[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 89.925139][ T27] audit: type=1800 audit(1579422967.586:25): pid=9538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0
[ 89.944843][ T27] audit: type=1800 audit(1579422967.586:26): pid=9538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0
[ 89.966195][ T27] audit: type=1800 audit(1579422967.586:27): pid=9538 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts.
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syzkaller login: [ 100.776043][ C0] ==================================================================
[ 100.784276][ C0] BUG: KASAN: slab-out-of-bounds in bitmap_ip_gc+0x100/0x4f0
[ 100.791629][ C0] Read of size 8 at addr ffff8880a2d9c180 by task syz-executor706/10066
[ 100.799927][ C0]
[ 100.802241][ C0] CPU: 0 PID: 10066 Comm: syz-executor706 Not tainted 5.5.0-rc6-syzkaller #0
[ 100.811018][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 100.821056][ C0] Call Trace:
[ 100.824327][ C0]
[ 100.827169][ C0] dump_stack+0x197/0x210
[ 100.831481][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 100.836181][ C0] print_address_description.constprop.0.cold+0xd4/0x30b
[ 100.843400][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 100.848063][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 100.852829][ C0] __kasan_report.cold+0x1b/0x41
[ 100.857752][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 100.863022][ C0] kasan_report+0x12/0x20
[ 100.867332][ C0] check_memory_region+0x134/0x1a0
[ 100.872424][ C0] __kasan_check_read+0x11/0x20
[ 100.877365][ C0] bitmap_ip_gc+0x100/0x4f0
[ 100.881939][ C0] call_timer_fn+0x1ac/0x780
[ 100.886537][ C0] ? bitmap_ip_test+0x170/0x170
[ 100.891373][ C0] ? msleep_interruptible+0x150/0x150
[ 100.896723][ C0] ? run_timer_softirq+0x6b1/0x1790
[ 100.901904][ C0] ? trace_hardirqs_on+0x67/0x240
[ 100.906908][ C0] ? bitmap_ip_test+0x170/0x170
[ 100.911763][ C0] ? bitmap_ip_test+0x170/0x170
[ 100.916610][ C0] run_timer_softirq+0x6c3/0x1790
[ 100.921689][ C0] ? add_timer+0x930/0x930
[ 100.926123][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 100.932307][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 100.937835][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 100.943799][ C0] ? trace_hardirqs_on+0x67/0x240
[ 100.948808][ C0] __do_softirq+0x262/0x98c
[ 100.953295][ C0] ? sched_clock_cpu+0x1b/0x1b0
[ 100.958132][ C0] irq_exit+0x19b/0x1e0
[ 100.962285][ C0] smp_apic_timer_interrupt+0x1a3/0x610
[ 100.967872][ C0] apic_timer_interrupt+0xf/0x20
[ 100.972785][ C0]
[ 100.975705][ C0] RIP: 0010:__sanitizer_cov_trace_cmp8+0x1/0x20
[ 100.981931][ C0] Code: ff 5d c3 66 0f 1f 44 00 00 55 89 f2 89 fe bf 04 00 00 00 48 89 e5 48 8b 4d 08 e8 3a ff ff ff 5d c3 0f 1f 84 00 00 00 00 00 55 <48> 89 f2 48 89 fe bf 06 00 00 00 48 89 e5 48 8b 4d 08 e8 18 ff ff
[ 101.001511][ C0] RSP: 0018:ffffc900037b7938 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[ 101.009953][ C0] RAX: ffff888093d36380 RBX: 0000000000000074 RCX: ffffffff81bb8201
[ 101.017902][ C0] RDX: 0000000000000000 RSI: ffffffff81000000 RDI: ffff8880a7636074
[ 101.025982][ C0] RBP: ffffc900037b7990 R08: ffff888093d36380 R09: ffff8880aa400a80
[ 101.033933][ C0] R10: 0000000000000000 R11: ffffea00029d8d87 R12: ffff8880a7636000
[ 101.041881][ C0] R13: ffffea00029d8d80 R14: ffff8880a7636074 R15: 0000000000000001
[ 101.049889][ C0] ? __check_object_size+0xf1/0x437
[ 101.055066][ C0] ? 0xffffffff81000000
[ 101.059210][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20
[ 101.064917][ C0] ? __check_object_size+0x10e/0x437
[ 101.070228][ C0] netlink_sendmsg+0x866/0xea0
[ 101.075015][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 101.079934][ C0] ? aa_sock_msg_perm.isra.0+0xba/0x170
[ 101.085519][ C0] ? apparmor_socket_sendmsg+0x2a/0x30
[ 101.090958][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 101.097211][ C0] ? security_socket_sendmsg+0x8d/0xc0
[ 101.102656][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 101.107587][ C0] sock_sendmsg+0xd7/0x130
[ 101.111986][ C0] ____sys_sendmsg+0x753/0x880
[ 101.116732][ C0] ? kernel_sendmsg+0x50/0x50
[ 101.121410][ C0] ? mark_held_locks+0xa4/0xf0
[ 101.126154][ C0] ? do_huge_pmd_anonymous_page+0x1463/0x1a50
[ 101.132288][ C0] ? __handle_mm_fault+0x3145/0x3cc0
[ 101.137549][ C0] ? do_huge_pmd_anonymous_page+0x1463/0x1a50
[ 101.143600][ C0] ___sys_sendmsg+0x100/0x170
[ 101.148255][ C0] ? do_huge_pmd_anonymous_page+0xceb/0x1a50
[ 101.154227][ C0] ? sendmsg_copy_msghdr+0x70/0x70
[ 101.159342][ C0] ? __do_page_fault+0x56a/0xd80
[ 101.164257][ C0] ? find_held_lock+0x35/0x130
[ 101.168998][ C0] ? __do_page_fault+0x56a/0xd80
[ 101.173922][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 101.180140][ C0] ? __fget_light+0x1a9/0x230
[ 101.184794][ C0] ? __fdget+0x1b/0x20
[ 101.188838][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[ 101.195058][ C0] __sys_sendmsg+0x105/0x1d0
[ 101.199630][ C0] ? __sys_sendmsg_sock+0xc0/0xc0
[ 101.204632][ C0] ? down_read_non_owner+0x490/0x490
[ 101.209904][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 101.215352][ C0] ? do_syscall_64+0x26/0x790
[ 101.220008][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 101.226053][ C0] ? do_syscall_64+0x26/0x790
[ 101.230710][ C0] __x64_sys_sendmsg+0x78/0xb0
[ 101.235453][ C0] do_syscall_64+0xfa/0x790
[ 101.239945][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 101.245837][ C0] RIP: 0033:0x441439
[ 101.249715][ C0] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 101.269384][ C0] RSP: 002b:00007ffcce240188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 101.277782][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441439
[ 101.285731][ C0] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
[ 101.293681][ C0] RBP: 0000000000018991 R08: 00000000004002c8 R09: 00000000004002c8
[ 101.301669][ C0] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402260
[ 101.309622][ C0] R13: 00000000004022f0 R14: 0000000000000000 R15: 0000000000000000
[ 101.317600][ C0]
[ 101.319910][ C0] Allocated by task 9695:
[ 101.324216][ C0] save_stack+0x23/0x90
[ 101.328349][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0
[ 101.333965][ C0] kasan_kmalloc+0x9/0x10
[ 101.338269][ C0] __kmalloc+0x163/0x770
[ 101.342488][ C0] ip_set_alloc+0x38/0x5e
[ 101.346806][ C0] bitmap_ip_create+0x6ec/0xc20
[ 101.351639][ C0] ip_set_create+0x6f1/0x1500
[ 101.356296][ C0] nfnetlink_rcv_msg+0xcf2/0xfb0
[ 101.361209][ C0] netlink_rcv_skb+0x177/0x450
[ 101.365961][ C0] nfnetlink_rcv+0x1ba/0x460
[ 101.370529][ C0] netlink_unicast+0x58c/0x7d0
[ 101.375280][ C0] netlink_sendmsg+0x91c/0xea0
[ 101.380021][ C0] sock_sendmsg+0xd7/0x130
[ 101.394222][ C0] ____sys_sendmsg+0x753/0x880
[ 101.400536][ C0] ___sys_sendmsg+0x100/0x170
[ 101.405260][ C0] __sys_sendmsg+0x105/0x1d0
[ 101.409835][ C0] __x64_sys_sendmsg+0x78/0xb0
[ 101.414580][ C0] do_syscall_64+0xfa/0x790
[ 101.419076][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 101.424950][ C0]
[ 101.427278][ C0] Freed by task 9434:
[ 101.431377][ C0] save_stack+0x23/0x90
[ 101.435515][ C0] __kasan_slab_free+0x102/0x150
[ 101.440444][ C0] kasan_slab_free+0xe/0x10
[ 101.444951][ C0] kfree+0x10a/0x2c0
[ 101.448838][ C0] tomoyo_supervisor+0xc2c/0xef0
[ 101.453812][ C0] tomoyo_env_perm+0x18e/0x210
[ 101.458571][ C0] tomoyo_find_next_domain+0x1354/0x1f6c
[ 101.464803][ C0] tomoyo_bprm_check_security+0x124/0x1a0
[ 101.470857][ C0] security_bprm_check+0x63/0xb0
[ 101.475782][ C0] search_binary_handler+0x71/0x570
[ 101.480980][ C0] __do_execve_file.isra.0+0x1329/0x22b0
[ 101.486680][ C0] __x64_sys_execve+0x8f/0xc0
[ 101.491387][ C0] do_syscall_64+0xfa/0x790
[ 101.495876][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 101.501745][ C0]
[ 101.504105][ C0] The buggy address belongs to the object at ffff8880a2d9c180
[ 101.504105][ C0] which belongs to the cache kmalloc-32 of size 32
[ 101.518177][ C0] The buggy address is located 0 bytes inside of
[ 101.518177][ C0] 32-byte region [ffff8880a2d9c180, ffff8880a2d9c1a0)
[ 101.531171][ C0] The buggy address belongs to the page:
[ 101.536793][ C0] page:ffffea00028b6700 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a2d9cfc1
[ 101.547189][ C0] raw: 00fffe0000000200 ffffea0002a59748 ffffea0002577e08 ffff8880aa4001c0
[ 101.555762][ C0] raw: ffff8880a2d9cfc1 ffff8880a2d9c000 000000010000002b 0000000000000000
[ 101.564892][ C0] page dumped because: kasan: bad access detected
[ 101.571290][ C0]
[ 101.573607][ C0] Memory state around the buggy address:
[ 101.579226][ C0] ffff8880a2d9c080: 00 03 fc fc fc fc fc fc fb fb fb fb fc fc fc fc
[ 101.587282][ C0] ffff8880a2d9c100: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 101.596235][ C0] >ffff8880a2d9c180: 04 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc
[ 101.604374][ C0] ^
[ 101.608486][ C0] ffff8880a2d9c200: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 101.616603][ C0] ffff8880a2d9c280: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
[ 101.624684][ C0] ==================================================================
[ 101.632782][ C0] Disabling lock debugging due to kernel taint
[ 101.639014][ C0] Kernel panic - not syncing: panic_on_warn set ...
[ 101.645592][ C0] CPU: 0 PID: 10066 Comm: syz-executor706 Tainted: G B 5.5.0-rc6-syzkaller #0
[ 101.655717][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 101.665867][ C0] Call Trace:
[ 101.669137][ C0]
[ 101.672022][ C0] dump_stack+0x197/0x210
[ 101.676341][ C0] panic+0x2e3/0x75c
[ 101.680220][ C0] ? add_taint.cold+0x16/0x16
[ 101.684878][ C0] ? retint_kernel+0x2b/0x2b
[ 101.689458][ C0] ? trace_hardirqs_on+0x5e/0x240
[ 101.694498][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 101.699156][ C0] end_report+0x47/0x4f
[ 101.703295][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 101.707959][ C0] __kasan_report.cold+0xe/0x41
[ 101.712883][ C0] ? bitmap_ip_gc+0x100/0x4f0
[ 101.717542][ C0] kasan_report+0x12/0x20
[ 101.721906][ C0] check_memory_region+0x134/0x1a0
[ 101.727130][ C0] __kasan_check_read+0x11/0x20
[ 101.731966][ C0] bitmap_ip_gc+0x100/0x4f0
[ 101.736726][ C0] call_timer_fn+0x1ac/0x780
[ 101.741300][ C0] ? bitmap_ip_test+0x170/0x170
[ 101.746137][ C0] ? msleep_interruptible+0x150/0x150
[ 101.751492][ C0] ? run_timer_softirq+0x6b1/0x1790
[ 101.756677][ C0] ? trace_hardirqs_on+0x67/0x240
[ 101.761692][ C0] ? bitmap_ip_test+0x170/0x170
[ 101.766526][ C0] ? bitmap_ip_test+0x170/0x170
[ 101.771365][ C0] run_timer_softirq+0x6c3/0x1790
[ 101.776375][ C0] ? add_timer+0x930/0x930
[ 101.780814][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130
[ 101.786956][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 101.792488][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50
[ 101.798630][ C0] ? trace_hardirqs_on+0x67/0x240
[ 101.803657][ C0] __do_softirq+0x262/0x98c
[ 101.808201][ C0] ? sched_clock_cpu+0x1b/0x1b0
[ 101.813035][ C0] irq_exit+0x19b/0x1e0
[ 101.817179][ C0] smp_apic_timer_interrupt+0x1a3/0x610
[ 101.822814][ C0] apic_timer_interrupt+0xf/0x20
[ 101.827820][ C0]
[ 101.830791][ C0] RIP: 0010:__sanitizer_cov_trace_cmp8+0x1/0x20
[ 101.837011][ C0] Code: ff 5d c3 66 0f 1f 44 00 00 55 89 f2 89 fe bf 04 00 00 00 48 89 e5 48 8b 4d 08 e8 3a ff ff ff 5d c3 0f 1f 84 00 00 00 00 00 55 <48> 89 f2 48 89 fe bf 06 00 00 00 48 89 e5 48 8b 4d 08 e8 18 ff ff
[ 101.856715][ C0] RSP: 0018:ffffc900037b7938 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[ 101.865118][ C0] RAX: ffff888093d36380 RBX: 0000000000000074 RCX: ffffffff81bb8201
[ 101.873088][ C0] RDX: 0000000000000000 RSI: ffffffff81000000 RDI: ffff8880a7636074
[ 101.881056][ C0] RBP: ffffc900037b7990 R08: ffff888093d36380 R09: ffff8880aa400a80
[ 101.889019][ C0] R10: 0000000000000000 R11: ffffea00029d8d87 R12: ffff8880a7636000
[ 101.897091][ C0] R13: ffffea00029d8d80 R14: ffff8880a7636074 R15: 0000000000000001
[ 101.905094][ C0] ? __check_object_size+0xf1/0x437
[ 101.910315][ C0] ? 0xffffffff81000000
[ 101.914470][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20
[ 101.920175][ C0] ? __check_object_size+0x10e/0x437
[ 101.925468][ C0] netlink_sendmsg+0x866/0xea0
[ 101.930261][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 101.935268][ C0] ? aa_sock_msg_perm.isra.0+0xba/0x170
[ 101.940814][ C0] ? apparmor_socket_sendmsg+0x2a/0x30
[ 101.946267][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 101.952487][ C0] ? security_socket_sendmsg+0x8d/0xc0
[ 101.957936][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 101.962916][ C0] sock_sendmsg+0xd7/0x130
[ 101.967353][ C0] ____sys_sendmsg+0x753/0x880
[ 101.972104][ C0] ? kernel_sendmsg+0x50/0x50
[ 101.976763][ C0] ? mark_held_locks+0xa4/0xf0
[ 101.981511][ C0] ? do_huge_pmd_anonymous_page+0x1463/0x1a50
[ 101.987673][ C0] ? __handle_mm_fault+0x3145/0x3cc0
[ 101.992945][ C0] ? do_huge_pmd_anonymous_page+0x1463/0x1a50
[ 101.999043][ C0] ___sys_sendmsg+0x100/0x170
[ 102.003700][ C0] ? do_huge_pmd_anonymous_page+0xceb/0x1a50
[ 102.009703][ C0] ? sendmsg_copy_msghdr+0x70/0x70
[ 102.014821][ C0] ? __do_page_fault+0x56a/0xd80
[ 102.019780][ C0] ? find_held_lock+0x35/0x130
[ 102.024526][ C0] ? __do_page_fault+0x56a/0xd80
[ 102.029448][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 102.035671][ C0] ? __fget_light+0x1a9/0x230
[ 102.040334][ C0] ? __fdget+0x1b/0x20
[ 102.044386][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[ 102.050614][ C0] __sys_sendmsg+0x105/0x1d0
[ 102.055235][ C0] ? __sys_sendmsg_sock+0xc0/0xc0
[ 102.060506][ C0] ? down_read_non_owner+0x490/0x490
[ 102.065775][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 102.071277][ C0] ? do_syscall_64+0x26/0x790
[ 102.075939][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 102.081994][ C0] ? do_syscall_64+0x26/0x790
[ 102.086670][ C0] __x64_sys_sendmsg+0x78/0xb0
[ 102.091418][ C0] do_syscall_64+0xfa/0x790
[ 102.095949][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 102.101822][ C0] RIP: 0033:0x441439
[ 102.105753][ C0] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 102.125337][ C0] RSP: 002b:00007ffcce240188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 102.133728][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441439
[ 102.141683][ C0] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
[ 102.149639][ C0] RBP: 0000000000018991 R08: 00000000004002c8 R09: 00000000004002c8
[ 102.157593][ C0] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402260
[ 102.165546][ C0] R13: 00000000004022f0 R14: 0000000000000000 R15: 0000000000000000
[ 102.174961][ C0] Kernel Offset: disabled
[ 102.179408][ C0] Rebooting in 86400 seconds..