[ 90.159874][ T27] audit: type=1800 audit(1579555209.647:26): pid=9719 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[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 91.158402][ T27] kauditd_printk_skb: 2 callbacks suppressed
[ 91.158414][ T27] audit: type=1800 audit(1579555210.667:29): pid=9719 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
[ 91.185093][ T27] audit: type=1800 audit(1579555210.667:30): pid=9719 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 '10.128.0.34' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [ 102.809350][ T9872] IPVS: ftp: loaded support on port[0] = 21
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[ 103.914734][ C0] ==================================================================
[ 103.923040][ C0] BUG: KASAN: slab-out-of-bounds in bitmap_ipmac_gc+0x119/0x590
[ 103.930829][ C0] Read of size 8 at addr ffff88809dd846c0 by task syz-executor031/10142
[ 103.939500][ C0]
[ 103.941825][ C0] CPU: 0 PID: 10142 Comm: syz-executor031 Not tainted 5.5.0-rc6-syzkaller #0
[ 103.950574][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 103.960622][ C0] Call Trace:
[ 103.963892][ C0]
[ 103.966753][ C0] dump_stack+0x197/0x210
[ 103.971068][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 103.975999][ C0] print_address_description.constprop.0.cold+0xd4/0x30b
[ 103.983009][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 103.988059][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 103.993127][ C0] __kasan_report.cold+0x1b/0x41
[ 103.998171][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 104.003119][ C0] kasan_report+0x12/0x20
[ 104.007448][ C0] check_memory_region+0x134/0x1a0
[ 104.012613][ C0] __kasan_check_read+0x11/0x20
[ 104.017507][ C0] bitmap_ipmac_gc+0x119/0x590
[ 104.022390][ C0] call_timer_fn+0x1ac/0x780
[ 104.027300][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.032643][ C0] ? msleep_interruptible+0x150/0x150
[ 104.038076][ C0] ? run_timer_softirq+0x6b1/0x1790
[ 104.043276][ C0] ? trace_hardirqs_on+0x67/0x240
[ 104.048354][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.053734][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.059081][ C0] run_timer_softirq+0x6c3/0x1790
[ 104.064193][ C0] ? add_timer+0x930/0x930
[ 104.068607][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 104.074822][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 104.080491][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 104.086539][ C0] __do_softirq+0x262/0x98c
[ 104.091229][ C0] ? sched_clock_cpu+0x1b/0x1b0
[ 104.096080][ C0] irq_exit+0x19b/0x1e0
[ 104.100239][ C0] smp_apic_timer_interrupt+0x1a3/0x610
[ 104.105835][ C0] apic_timer_interrupt+0xf/0x20
[ 104.110820][ C0]
[ 104.113760][ C0] RIP: 0010:clear_page_erms+0x7/0x10
[ 104.119058][ C0] Code: 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 0f 1f 80 00 00 00 00 b9 00 10 00 00 31 c0 aa c3 cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 41 54 53
[ 104.138657][ C0] RSP: 0000:ffffc900031e7850 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff13
[ 104.147067][ C0] RAX: 0000000000000000 RBX: ffffea0002263bc0 RCX: 00000000000006c0
[ 104.155138][ C0] RDX: 1ffff110153712a3 RSI: 0000000000000200 RDI: ffff8880898ef940
[ 104.163128][ C0] RBP: ffffc900031e7890 R08: ffff8880a9b882c0 R09: ffffed1011300000
[ 104.171296][ C0] R10: fffff9400044c006 R11: ffffea0002260037 R12: ffff8880a9b882c0
[ 104.179279][ C0] R13: ffffed10153712d5 R14: dffffc0000000000 R15: ffffea0002268000
[ 104.187266][ C0] ? kernel_init_free_pages+0x9c/0x120
[ 104.193687][ C0] prep_new_page+0x13b/0x200
[ 104.198277][ C0] get_page_from_freelist+0x322a/0x42a0
[ 104.203827][ C0] ? kasan_slab_alloc+0xf/0x20
[ 104.208592][ C0] ? kmem_cache_alloc+0x121/0x710
[ 104.213613][ C0] ? __khugepaged_enter+0x3b/0x3a0
[ 104.219705][ C0] ? __isolate_free_page+0x4c0/0x4c0
[ 104.225445][ C0] ? __kasan_check_read+0x11/0x20
[ 104.230493][ C0] ? __khugepaged_enter+0x29a/0x3a0
[ 104.235702][ C0] __alloc_pages_nodemask+0x2d0/0x910
[ 104.241105][ C0] ? __alloc_pages_slowpath+0x2900/0x2900
[ 104.246832][ C0] ? lock_downgrade+0x920/0x920
[ 104.251710][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[ 104.258048][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[ 104.264308][ C0] alloc_pages_vma+0x3ce/0x620
[ 104.269075][ C0] do_huge_pmd_anonymous_page+0x48a/0x1a50
[ 104.274941][ C0] ? mark_lock+0xc2/0x1220
[ 104.279481][ C0] ? do_wp_page+0x54b/0x1540
[ 104.284192][ C0] ? prep_transhuge_page+0xa0/0xa0
[ 104.289311][ C0] ? pmd_val+0x100/0x100
[ 104.293683][ C0] __handle_mm_fault+0x3145/0x3cc0
[ 104.298794][ C0] ? apply_to_existing_page_range+0x50/0x50
[ 104.304707][ C0] ? handle_mm_fault+0x292/0xa50
[ 104.309664][ C0] ? handle_mm_fault+0x7a0/0xa50
[ 104.314610][ C0] ? __kasan_check_read+0x11/0x20
[ 104.319647][ C0] handle_mm_fault+0x3b2/0xa50
[ 104.324409][ C0] __do_page_fault+0x536/0xd80
[ 104.329268][ C0] do_page_fault+0x38/0x590
[ 104.333782][ C0] page_fault+0x39/0x40
[ 104.337930][ C0] RIP: 0033:0x400bf4
[ 104.341824][ C0] Code: 0c 00 00 00 ba 03 00 00 00 be 10 00 00 00 bf 29 00 00 00 e8 5e 09 04 00 48 83 f8 ff 74 07 48 89 05 a1 b4 2c 00 b8 98 03 00 20 <48> c7 04 25 00 03 00 20 00 00 00 00 c7 04 25 08 03 00 20 00 00 00
[ 104.361567][ C0] RSP: 002b:00007ffdf0bd83d0 EFLAGS: 00010213
[ 104.367822][ C0] RAX: 0000000020000398 RBX: 0000000000000000 RCX: 0000000000441559
[ 104.375905][ C0] RDX: 000000000000000c RSI: 0000000000000003 RDI: 0000000000000010
[ 104.383897][ C0] RBP: 00000000000195c6 R08: 0000000000000004 R09: 0000000100000000
[ 104.391863][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402420
[ 104.399848][ C0] R13: 00000000004024b0 R14: 0000000000000000 R15: 0000000000000000
[ 104.408097][ C0]
[ 104.410415][ C0] Allocated by task 9873:
[ 104.414850][ C0] save_stack+0x23/0x90
[ 104.419011][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0
[ 104.424760][ C0] kasan_kmalloc+0x9/0x10
[ 104.429155][ C0] __kmalloc+0x163/0x770
[ 104.433406][ C0] ip_set_alloc+0x38/0x5e
[ 104.437754][ C0] bitmap_ipmac_create+0x4e8/0xa00
[ 104.442854][ C0] ip_set_create+0x6f1/0x1500
[ 104.447531][ C0] nfnetlink_rcv_msg+0xcf2/0xfb0
[ 104.452462][ C0] netlink_rcv_skb+0x177/0x450
[ 104.457431][ C0] nfnetlink_rcv+0x1ba/0x460
[ 104.462024][ C0] netlink_unicast+0x58c/0x7d0
[ 104.466790][ C0] netlink_sendmsg+0x91c/0xea0
[ 104.471557][ C0] sock_sendmsg+0xd7/0x130
[ 104.476114][ C0] ____sys_sendmsg+0x753/0x880
[ 104.480863][ C0] ___sys_sendmsg+0x100/0x170
[ 104.485540][ C0] __sys_sendmsg+0x105/0x1d0
[ 104.490120][ C0] __x64_sys_sendmsg+0x78/0xb0
[ 104.494872][ C0] do_syscall_64+0xfa/0x790
[ 104.499370][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 104.505262][ C0]
[ 104.507579][ C0] Freed by task 9603:
[ 104.511558][ C0] save_stack+0x23/0x90
[ 104.515724][ C0] __kasan_slab_free+0x102/0x150
[ 104.520835][ C0] kasan_slab_free+0xe/0x10
[ 104.525325][ C0] kfree+0x10a/0x2c0
[ 104.529232][ C0] tomoyo_check_open_permission+0x19e/0x3e0
[ 104.535209][ C0] tomoyo_file_open+0xa9/0xd0
[ 104.540333][ C0] security_file_open+0x71/0x300
[ 104.545278][ C0] do_dentry_open+0x37a/0x1380
[ 104.550069][ C0] vfs_open+0xa0/0xd0
[ 104.554269][ C0] path_openat+0x118b/0x3180
[ 104.558860][ C0] do_filp_open+0x1a1/0x280
[ 104.563448][ C0] do_sys_open+0x3fe/0x5d0
[ 104.567863][ C0] __x64_sys_open+0x7e/0xc0
[ 104.572363][ C0] do_syscall_64+0xfa/0x790
[ 104.576908][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 104.582797][ C0]
[ 104.585122][ C0] The buggy address belongs to the object at ffff88809dd846c0
[ 104.585122][ C0] which belongs to the cache kmalloc-32 of size 32
[ 104.599183][ C0] The buggy address is located 0 bytes inside of
[ 104.599183][ C0] 32-byte region [ffff88809dd846c0, ffff88809dd846e0)
[ 104.612301][ C0] The buggy address belongs to the page:
[ 104.618129][ C0] page:ffffea0002776100 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff88809dd84fc1
[ 104.628995][ C0] raw: 00fffe0000000200 ffffea0002a02248 ffffea00029ac288 ffff8880aa4001c0
[ 104.640218][ C0] raw: ffff88809dd84fc1 ffff88809dd84000 0000000100000030 0000000000000000
[ 104.649015][ C0] page dumped because: kasan: bad access detected
[ 104.655690][ C0]
[ 104.658154][ C0] Memory state around the buggy address:
[ 104.663878][ C0] ffff88809dd84580: 00 04 fc fc fc fc fc fc 00 01 fc fc fc fc fc fc
[ 104.671951][ C0] ffff88809dd84600: 06 fc fc fc fc fc fc fc 06 fc fc fc fc fc fc fc
[ 104.680244][ C0] >ffff88809dd84680: fb fb fb fb fc fc fc fc 04 fc fc fc fc fc fc fc
[ 104.688412][ C0] ^
[ 104.694572][ C0] ffff88809dd84700: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 104.702745][ C0] ffff88809dd84780: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 104.710954][ C0] ==================================================================
[ 104.719295][ C0] Disabling lock debugging due to kernel taint
[ 104.725752][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 104.734171][ C0] CPU: 0 PID: 10142 Comm: syz-executor031 Tainted: G B 5.5.0-rc6-syzkaller #0
[ 104.744601][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 104.754671][ C0] Call Trace:
[ 104.757959][ C0]
[ 104.761390][ C0] dump_stack+0x197/0x210
[ 104.765755][ C0] panic+0x2e3/0x75c
[ 104.769752][ C0] ? add_taint.cold+0x16/0x16
[ 104.774436][ C0] ? retint_kernel+0x2b/0x2b
[ 104.779033][ C0] ? trace_hardirqs_on+0x5e/0x240
[ 104.784115][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 104.789052][ C0] end_report+0x47/0x4f
[ 104.793316][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 104.798269][ C0] __kasan_report.cold+0xe/0x41
[ 104.803278][ C0] ? bitmap_ipmac_gc+0x119/0x590
[ 104.808226][ C0] kasan_report+0x12/0x20
[ 104.812763][ C0] check_memory_region+0x134/0x1a0
[ 104.818002][ C0] __kasan_check_read+0x11/0x20
[ 104.823060][ C0] bitmap_ipmac_gc+0x119/0x590
[ 104.827826][ C0] call_timer_fn+0x1ac/0x780
[ 104.832423][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.837709][ C0] ? msleep_interruptible+0x150/0x150
[ 104.843079][ C0] ? run_timer_softirq+0x6b1/0x1790
[ 104.848281][ C0] ? trace_hardirqs_on+0x67/0x240
[ 104.854611][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.859902][ C0] ? bitmap_ipmac_list+0x1080/0x1080
[ 104.865187][ C0] run_timer_softirq+0x6c3/0x1790
[ 104.870330][ C0] ? add_timer+0x930/0x930
[ 104.874883][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 104.881168][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 104.886870][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 104.892994][ C0] __do_softirq+0x262/0x98c
[ 104.897578][ C0] ? sched_clock_cpu+0x1b/0x1b0
[ 104.902431][ C0] irq_exit+0x19b/0x1e0
[ 104.906715][ C0] smp_apic_timer_interrupt+0x1a3/0x610
[ 104.912251][ C0] apic_timer_interrupt+0xf/0x20
[ 104.917543][ C0]
[ 104.920491][ C0] RIP: 0010:clear_page_erms+0x7/0x10
[ 104.925854][ C0] Code: 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 0f 1f 80 00 00 00 00 b9 00 10 00 00 31 c0 aa c3 cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 41 54 53
[ 104.945736][ C0] RSP: 0000:ffffc900031e7850 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff13
[ 104.954140][ C0] RAX: 0000000000000000 RBX: ffffea0002263bc0 RCX: 00000000000006c0
[ 104.962194][ C0] RDX: 1ffff110153712a3 RSI: 0000000000000200 RDI: ffff8880898ef940
[ 104.970161][ C0] RBP: ffffc900031e7890 R08: ffff8880a9b882c0 R09: ffffed1011300000
[ 104.979263][ C0] R10: fffff9400044c006 R11: ffffea0002260037 R12: ffff8880a9b882c0
[ 104.987351][ C0] R13: ffffed10153712d5 R14: dffffc0000000000 R15: ffffea0002268000
[ 104.995325][ C0] ? kernel_init_free_pages+0x9c/0x120
[ 105.001031][ C0] prep_new_page+0x13b/0x200
[ 105.006302][ C0] get_page_from_freelist+0x322a/0x42a0
[ 105.011829][ C0] ? kasan_slab_alloc+0xf/0x20
[ 105.016582][ C0] ? kmem_cache_alloc+0x121/0x710
[ 105.021655][ C0] ? __khugepaged_enter+0x3b/0x3a0
[ 105.026814][ C0] ? __isolate_free_page+0x4c0/0x4c0
[ 105.032083][ C0] ? __kasan_check_read+0x11/0x20
[ 105.037103][ C0] ? __khugepaged_enter+0x29a/0x3a0
[ 105.042899][ C0] __alloc_pages_nodemask+0x2d0/0x910
[ 105.048267][ C0] ? __alloc_pages_slowpath+0x2900/0x2900
[ 105.053970][ C0] ? lock_downgrade+0x920/0x920
[ 105.058825][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[ 105.065070][ C0] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[ 105.071309][ C0] alloc_pages_vma+0x3ce/0x620
[ 105.076067][ C0] do_huge_pmd_anonymous_page+0x48a/0x1a50
[ 105.082061][ C0] ? mark_lock+0xc2/0x1220
[ 105.086603][ C0] ? do_wp_page+0x54b/0x1540
[ 105.091181][ C0] ? prep_transhuge_page+0xa0/0xa0
[ 105.096409][ C0] ? pmd_val+0x100/0x100
[ 105.100661][ C0] __handle_mm_fault+0x3145/0x3cc0
[ 105.105820][ C0] ? apply_to_existing_page_range+0x50/0x50
[ 105.111714][ C0] ? handle_mm_fault+0x292/0xa50
[ 105.117487][ C0] ? handle_mm_fault+0x7a0/0xa50
[ 105.122424][ C0] ? __kasan_check_read+0x11/0x20
[ 105.127816][ C0] handle_mm_fault+0x3b2/0xa50
[ 105.132584][ C0] __do_page_fault+0x536/0xd80
[ 105.137428][ C0] do_page_fault+0x38/0x590
[ 105.142059][ C0] page_fault+0x39/0x40
[ 105.146258][ C0] RIP: 0033:0x400bf4
[ 105.150208][ C0] Code: 0c 00 00 00 ba 03 00 00 00 be 10 00 00 00 bf 29 00 00 00 e8 5e 09 04 00 48 83 f8 ff 74 07 48 89 05 a1 b4 2c 00 b8 98 03 00 20 <48> c7 04 25 00 03 00 20 00 00 00 00 c7 04 25 08 03 00 20 00 00 00
[ 105.169852][ C0] RSP: 002b:00007ffdf0bd83d0 EFLAGS: 00010213
[ 105.175930][ C0] RAX: 0000000020000398 RBX: 0000000000000000 RCX: 0000000000441559
[ 105.184067][ C0] RDX: 000000000000000c RSI: 0000000000000003 RDI: 0000000000000010
[ 105.192032][ C0] RBP: 00000000000195c6 R08: 0000000000000004 R09: 0000000100000000
[ 105.200090][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402420
[ 105.208148][ C0] R13: 00000000004024b0 R14: 0000000000000000 R15: 0000000000000000
[ 105.217565][ C0] Kernel Offset: disabled
[ 105.221916][ C0] Rebooting in 86400 seconds..