1] ? bitmap_port_test+0x170/0x170 [ 85.012350][ C1] ? bitmap_port_test+0x170/0x170 [ 85.017371][ C1] run_timer_softirq+0x6c3/0x1790 [ 85.022499][ C1] ? add_timer+0x930/0x930 [ 85.026938][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 85.033645][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.039206][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 85.045360][ C1] ? trace_hardirqs_on+0x67/0x240 [ 85.050409][ C1] __do_softirq+0x262/0x98c [ 85.054925][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 85.059933][ C1] irq_exit+0x19b/0x1e0 [ 85.064088][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 85.069643][ C1] apic_timer_interrupt+0xf/0x20 [ 85.074574][ C1] [ 85.077505][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x90/0xe0 [ 85.083904][ C1] Code: 48 c7 c0 d8 34 93 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 4f de be 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 f1 33 7c f9 65 8b 05 e2 c7 2d 78 [ 85.103667][ C1] RSP: 0018:ffffc900037378c8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 85.112081][ C1] RAX: 1ffffffff132669b RBX: 0000000000000282 RCX: 0000000000000000 [ 85.120294][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000282 [ 85.128461][ C1] RBP: ffffc900037378d8 R08: ffff88809fefc1c0 R09: 0000000000000000 [ 85.136426][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8b823148 [ 85.144392][ C1] R13: ffffffff8b823148 R14: ffff88808b22c000 R15: 0000000000000000 [ 85.152379][ C1] debug_check_no_obj_freed+0x20a/0x43f [ 85.157918][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.163475][ C1] __free_pages_ok+0x266/0xea0 [ 85.168246][ C1] free_compound_page+0x97/0xd0 [ 85.173106][ C1] free_transhuge_page+0x2a7/0x3b0 [ 85.178224][ C1] __put_compound_page+0x90/0xd0 [ 85.183160][ C1] release_pages+0x666/0x1bd0 [ 85.187854][ C1] ? __activate_page+0x1460/0x1460 [ 85.193093][ C1] ? find_next_bit+0x107/0x130 [ 85.197865][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 85.204117][ C1] ? lru_add_drain_cpu+0x212/0x5c0 [ 85.209224][ C1] free_pages_and_swap_cache+0x2c3/0x3f0 [ 85.214864][ C1] tlb_flush_mmu+0x89/0x630 [ 85.219367][ C1] tlb_finish_mmu+0x98/0x3b0 [ 85.223952][ C1] exit_mmap+0x2da/0x530 [ 85.228198][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 85.233231][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 85.239465][ C1] ? __khugepaged_exit+0xcf/0x410 [ 85.244562][ C1] mmput+0x179/0x4d0 [ 85.248545][ C1] do_exit+0xac2/0x2f50 [ 85.252704][ C1] ? mm_update_next_owner+0x7c0/0x7c0 [ 85.258226][ C1] ? down_read_non_owner+0x490/0x490 [ 85.263547][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 85.269787][ C1] ? handle_mm_fault+0x4ab/0xa50 [ 85.274724][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 85.280181][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 85.285640][ C1] do_group_exit+0x135/0x360 [ 85.290294][ C1] __x64_sys_exit_group+0x44/0x50 [ 85.295329][ C1] do_syscall_64+0xfa/0x790 [ 85.299843][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.305811][ C1] RIP: 0033:0x440008 [ 85.309813][ C1] Code: Bad RIP value. [ 85.314030][ C1] RSP: 002b:00007ffe948e9428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 85.322570][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440008 [ 85.330735][ C1] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 85.338930][ C1] RBP: 00000000004bf890 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 85.347035][ C1] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000001 [ 85.355068][ C1] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 85.363159][ C1] [ 85.365474][ C1] Allocated by task 9853: [ 85.369882][ C1] save_stack+0x23/0x90 [ 85.374234][ C1] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 85.379884][ C1] kasan_kmalloc+0x9/0x10 [ 85.384376][ C1] __kmalloc+0x163/0x770 [ 85.388735][ C1] ip_set_alloc+0x38/0x5e [ 85.393062][ C1] bitmap_port_create+0x3dc/0x7c0 [ 85.398336][ C1] ip_set_create+0x6f1/0x1500 [ 85.403092][ C1] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 85.408021][ C1] netlink_rcv_skb+0x177/0x450 [ 85.412776][ C1] nfnetlink_rcv+0x1ba/0x460 [ 85.417386][ C1] netlink_unicast+0x58c/0x7d0 [ 85.422199][ C1] netlink_sendmsg+0x91c/0xea0 [ 85.426977][ C1] sock_sendmsg+0xd7/0x130 [ 85.431408][ C1] ____sys_sendmsg+0x753/0x880 [ 85.436163][ C1] ___sys_sendmsg+0x100/0x170 [ 85.440894][ C1] __sys_sendmsg+0x105/0x1d0 [ 85.445497][ C1] __x64_sys_sendmsg+0x78/0xb0 [ 85.450254][ C1] do_syscall_64+0xfa/0x790 [ 85.455011][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.460889][ C1] [ 85.463251][ C1] Freed by task 9576: [ 85.467327][ C1] save_stack+0x23/0x90 [ 85.471481][ C1] __kasan_slab_free+0x102/0x150 [ 85.476446][ C1] kasan_slab_free+0xe/0x10 [ 85.480939][ C1] kfree+0x10a/0x2c0 [ 85.484973][ C1] tomoyo_check_open_permission+0x19e/0x3e0 [ 85.491046][ C1] tomoyo_file_open+0xa9/0xd0 [ 85.495767][ C1] security_file_open+0x71/0x300 [ 85.501504][ C1] do_dentry_open+0x37a/0x1380 [ 85.506397][ C1] vfs_open+0xa0/0xd0 [ 85.510457][ C1] path_openat+0x10df/0x4500 [ 85.515030][ C1] do_filp_open+0x1a1/0x280 [ 85.519555][ C1] do_sys_open+0x3fe/0x5d0 [ 85.523986][ C1] __x64_sys_open+0x7e/0xc0 [ 85.528477][ C1] do_syscall_64+0xfa/0x790 [ 85.533029][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.539051][ C1] [ 85.541374][ C1] The buggy address belongs to the object at ffff8880a8c62d00 [ 85.541374][ C1] which belongs to the cache kmalloc-32 of size 32 [ 85.555255][ C1] The buggy address is located 0 bytes inside of [ 85.555255][ C1] 32-byte region [ffff8880a8c62d00, ffff8880a8c62d20) [ 85.568438][ C1] The buggy address belongs to the page: [ 85.574066][ C1] page:ffffea0002a31880 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a8c62fc1 [ 85.584629][ C1] raw: 00fffe0000000200 ffffea00027f4388 ffffea0002a158c8 ffff8880aa4001c0 [ 85.593303][ C1] raw: ffff8880a8c62fc1 ffff8880a8c62000 000000010000001f 0000000000000000 [ 85.601983][ C1] page dumped because: kasan: bad access detected [ 85.608654][ C1] [ 85.610967][ C1] Memory state around the buggy address: [ 85.616583][ C1] ffff8880a8c62c00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 85.624938][ C1] ffff8880a8c62c80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 85.633058][ C1] >ffff8880a8c62d00: 04 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 85.641110][ C1] ^ [ 85.645239][ C1] ffff8880a8c62d80: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 85.653306][ C1] ffff8880a8c62e00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 85.661403][ C1] ================================================================== [ 85.669615][ C1] Disabling lock debugging due to kernel taint [ 85.675914][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 85.682501][ C1] CPU: 1 PID: 10212 Comm: syz-executor805 Tainted: G B 5.5.0-rc5-syzkaller #0 [ 85.692755][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.703091][ C1] Call Trace: [ 85.706372][ C1] [ 85.709223][ C1] dump_stack+0x197/0x210 [ 85.713555][ C1] panic+0x2e3/0x75c [ 85.717460][ C1] ? add_taint.cold+0x16/0x16 [ 85.722206][ C1] ? retint_kernel+0x2b/0x2b [ 85.726785][ C1] ? trace_hardirqs_on+0x5e/0x240 [ 85.731792][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 85.736953][ C1] end_report+0x47/0x4f [ 85.741134][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 85.746053][ C1] __kasan_report.cold+0xe/0x41 [ 85.751142][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 85.756154][ C1] kasan_report+0x12/0x20 [ 85.760485][ C1] check_memory_region+0x134/0x1a0 [ 85.765750][ C1] __kasan_check_read+0x11/0x20 [ 85.770600][ C1] bitmap_port_gc+0x112/0x4f0 [ 85.775270][ C1] call_timer_fn+0x1ac/0x780 [ 85.779873][ C1] ? bitmap_port_test+0x170/0x170 [ 85.784882][ C1] ? msleep_interruptible+0x150/0x150 [ 85.790238][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 85.795517][ C1] ? trace_hardirqs_on+0x67/0x240 [ 85.800582][ C1] ? bitmap_port_test+0x170/0x170 [ 85.805815][ C1] ? bitmap_port_test+0x170/0x170 [ 85.811230][ C1] run_timer_softirq+0x6c3/0x1790 [ 85.816347][ C1] ? add_timer+0x930/0x930 [ 85.820779][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 85.826963][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.832494][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 85.838465][ C1] ? trace_hardirqs_on+0x67/0x240 [ 85.843482][ C1] __do_softirq+0x262/0x98c [ 85.847972][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 85.852883][ C1] irq_exit+0x19b/0x1e0 [ 85.857140][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 85.862946][ C1] apic_timer_interrupt+0xf/0x20 [ 85.867956][ C1] [ 85.870883][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x90/0xe0 [ 85.877401][ C1] Code: 48 c7 c0 d8 34 93 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 4f de be 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 f1 33 7c f9 65 8b 05 e2 c7 2d 78 [ 85.900608][ C1] RSP: 0018:ffffc900037378c8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 85.909269][ C1] RAX: 1ffffffff132669b RBX: 0000000000000282 RCX: 0000000000000000 [ 85.917276][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000282 [ 85.925307][ C1] RBP: ffffc900037378d8 R08: ffff88809fefc1c0 R09: 0000000000000000 [ 85.933619][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8b823148 [ 85.941875][ C1] R13: ffffffff8b823148 R14: ffff88808b22c000 R15: 0000000000000000 [ 85.949883][ C1] debug_check_no_obj_freed+0x20a/0x43f [ 85.955435][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.960970][ C1] __free_pages_ok+0x266/0xea0 [ 85.965732][ C1] free_compound_page+0x97/0xd0 [ 85.970606][ C1] free_transhuge_page+0x2a7/0x3b0 [ 85.975708][ C1] __put_compound_page+0x90/0xd0 [ 85.980777][ C1] release_pages+0x666/0x1bd0 [ 85.985454][ C1] ? __activate_page+0x1460/0x1460 [ 85.990897][ C1] ? find_next_bit+0x107/0x130 [ 85.995664][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 86.001892][ C1] ? lru_add_drain_cpu+0x212/0x5c0 [ 86.007047][ C1] free_pages_and_swap_cache+0x2c3/0x3f0 [ 86.012673][ C1] tlb_flush_mmu+0x89/0x630 [ 86.017207][ C1] tlb_finish_mmu+0x98/0x3b0 [ 86.021861][ C1] exit_mmap+0x2da/0x530 [ 86.026101][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 86.031143][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 86.037382][ C1] ? __khugepaged_exit+0xcf/0x410 [ 86.042403][ C1] mmput+0x179/0x4d0 [ 86.046291][ C1] do_exit+0xac2/0x2f50 [ 86.050440][ C1] ? mm_update_next_owner+0x7c0/0x7c0 [ 86.055866][ C1] ? down_read_non_owner+0x490/0x490 [ 86.061286][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 86.067526][ C1] ? handle_mm_fault+0x4ab/0xa50 [ 86.072459][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 86.077906][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 86.083367][ C1] do_group_exit+0x135/0x360 [ 86.088052][ C1] __x64_sys_exit_group+0x44/0x50 [ 86.093062][ C1] do_syscall_64+0xfa/0x790 [ 86.097551][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.104216][ C1] RIP: 0033:0x440008 [ 86.108215][ C1] Code: Bad RIP value. [ 86.112282][ C1] RSP: 002b:00007ffe948e9428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 86.120677][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440008 [ 86.128637][ C1] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 86.136598][ C1] RBP: 00000000004bf890 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 86.144658][ C1] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000001 [ 86.152613][ C1] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 86.162176][ C1] Kernel Offset: disabled [ 86.166499][ C1] Rebooting in 86400 seconds..