[ 85.090060][ T27] audit: type=1800 audit(1579415789.640:26): pid=9472 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. [ 86.101158][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 86.101171][ T27] audit: type=1800 audit(1579415790.670:29): pid=9472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 86.128030][ T27] audit: type=1800 audit(1579415790.670:30): pid=9472 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.197' (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 syzkaller login: [ 96.456242][ C1] ================================================================== [ 96.464489][ C1] BUG: KASAN: slab-out-of-bounds in bitmap_port_gc+0x112/0x4f0 [ 96.472152][ C1] Read of size 8 at addr ffff8880a2b070c0 by task syz-executor519/9985 [ 96.480681][ C1] [ 96.483017][ C1] CPU: 1 PID: 9985 Comm: syz-executor519 Not tainted 5.5.0-rc6-syzkaller #0 [ 96.491783][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.501965][ C1] Call Trace: [ 96.505243][ C1] [ 96.508087][ C1] dump_stack+0x197/0x210 [ 96.512410][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 96.517346][ C1] print_address_description.constprop.0.cold+0xd4/0x30b [ 96.524792][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 96.530466][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 96.535325][ C1] __kasan_report.cold+0x1b/0x41 [ 96.540375][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 96.545274][ C1] kasan_report+0x12/0x20 [ 96.549649][ C1] check_memory_region+0x134/0x1a0 [ 96.554807][ C1] __kasan_check_read+0x11/0x20 [ 96.559711][ C1] bitmap_port_gc+0x112/0x4f0 [ 96.564387][ C1] call_timer_fn+0x1ac/0x780 [ 96.569081][ C1] ? bitmap_port_test+0x170/0x170 [ 96.574229][ C1] ? msleep_interruptible+0x150/0x150 [ 96.580207][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 96.585410][ C1] ? trace_hardirqs_on+0x67/0x240 [ 96.590747][ C1] ? bitmap_port_test+0x170/0x170 [ 96.595837][ C1] ? bitmap_port_test+0x170/0x170 [ 96.600862][ C1] run_timer_softirq+0x6c3/0x1790 [ 96.605896][ C1] ? add_timer+0x930/0x930 [ 96.610309][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 96.616483][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 96.622062][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 96.628179][ C1] ? trace_hardirqs_on+0x67/0x240 [ 96.633337][ C1] __do_softirq+0x262/0x98c [ 96.637957][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 96.642824][ C1] irq_exit+0x19b/0x1e0 [ 96.647086][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 96.652649][ C1] apic_timer_interrupt+0xf/0x20 [ 96.657571][ C1] [ 96.660523][ C1] RIP: 0010:memset_erms+0x9/0x10 [ 96.665555][ C1] Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 [ 96.685292][ C1] RSP: 0018:ffffc900035e7948 EFLAGS: 00010206 ORIG_RAX: ffffffffffffff13 [ 96.693788][ C1] RAX: dffffc00000000ff RBX: 0000000000000200 RCX: 000000000002a7c0 [ 96.701753][ C1] RDX: 0000000000040000 RSI: 00000000000000ff RDI: ffffed10114d5840 [ 96.709719][ C1] RBP: ffffc900035e7950 R08: 1ffff110114c0000 R09: ffffed10114c0000 [ 96.717686][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0002298000 [ 96.725658][ C1] R13: 000000000008a600 R14: ffff88808a600000 R15: 0000000000000011 [ 96.733788][ C1] ? kasan_free_pages+0x59/0x60 [ 96.738846][ C1] __free_pages_ok+0x294/0xea0 [ 96.743613][ C1] free_compound_page+0x97/0xd0 [ 96.748468][ C1] free_transhuge_page+0x2a7/0x3b0 [ 96.753598][ C1] __put_compound_page+0x90/0xd0 [ 96.758576][ C1] release_pages+0x666/0x1bd0 [ 96.763254][ C1] ? __activate_page+0x1460/0x1460 [ 96.768423][ C1] ? find_next_bit+0x107/0x130 [ 96.773193][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 96.779436][ C1] ? lru_add_drain_cpu+0x212/0x5c0 [ 96.784626][ C1] free_pages_and_swap_cache+0x2c3/0x3f0 [ 96.790249][ C1] tlb_flush_mmu+0x89/0x630 [ 96.795503][ C1] tlb_finish_mmu+0x98/0x3b0 [ 96.800097][ C1] exit_mmap+0x2da/0x530 [ 96.804343][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 96.809280][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 96.815510][ C1] ? __khugepaged_exit+0xcf/0x410 [ 96.820523][ C1] mmput+0x179/0x4d0 [ 96.824409][ C1] do_exit+0xac2/0x2f50 [ 96.828597][ C1] ? mm_update_next_owner+0x7c0/0x7c0 [ 96.834033][ C1] ? down_read_non_owner+0x490/0x490 [ 96.839315][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 96.845772][ C1] ? handle_mm_fault+0x4ab/0xa50 [ 96.850773][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 96.856358][ C1] do_group_exit+0x135/0x360 [ 96.860948][ C1] __ia32_sys_exit_group+0x44/0x50 [ 96.866059][ C1] do_fast_syscall_32+0x27b/0xe16 [ 96.871383][ C1] entry_SYSENTER_compat+0x70/0x7f [ 96.876478][ C1] RIP: 0023:0xf7f1a9a9 [ 96.880813][ C1] Code: Bad RIP value. [ 96.884878][ C1] RSP: 002b:00000000ffaf365c EFLAGS: 00000296 ORIG_RAX: 00000000000000fc [ 96.893333][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080ed298 [ 96.901303][ C1] RDX: 0000000000000000 RSI: 00000000080d6f3c RDI: 00000000080ed2a0 [ 96.909431][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 96.917401][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 96.925370][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 96.933529][ C1] [ 96.935901][ C1] Allocated by task 9627: [ 96.940238][ C1] save_stack+0x23/0x90 [ 96.944470][ C1] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 96.950164][ C1] kasan_kmalloc+0x9/0x10 [ 96.954595][ C1] __kmalloc+0x163/0x770 [ 96.959777][ C1] ip_set_alloc+0x38/0x5e [ 96.964102][ C1] bitmap_port_create+0x3dc/0x7c0 [ 96.969114][ C1] ip_set_create+0x6f1/0x1500 [ 96.973874][ C1] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 96.978867][ C1] netlink_rcv_skb+0x177/0x450 [ 96.983649][ C1] nfnetlink_rcv+0x1ba/0x460 [ 96.988329][ C1] netlink_unicast+0x58c/0x7d0 [ 96.993274][ C1] netlink_sendmsg+0x91c/0xea0 [ 96.998107][ C1] sock_sendmsg+0xd7/0x130 [ 97.002509][ C1] ____sys_sendmsg+0x753/0x880 [ 97.007468][ C1] ___sys_sendmsg+0x100/0x170 [ 97.012127][ C1] __sys_sendmsg+0x105/0x1d0 [ 97.016708][ C1] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 97.022173][ C1] do_fast_syscall_32+0x27b/0xe16 [ 97.027189][ C1] entry_SYSENTER_compat+0x70/0x7f [ 97.032293][ C1] [ 97.034607][ C1] Freed by task 9369: [ 97.038583][ C1] save_stack+0x23/0x90 [ 97.042740][ C1] __kasan_slab_free+0x102/0x150 [ 97.050242][ C1] kasan_slab_free+0xe/0x10 [ 97.054879][ C1] kfree+0x10a/0x2c0 [ 97.058946][ C1] tomoyo_path_perm+0x24e/0x430 [ 97.063799][ C1] tomoyo_inode_getattr+0x1d/0x30 [ 97.068809][ C1] security_inode_getattr+0xf2/0x150 [ 97.074082][ C1] vfs_getattr+0x25/0x70 [ 97.078313][ C1] vfs_statx+0x157/0x200 [ 97.082544][ C1] __do_sys_newstat+0xa4/0x130 [ 97.088224][ C1] __x64_sys_newstat+0x54/0x80 [ 97.093092][ C1] do_syscall_64+0xfa/0x790 [ 97.097718][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.103719][ C1] [ 97.106149][ C1] The buggy address belongs to the object at ffff8880a2b070c0 [ 97.106149][ C1] which belongs to the cache kmalloc-32 of size 32 [ 97.120019][ C1] The buggy address is located 0 bytes inside of [ 97.120019][ C1] 32-byte region [ffff8880a2b070c0, ffff8880a2b070e0) [ 97.133147][ C1] The buggy address belongs to the page: [ 97.138780][ C1] page:ffffea00028ac1c0 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a2b07fc1 [ 97.149182][ C1] raw: 00fffe0000000200 ffffea0002a563c8 ffffea00025438c8 ffff8880aa4001c0 [ 97.159319][ C1] raw: ffff8880a2b07fc1 ffff8880a2b07000 0000000100000024 0000000000000000 [ 97.168132][ C1] page dumped because: kasan: bad access detected [ 97.174531][ C1] [ 97.176841][ C1] Memory state around the buggy address: [ 97.182522][ C1] ffff8880a2b06f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 97.190569][ C1] ffff8880a2b07000: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 97.198674][ C1] >ffff8880a2b07080: fb fb fb fb fc fc fc fc 04 fc fc fc fc fc fc fc [ 97.206722][ C1] ^ [ 97.212867][ C1] ffff8880a2b07100: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 97.220920][ C1] ffff8880a2b07180: fb fb fb fb fc fc fc fc 00 01 fc fc fc fc fc fc [ 97.229022][ C1] ================================================================== [ 97.237084][ C1] Disabling lock debugging due to kernel taint [ 97.243461][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 97.250050][ C1] CPU: 1 PID: 9985 Comm: syz-executor519 Tainted: G B 5.5.0-rc6-syzkaller #0 [ 97.260135][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.270179][ C1] Call Trace: [ 97.273492][ C1] [ 97.276335][ C1] dump_stack+0x197/0x210 [ 97.280659][ C1] panic+0x2e3/0x75c [ 97.284535][ C1] ? add_taint.cold+0x16/0x16 [ 97.289457][ C1] ? retint_kernel+0x2b/0x2b [ 97.294069][ C1] ? trace_hardirqs_on+0x5e/0x240 [ 97.299240][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 97.304079][ C1] end_report+0x47/0x4f [ 97.308329][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 97.313212][ C1] __kasan_report.cold+0xe/0x41 [ 97.318051][ C1] ? bitmap_port_gc+0x112/0x4f0 [ 97.323055][ C1] kasan_report+0x12/0x20 [ 97.327432][ C1] check_memory_region+0x134/0x1a0 [ 97.332530][ C1] __kasan_check_read+0x11/0x20 [ 97.337366][ C1] bitmap_port_gc+0x112/0x4f0 [ 97.342031][ C1] call_timer_fn+0x1ac/0x780 [ 97.346602][ C1] ? bitmap_port_test+0x170/0x170 [ 97.351739][ C1] ? msleep_interruptible+0x150/0x150 [ 97.357169][ C1] ? run_timer_softirq+0x6b1/0x1790 [ 97.362425][ C1] ? trace_hardirqs_on+0x67/0x240 [ 97.367433][ C1] ? bitmap_port_test+0x170/0x170 [ 97.372447][ C1] ? bitmap_port_test+0x170/0x170 [ 97.377597][ C1] run_timer_softirq+0x6c3/0x1790 [ 97.382615][ C1] ? add_timer+0x930/0x930 [ 97.387019][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 97.393290][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 97.399741][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 97.405717][ C1] ? trace_hardirqs_on+0x67/0x240 [ 97.410751][ C1] __do_softirq+0x262/0x98c [ 97.415258][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 97.420106][ C1] irq_exit+0x19b/0x1e0 [ 97.424256][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 97.429801][ C1] apic_timer_interrupt+0xf/0x20 [ 97.434716][ C1] [ 97.437671][ C1] RIP: 0010:memset_erms+0x9/0x10 [ 97.442591][ C1] Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 [ 97.462190][ C1] RSP: 0018:ffffc900035e7948 EFLAGS: 00010206 ORIG_RAX: ffffffffffffff13 [ 97.470596][ C1] RAX: dffffc00000000ff RBX: 0000000000000200 RCX: 000000000002a7c0 [ 97.479078][ C1] RDX: 0000000000040000 RSI: 00000000000000ff RDI: ffffed10114d5840 [ 97.487169][ C1] RBP: ffffc900035e7950 R08: 1ffff110114c0000 R09: ffffed10114c0000 [ 97.495145][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0002298000 [ 97.503381][ C1] R13: 000000000008a600 R14: ffff88808a600000 R15: 0000000000000011 [ 97.511357][ C1] ? kasan_free_pages+0x59/0x60 [ 97.516396][ C1] __free_pages_ok+0x294/0xea0 [ 97.521145][ C1] free_compound_page+0x97/0xd0 [ 97.526284][ C1] free_transhuge_page+0x2a7/0x3b0 [ 97.531527][ C1] __put_compound_page+0x90/0xd0 [ 97.536527][ C1] release_pages+0x666/0x1bd0 [ 97.541191][ C1] ? __activate_page+0x1460/0x1460 [ 97.546295][ C1] ? find_next_bit+0x107/0x130 [ 97.551163][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.557473][ C1] ? lru_add_drain_cpu+0x212/0x5c0 [ 97.562577][ C1] free_pages_and_swap_cache+0x2c3/0x3f0 [ 97.568291][ C1] tlb_flush_mmu+0x89/0x630 [ 97.572851][ C1] tlb_finish_mmu+0x98/0x3b0 [ 97.577446][ C1] exit_mmap+0x2da/0x530 [ 97.581683][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 97.586621][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.592866][ C1] ? __khugepaged_exit+0xcf/0x410 [ 97.597891][ C1] mmput+0x179/0x4d0 [ 97.601784][ C1] do_exit+0xac2/0x2f50 [ 97.606031][ C1] ? mm_update_next_owner+0x7c0/0x7c0 [ 97.611394][ C1] ? down_read_non_owner+0x490/0x490 [ 97.616671][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 97.622944][ C1] ? handle_mm_fault+0x4ab/0xa50 [ 97.627993][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 97.633522][ C1] do_group_exit+0x135/0x360 [ 97.638109][ C1] __ia32_sys_exit_group+0x44/0x50 [ 97.643215][ C1] do_fast_syscall_32+0x27b/0xe16 [ 97.648276][ C1] entry_SYSENTER_compat+0x70/0x7f [ 97.653388][ C1] RIP: 0023:0xf7f1a9a9 [ 97.657448][ C1] Code: Bad RIP value. [ 97.661541][ C1] RSP: 002b:00000000ffaf365c EFLAGS: 00000296 ORIG_RAX: 00000000000000fc [ 97.669942][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000080ed298 [ 97.678022][ C1] RDX: 0000000000000000 RSI: 00000000080d6f3c RDI: 00000000080ed2a0 [ 97.685987][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 97.694290][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 97.702379][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 97.712897][ C1] Kernel Offset: disabled [ 97.717246][ C1] Rebooting in 86400 seconds..