[ 88.549146][ T27] audit: type=1800 audit(1579439674.228:27): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 88.589451][ T27] audit: type=1800 audit(1579439674.248:28): pid=9843 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 89.422923][ T27] audit: type=1800 audit(1579439675.178:29): pid=9843 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 [ 89.443133][ T27] audit: type=1800 audit(1579439675.178:30): pid=9843 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 '10.128.0.180' (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 syzkaller login: [ 103.889606][ C0] ================================================================== [ 103.898039][ C0] BUG: KASAN: slab-out-of-bounds in bitmap_port_gc+0x112/0x4f0 [ 103.905639][ C0] Read of size 8 at addr ffff8880a2837040 by task syz-executor044/9995 [ 103.913869][ C0] [ 103.916232][ C0] CPU: 0 PID: 9995 Comm: syz-executor044 Not tainted 5.5.0-rc6-syzkaller #0 [ 103.925141][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.935197][ C0] Call Trace: [ 103.938465][ C0] [ 103.941324][ C0] dump_stack+0x197/0x210 [ 103.945982][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 103.950835][ C0] print_address_description.constprop.0.cold+0xd4/0x30b [ 103.958364][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 103.964219][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 103.969276][ C0] __kasan_report.cold+0x1b/0x41 [ 103.974783][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 103.979831][ C0] kasan_report+0x12/0x20 [ 103.984369][ C0] check_memory_region+0x134/0x1a0 [ 103.989625][ C0] __kasan_check_read+0x11/0x20 [ 103.994495][ C0] bitmap_port_gc+0x112/0x4f0 [ 103.999176][ C0] call_timer_fn+0x1ac/0x780 [ 104.003776][ C0] ? bitmap_port_test+0x170/0x170 [ 104.008814][ C0] ? msleep_interruptible+0x150/0x150 [ 104.014362][ C0] ? run_timer_softirq+0x6b1/0x1790 [ 104.019745][ C0] ? trace_hardirqs_on+0x67/0x240 [ 104.025095][ C0] ? bitmap_port_test+0x170/0x170 [ 104.030215][ C0] ? bitmap_port_test+0x170/0x170 [ 104.035246][ C0] run_timer_softirq+0x6c3/0x1790 [ 104.040518][ C0] ? add_timer+0x930/0x930 [ 104.044948][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 104.051148][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 104.057389][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 104.063363][ C0] ? trace_hardirqs_on+0x67/0x240 [ 104.068413][ C0] __do_softirq+0x262/0x98c [ 104.072921][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 104.078035][ C0] irq_exit+0x19b/0x1e0 [ 104.082260][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 104.087831][ C0] apic_timer_interrupt+0xf/0x20 [ 104.092903][ C0] [ 104.095831][ C0] RIP: 0010:in_lock_functions+0x14/0x20 [ 104.101396][ C0] Code: 00 eb 88 0f 1f 00 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 31 c0 48 81 ff a8 2e d4 87 72 0c 31 c0 48 81 ff 4d 3d d4 87 <0f> 92 c0 c3 cc cc cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 [ 104.121451][ C0] RSP: 0018:ffffc900020a79c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 104.129857][ C0] RAX: 0000000000000000 RBX: ffffffff87d42ec3 RCX: 1ffffffff16cc29c [ 104.138153][ C0] RDX: 0000000000000000 RSI: ffffffff81c37084 RDI: ffffffff87d42ec3 [ 104.146465][ C0] RBP: ffffc900020a79e0 R08: ffff88808d41c300 R09: ffffed1015d0703d [ 104.154641][ C0] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff88821b802220 [ 104.162913][ C0] R13: ffff88821b802220 R14: ffffffff81c36be8 R15: 00000000ffffffff [ 104.173154][ C0] ? dput+0x38/0xe10 [ 104.177121][ C0] ? _raw_spin_lock+0x13/0x40 [ 104.181805][ C0] ? dput+0x4d4/0xe10 [ 104.185928][ C0] ? _raw_spin_lock+0x13/0x40 [ 104.190620][ C0] ? preempt_count_add+0x7a/0x160 [ 104.195708][ C0] _raw_spin_lock+0x13/0x40 [ 104.200215][ C0] dput+0x4dc/0xe10 [ 104.204025][ C0] proc_flush_task+0x291/0x4c0 [ 104.208799][ C0] ? tgid_pidfd_to_pid+0xb0/0xb0 [ 104.213744][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 104.218805][ C0] ? __kasan_check_read+0x11/0x20 [ 104.223835][ C0] release_task+0x187/0x15a0 [ 104.228614][ C0] ? lockdep_hardirqs_on+0x421/0x5e0 [ 104.234039][ C0] ? trace_hardirqs_on+0x67/0x240 [ 104.239201][ C0] wait_consider_task+0x2e87/0x3ae0 [ 104.244605][ C0] ? release_task+0x15a0/0x15a0 [ 104.249459][ C0] ? lock_acquire+0x190/0x410 [ 104.254168][ C0] ? do_wait+0x3c3/0xa10 [ 104.258414][ C0] ? __kasan_check_write+0x14/0x20 [ 104.263531][ C0] do_wait+0x452/0xa10 [ 104.267608][ C0] ? wait_consider_task+0x3ae0/0x3ae0 [ 104.272979][ C0] ? __kasan_check_read+0x11/0x20 [ 104.277995][ C0] ? _copy_to_user+0x118/0x160 [ 104.282858][ C0] kernel_wait4+0x171/0x290 [ 104.287350][ C0] ? __ia32_sys_waitid+0x140/0x140 [ 104.292572][ C0] ? task_stopped_code+0x180/0x180 [ 104.297687][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 104.303287][ C0] ? do_fast_syscall_32+0xd1/0xe16 [ 104.308427][ C0] ? entry_SYSENTER_compat+0x70/0x7f [ 104.313821][ C0] ? do_fast_syscall_32+0xd1/0xe16 [ 104.318930][ C0] __ia32_sys_waitpid+0x74/0xb0 [ 104.323909][ C0] do_fast_syscall_32+0x27b/0xe16 [ 104.329063][ C0] entry_SYSENTER_compat+0x70/0x7f [ 104.334338][ C0] RIP: 0023:0xf7f6a9a9 [ 104.338398][ C0] Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 104.358147][ C0] RSP: 002b:00000000ff9d1ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 104.366890][ C0] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00000000ff9d1bd8 [ 104.374863][ C0] RDX: 0000000040000001 RSI: 00000000000195af RDI: 0000000000000000 [ 104.382937][ C0] RBP: 00000000ff9d1bf8 R08: 0000000000000000 R09: 0000000000000000 [ 104.390906][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 104.398998][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 104.407066][ C0] [ 104.409391][ C0] Allocated by task 9996: [ 104.413842][ C0] save_stack+0x23/0x90 [ 104.418117][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 104.423741][ C0] kasan_kmalloc+0x9/0x10 [ 104.428073][ C0] __kmalloc+0x163/0x770 [ 104.432308][ C0] ip_set_alloc+0x38/0x5e [ 104.436707][ C0] bitmap_port_create+0x3dc/0x7c0 [ 104.441778][ C0] ip_set_create+0x6f1/0x1500 [ 104.446455][ C0] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 104.451399][ C0] netlink_rcv_skb+0x177/0x450 [ 104.456389][ C0] nfnetlink_rcv+0x1ba/0x460 [ 104.460974][ C0] netlink_unicast+0x58c/0x7d0 [ 104.465740][ C0] netlink_sendmsg+0x91c/0xea0 [ 104.470497][ C0] sock_sendmsg+0xd7/0x130 [ 104.474911][ C0] ____sys_sendmsg+0x753/0x880 [ 104.479918][ C0] ___sys_sendmsg+0x100/0x170 [ 104.484728][ C0] __sys_sendmsg+0x105/0x1d0 [ 104.489334][ C0] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 104.494804][ C0] do_fast_syscall_32+0x27b/0xe16 [ 104.499825][ C0] entry_SYSENTER_compat+0x70/0x7f [ 104.504927][ C0] [ 104.508356][ C0] Freed by task 9727: [ 104.512926][ C0] save_stack+0x23/0x90 [ 104.517134][ C0] __kasan_slab_free+0x102/0x150 [ 104.522084][ C0] kasan_slab_free+0xe/0x10 [ 104.526580][ C0] kfree+0x10a/0x2c0 [ 104.530471][ C0] tomoyo_check_open_permission+0x19e/0x3e0 [ 104.536444][ C0] tomoyo_file_open+0xa9/0xd0 [ 104.541262][ C0] security_file_open+0x71/0x300 [ 104.546195][ C0] do_dentry_open+0x37a/0x1380 [ 104.550949][ C0] vfs_open+0xa0/0xd0 [ 104.554922][ C0] path_openat+0x118b/0x3180 [ 104.559587][ C0] do_filp_open+0x1a1/0x280 [ 104.564127][ C0] do_sys_open+0x3fe/0x5d0 [ 104.568555][ C0] __x64_sys_open+0x7e/0xc0 [ 104.573055][ C0] do_syscall_64+0xfa/0x790 [ 104.577648][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 104.583640][ C0] [ 104.585956][ C0] The buggy address belongs to the object at ffff8880a2837040 [ 104.585956][ C0] which belongs to the cache kmalloc-32 of size 32 [ 104.600179][ C0] The buggy address is located 0 bytes inside of [ 104.600179][ C0] 32-byte region [ffff8880a2837040, ffff8880a2837060) [ 104.613182][ C0] The buggy address belongs to the page: [ 104.618832][ C0] page:ffffea00028a0dc0 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a2837fc1 [ 104.629440][ C0] raw: 00fffe0000000200 ffffea00028b89c8 ffffea00025fc888 ffff8880aa4001c0 [ 104.638023][ C0] raw: ffff8880a2837fc1 ffff8880a2837000 000000010000003f 0000000000000000 [ 104.646853][ C0] page dumped because: kasan: bad access detected [ 104.653282][ C0] [ 104.655611][ C0] Memory state around the buggy address: [ 104.661233][ C0] ffff8880a2836f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 104.669697][ C0] ffff8880a2836f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 104.678024][ C0] >ffff8880a2837000: 06 fc fc fc fc fc fc fc 04 fc fc fc fc fc fc fc [ 104.686122][ C0] ^ [ 104.692308][ C0] ffff8880a2837080: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 104.700369][ C0] ffff8880a2837100: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 104.708503][ C0] ================================================================== [ 104.716553][ C0] Disabling lock debugging due to kernel taint [ 104.722775][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 104.729377][ C0] CPU: 0 PID: 9995 Comm: syz-executor044 Tainted: G B 5.5.0-rc6-syzkaller #0 [ 104.739435][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.749480][ C0] Call Trace: [ 104.753042][ C0] [ 104.755897][ C0] dump_stack+0x197/0x210 [ 104.760216][ C0] panic+0x2e3/0x75c [ 104.764104][ C0] ? add_taint.cold+0x16/0x16 [ 104.768917][ C0] ? retint_kernel+0x2b/0x2b [ 104.773496][ C0] ? trace_hardirqs_on+0x5e/0x240 [ 104.778585][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 104.783446][ C0] end_report+0x47/0x4f [ 104.787592][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 104.792436][ C0] __kasan_report.cold+0xe/0x41 [ 104.797892][ C0] ? bitmap_port_gc+0x112/0x4f0 [ 104.802988][ C0] kasan_report+0x12/0x20 [ 104.807311][ C0] check_memory_region+0x134/0x1a0 [ 104.812412][ C0] __kasan_check_read+0x11/0x20 [ 104.817251][ C0] bitmap_port_gc+0x112/0x4f0 [ 104.821935][ C0] call_timer_fn+0x1ac/0x780 [ 104.826517][ C0] ? bitmap_port_test+0x170/0x170 [ 104.831590][ C0] ? msleep_interruptible+0x150/0x150 [ 104.836953][ C0] ? run_timer_softirq+0x6b1/0x1790 [ 104.842148][ C0] ? trace_hardirqs_on+0x67/0x240 [ 104.847173][ C0] ? bitmap_port_test+0x170/0x170 [ 104.852858][ C0] ? bitmap_port_test+0x170/0x170 [ 104.857918][ C0] run_timer_softirq+0x6c3/0x1790 [ 104.862932][ C0] ? add_timer+0x930/0x930 [ 104.867486][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 104.873635][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 104.879171][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 104.885145][ C0] ? trace_hardirqs_on+0x67/0x240 [ 104.890203][ C0] __do_softirq+0x262/0x98c [ 104.894709][ C0] ? sched_clock_cpu+0x1b/0x1b0 [ 104.899699][ C0] irq_exit+0x19b/0x1e0 [ 104.903850][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 104.909404][ C0] apic_timer_interrupt+0xf/0x20 [ 104.914332][ C0] [ 104.917271][ C0] RIP: 0010:in_lock_functions+0x14/0x20 [ 104.922806][ C0] Code: 00 eb 88 0f 1f 00 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 31 c0 48 81 ff a8 2e d4 87 72 0c 31 c0 48 81 ff 4d 3d d4 87 <0f> 92 c0 c3 cc cc cc cc cc cc cc cc 55 48 89 e5 41 57 41 56 41 55 [ 104.942600][ C0] RSP: 0018:ffffc900020a79c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 104.951068][ C0] RAX: 0000000000000000 RBX: ffffffff87d42ec3 RCX: 1ffffffff16cc29c [ 104.959132][ C0] RDX: 0000000000000000 RSI: ffffffff81c37084 RDI: ffffffff87d42ec3 [ 104.967148][ C0] RBP: ffffc900020a79e0 R08: ffff88808d41c300 R09: ffffed1015d0703d [ 104.975118][ C0] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff88821b802220 [ 104.983128][ C0] R13: ffff88821b802220 R14: ffffffff81c36be8 R15: 00000000ffffffff [ 104.991110][ C0] ? dput+0x38/0xe10 [ 104.995008][ C0] ? _raw_spin_lock+0x13/0x40 [ 104.999682][ C0] ? dput+0x4d4/0xe10 [ 105.003776][ C0] ? _raw_spin_lock+0x13/0x40 [ 105.008433][ C0] ? preempt_count_add+0x7a/0x160 [ 105.013445][ C0] _raw_spin_lock+0x13/0x40 [ 105.017953][ C0] dput+0x4dc/0xe10 [ 105.021756][ C0] proc_flush_task+0x291/0x4c0 [ 105.026510][ C0] ? tgid_pidfd_to_pid+0xb0/0xb0 [ 105.031624][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 105.036640][ C0] ? __kasan_check_read+0x11/0x20 [ 105.041657][ C0] release_task+0x187/0x15a0 [ 105.046247][ C0] ? lockdep_hardirqs_on+0x421/0x5e0 [ 105.051546][ C0] ? trace_hardirqs_on+0x67/0x240 [ 105.056615][ C0] wait_consider_task+0x2e87/0x3ae0 [ 105.061978][ C0] ? release_task+0x15a0/0x15a0 [ 105.066889][ C0] ? lock_acquire+0x190/0x410 [ 105.071576][ C0] ? do_wait+0x3c3/0xa10 [ 105.076214][ C0] ? __kasan_check_write+0x14/0x20 [ 105.081321][ C0] do_wait+0x452/0xa10 [ 105.085401][ C0] ? wait_consider_task+0x3ae0/0x3ae0 [ 105.090773][ C0] ? __kasan_check_read+0x11/0x20 [ 105.095853][ C0] ? _copy_to_user+0x118/0x160 [ 105.100670][ C0] kernel_wait4+0x171/0x290 [ 105.105173][ C0] ? __ia32_sys_waitid+0x140/0x140 [ 105.110464][ C0] ? task_stopped_code+0x180/0x180 [ 105.115618][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 105.121164][ C0] ? do_fast_syscall_32+0xd1/0xe16 [ 105.126411][ C0] ? entry_SYSENTER_compat+0x70/0x7f [ 105.131703][ C0] ? do_fast_syscall_32+0xd1/0xe16 [ 105.136803][ C0] __ia32_sys_waitpid+0x74/0xb0 [ 105.141763][ C0] do_fast_syscall_32+0x27b/0xe16 [ 105.146836][ C0] entry_SYSENTER_compat+0x70/0x7f [ 105.152152][ C0] RIP: 0023:0xf7f6a9a9 [ 105.156200][ C0] Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 105.176060][ C0] RSP: 002b:00000000ff9d1ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 105.184468][ C0] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00000000ff9d1bd8 [ 105.192430][ C0] RDX: 0000000040000001 RSI: 00000000000195af RDI: 0000000000000000 [ 105.200393][ C0] RBP: 00000000ff9d1bf8 R08: 0000000000000000 R09: 0000000000000000 [ 105.208472][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 105.216436][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 105.226518][ C0] Kernel Offset: disabled [ 105.230920][ C0] Rebooting in 86400 seconds..