aojea · April 23, 2019 07:58
diff --git a/BUG: unable to handle kernel NULL pointer dereference b/BUG: unable to handle kernel NULL pointer dereference
 # Create a docker container with privileges
 docker run --privileged -i -t ubuntu
 # Inside the container create an overlay and moun the /sys/class/dmi/id folder
 mkdir -p /tmp/overlay && \
 > mount -t tmpfs tmpfs /tmp/overlay && \
 > mkdir -p /tmp/overlay/{upper,work} && \
 > mount -t overlay overlay -o lowerdir=/sys/class/dmi/id,upperdir=/tmp/overlay/upper,workdir=/tmp/overlay/work /sys/class/dmi/id
 # Check that the overlay is mounted
 root@ba04ffbf6b53:/# mount
 overlay on / type overlay (rw,relatime,lowerdir=/home/aojeagarcia/docker/overlay2/l/CJ5RY5KARMA2TGYBAZXKZ2UATK:/home/aojeagarcia/docker/overlay2/l/IH76YKNGVA4ANHOR2BJREE6YO4:/home/aojeagarcia/docker/overlay2/l/XHSQFRMONPMIOATXRYRMERF4RX:/home/aojeagarcia/docker/overlay2/l/NXCCDT6GQF62DMTR2AVCOIGT52:/home/aojeagarcia/docker/overlay2/l/BG34R5QJL3GEGBP24JDPITUB6H,upperdir=/home/aojeagarcia/docker/overlay2/fb3e50a942f1a3bc47f4ff9808b21a23af5cd7971f8a5e257441ddfa4b6e644d/diff,workdir=/home/aojeagarcia/docker/overlay2/fb3e50a942f1a3bc47f4ff9808b21a23af5cd7971f8a5e257441ddfa4b6e644d/work)
 proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
 tmpfs on /dev type tmpfs (rw,nosuid,size=65536k,mode=755)
 devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)
 sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
 tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755)
 cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
 cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
 cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
 cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
 cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
 cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
 cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
 cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
 cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
 cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
 cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
 cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
 mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
 /dev/sdb4 on /etc/resolv.conf type xfs (rw,relatime,attr2,inode64,noquota)
 /dev/sdb4 on /etc/hostname type xfs (rw,relatime,attr2,inode64,noquota)
 /dev/sdb4 on /etc/hosts type xfs (rw,relatime,attr2,inode64,noquota)
 shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
 devpts on /dev/console type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)
 tmpfs on /tmp/overlay type tmpfs (rw,relatime)
 overlay on /sys/devices/virtual/dmi/id type overlay (rw,relatime,lowerdir=/sys/class/dmi/id,upperdir=/tmp/overlay/upper,workdir=/tmp/overlay/work)
 # Trying to access one of the files in the folder hits the bug
 root@ba04ffbf6b53:/# cat /sys/class/dmi/id/product_uuid
 Killed

 #########################################
 # Logs
 #########################################
 Apr 23 09:01:04 linux-6my5 dockerd[2201]: time="2019-04-23T09:01:04.601968649+02:00" level=info msg="ignoring event" module=libcontaine>
 Apr 23 09:01:04 linux-6my5 dockerd[2201]: time="2019-04-23T09:01:04+02:00" level=info msg="shim reaped" id=ba04ffbf6b5304d87b82469eb83a>
 Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799738005 CR4: 00000000001606e0
 Apr 23 09:01:04 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:01:04 linux-6my5 kernel: FS:  00007fa9a30b6740(0000) GS:ffff88082fd00000(0000) knlGS:0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
 Apr 23 09:01:04 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
 Apr 23 09:01:04 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
 Apr 23 09:01:04 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
 Apr 23 09:01:04 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
 Apr 23 09:01:04 linux-6my5 kernel: ---[ end trace 37ab66327ae6d485 ]---
 Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030
 Apr 23 09:01:04 linux-6my5 kernel:  e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
 Apr 23 09:01:04 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
 Apr 23 09:01:04 linux-6my5 kernel: Code: ee 4b 6b 00 85 c0 74 e1 5b 5d 41 5c c3 5b 31 c0 5d 41 5c c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 0>
 Apr 23 09:01:04 linux-6my5 kernel: R13: 00005621482e22de R14: 00005621482e22c0 R15: 0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: R10: 00005621482e22c1 R11: 0000000000000246 R12: 0000000000000002
 Apr 23 09:01:04 linux-6my5 kernel: RBP: 00005621482e22de R08: 0000000000000000 R09: 692f696d642f7373
 Apr 23 09:01:04 linux-6my5 kernel: RDX: 00007ffd4f0400c0 RSI: 00007ffd4f0400c0 RDI: 00005621482e22c0
 Apr 23 09:01:04 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 00005621482e22c0 RCX: 00007fa9a2786775
 Apr 23 09:01:04 linux-6my5 kernel: RSP: 002b:00007ffd4f0400b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
 Apr 23 09:01:04 linux-6my5 kernel: RIP: 0033:0x7fa9a2786775
 Apr 23 09:01:04 linux-6my5 kernel:  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
 Apr 23 09:01:04 linux-6my5 kernel:  do_syscall_64+0x7b/0x150
 Apr 23 09:01:04 linux-6my5 kernel:  SYSC_newstat+0x26/0x40
 Apr 23 09:01:04 linux-6my5 kernel:  vfs_statx+0x79/0xb0
 Apr 23 09:01:04 linux-6my5 kernel:  ? security_inode_getattr+0x42/0x60
 Apr 23 09:01:04 linux-6my5 kernel:  ? common_perm_cond+0x39/0x40
 Apr 23 09:01:04 linux-6my5 kernel:  ovl_getattr+0x58/0x180 [overlay]
 Apr 23 09:01:04 linux-6my5 kernel:  vfs_getattr+0x1c/0x40
 Apr 23 09:01:04 linux-6my5 kernel: Call Trace:
 Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799738005 CR4: 00000000001606e0
 Apr 23 09:01:04 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:01:04 linux-6my5 kernel: FS:  00007fa9a30b6740(0000) GS:ffff88082fd00000(0000) knlGS:0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: R13: 0000000000000000 R14: ffff880799752a80 R15: ffff8807a5c90cc0
 Apr 23 09:01:04 linux-6my5 kernel: R10: 0000000000000800 R11: 61c8864680b583eb R12: 00000000000007ff
 Apr 23 09:01:04 linux-6my5 kernel: RBP: ffffc90005a1bea0 R08: ffffc90005a1be58 R09: ffff8807c2dd7730
 Apr 23 09:01:04 linux-6my5 kernel: RDX: 00000000000007ff RSI: ffffc90005a1bea0 RDI: ffffc90005a1bd80
 Apr 23 09:01:04 linux-6my5 kernel: RAX: 0000000100000000 RBX: ffffc90005a1bd80 RCX: 0000000000000000
 Apr 23 09:01:04 linux-6my5 kernel: RSP: 0018:ffffc90005a1bd48 EFLAGS: 00010202
 Apr 23 09:01:04 linux-6my5 kernel: RIP: 0010:security_inode_getattr+0x9/0x60
 Apr 23 09:01:04 linux-6my5 kernel: task: ffff8807995f8040 task.stack: ffffc90005a18000
 Apr 23 09:01:04 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
 Apr 23 09:01:04 linux-6my5 kernel: CPU: 4 PID: 5035 Comm: bash Tainted: P      D    O     4.12.14-lp150.12.45-default #1 openSUSE Leap >
 Apr 23 09:01:04 linux-6my5 kernel: Oops: 0000 [#3] SMP PTI
 Apr 23 09:01:04 linux-6my5 kernel: PGD 0 P4D 0
 Apr 23 09:01:04 linux-6my5 kernel: IP: security_inode_getattr+0x9/0x60
 Apr 23 09:01:04 linux-6my5 kernel: BUG: unable to handle kernel paging request at 0000000100000030
 Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799560001 CR4: 00000000001606e0
 Apr 23 09:01:02 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:01:02 linux-6my5 kernel: FS:  00007f9f51fa7540(0000) GS:ffff88082fd80000(0000) knlGS:0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
 Apr 23 09:01:02 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
 Apr 23 09:01:02 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
 Apr 23 09:01:02 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
 Apr 23 09:01:02 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
 Apr 23 09:01:02 linux-6my5 kernel: ---[ end trace 37ab66327ae6d484 ]---
 Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030
 Apr 23 09:01:02 linux-6my5 kernel:  e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
 Apr 23 09:01:02 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
 Apr 23 09:01:02 linux-6my5 kernel: Code: 85 d2 41 89 d4 74 10 89 d6 e8 6e 33 00 00 85 c0 74 05 48 63 d8 eb e1 48 89 df e8 ed 25 00 00 4>
 Apr 23 09:01:02 linux-6my5 kernel: R13: 00007ffc34ba2f70 R14: 00007ffc34ba2f78 R15: 0000000000020000
 Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: RBP: 000055d60def1b80 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000000000000 RSI: 00007ffc34ba395d RDI: 00000000ffffff9c
 Apr 23 09:01:02 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9f51aa1c8e
 Apr 23 09:01:02 linux-6my5 kernel: RSP: 002b:00007ffc34ba2ca0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
 Apr 23 09:01:02 linux-6my5 kernel: RIP: 0033:0x7f9f51aa1c8e
 Apr 23 09:01:02 linux-6my5 kernel:  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
 Apr 23 09:01:02 linux-6my5 kernel:  do_syscall_64+0x7b/0x150
 Apr 23 09:01:02 linux-6my5 kernel:  do_sys_open+0x1a6/0x230
 Apr 23 09:01:02 linux-6my5 kernel:  ? do_sys_open+0x1a6/0x230
 Apr 23 09:01:02 linux-6my5 kernel:  ? __alloc_fd+0x44/0x170
 Apr 23 09:01:02 linux-6my5 kernel:  ? simple_attr_release+0x20/0x20
 Apr 23 09:01:02 linux-6my5 kernel:  do_filp_open+0x8c/0xf0
 Apr 23 09:01:02 linux-6my5 kernel:  ? alloc_set_pte+0x2c9/0x600
 Apr 23 09:01:02 linux-6my5 kernel:  path_openat+0x686/0x1780
 Apr 23 09:01:02 linux-6my5 kernel:  vfs_open+0x71/0x90
 Apr 23 09:01:02 linux-6my5 kernel: Call Trace:
 Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799560001 CR4: 00000000001606e0
 Apr 23 09:01:02 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:01:02 linux-6my5 kernel: FS:  00007f9f51fa7540(0000) GS:ffff88082fd80000(0000) knlGS:0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: R13: ffffc90005ccbdc0 R14: ffff88080a4b9000 R15: 0000000000000000
 Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: 61c8864680b583eb R12: 0000000000008000
 Apr 23 09:01:02 linux-6my5 kernel: RBP: 0000000000000000 R08: ffffffffa16f9230 R09: 00004c0064697575
 Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000100000000 RSI: ffffc90005ccbc78 RDI: ffff8807a5c90cc0
 Apr 23 09:01:02 linux-6my5 kernel: RAX: 0000000100000000 RBX: ffff8807a5c90cc0 RCX: ffff88079f30d8e0
 Apr 23 09:01:02 linux-6my5 kernel: RSP: 0018:ffffc90005ccbca8 EFLAGS: 00010246
 Apr 23 09:01:02 linux-6my5 kernel: RIP: 0010:ovl_d_real+0x5f/0x140 [overlay]
 Apr 23 09:01:02 linux-6my5 kernel: task: ffff880799458080 task.stack: ffffc90005cc8000
 Apr 23 09:01:02 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
 Apr 23 09:01:02 linux-6my5 kernel: CPU: 6 PID: 5154 Comm: cat Tainted: P      D    O     4.12.14-lp150.12.45-default #1 openSUSE Leap 1>
 Apr 23 09:01:02 linux-6my5 kernel: Oops: 0000 [#2] SMP PTI
 Apr 23 09:01:01 linux-6my5 kernel: PGD 0 P4D 0
 Apr 23 09:01:01 linux-6my5 kernel: IP: ovl_d_real+0x5f/0x140 [overlay]
 Apr 23 09:01:01 linux-6my5 kernel: BUG: unable to handle kernel paging request at 0000000100000030
 Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048 CR3: 000000079f338005 CR4: 00000000001606f0
 Apr 23 09:00:59 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:00:59 linux-6my5 kernel: FS:  00007fd59b72b540(0000) GS:ffff88082fc00000(0000) knlGS:0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
 Apr 23 09:00:59 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
 Apr 23 09:00:59 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
 Apr 23 09:00:59 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
 Apr 23 09:00:59 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
 Apr 23 09:00:59 linux-6my5 kernel: ---[ end trace 37ab66327ae6d483 ]---
 Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048
 Apr 23 09:00:59 linux-6my5 kernel:  e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
 Apr 23 09:00:59 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
 Apr 23 09:00:59 linux-6my5 kernel: Code: 4c 8b 63 40 b9 01 00 00 00 49 83 7c 24 10 00 4d 8b 74 24 50 0f 84 f2 00 00 00 49 83 7c 24 48 0>
 Apr 23 09:00:59 linux-6my5 kernel: R13: 00007ffc2409b230 R14: 00007ffc2409b238 R15: 0000000000020000
 Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: RBP: 000055f1240e1b80 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000000 RSI: 00007ffc2409c95d RDI: 00000000ffffff9c
 Apr 23 09:00:59 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd59b225c8e
 Apr 23 09:00:59 linux-6my5 kernel: RSP: 002b:00007ffc2409af60 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
 Apr 23 09:00:59 linux-6my5 kernel: RIP: 0033:0x7fd59b225c8e
 Apr 23 09:00:59 linux-6my5 kernel:  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
 Apr 23 09:00:59 linux-6my5 kernel:  do_syscall_64+0x7b/0x150
 Apr 23 09:00:59 linux-6my5 kernel:  do_sys_open+0x1a6/0x230
 Apr 23 09:00:59 linux-6my5 kernel:  ? do_sys_open+0x1a6/0x230
 Apr 23 09:00:59 linux-6my5 kernel:  ? __alloc_fd+0x44/0x170
 Apr 23 09:00:59 linux-6my5 kernel:  ? simple_attr_release+0x20/0x20
 Apr 23 09:00:59 linux-6my5 kernel:  do_filp_open+0x8c/0xf0
 Apr 23 09:00:59 linux-6my5 kernel:  path_openat+0x686/0x1780
 Apr 23 09:00:59 linux-6my5 kernel:  do_dentry_open+0x1b3/0x2f0
 Apr 23 09:00:59 linux-6my5 kernel:  ? kernfs_fop_release+0xa0/0xa0
 Apr 23 09:00:59 linux-6my5 kernel: Call Trace:
 Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048 CR3: 000000079f338005 CR4: 00000000001606f0
 Apr 23 09:00:59 linux-6my5 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 Apr 23 09:00:59 linux-6my5 kernel: FS:  00007fd59b72b540(0000) GS:ffff88082fc00000(0000) knlGS:0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
 Apr 23 09:00:59 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
 Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
 Apr 23 09:00:59 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
 Apr 23 09:00:59 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
 Apr 23 09:00:59 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
 Apr 23 09:00:59 linux-6my5 kernel: task: ffff880799458080 task.stack: ffffc90005cc0000
 Apr 23 09:00:59 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
 Apr 23 09:00:59 linux-6my5 kernel: CPU: 0 PID: 5150 Comm: cat Tainted: P           O     4.12.14-lp150.12.45-default #1 openSUSE Leap 1>
 Apr 23 09:00:59 linux-6my5 kernel: Oops: 0000 [#1] SMP PTI
 Apr 23 09:00:59 linux-6my5 kernel: PGD 0 P4D 0
 Apr 23 09:00:59 linux-6my5 kernel: IP: kernfs_fop_open+0x6d/0x390
 Apr 23 09:00:59 linux-6my5 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

 ###################
 # Docker info
 ###################
  docker info
 Containers: 28
 Running: 3
 Paused: 0
 Stopped: 25
 Images: 174
 Server Version: 18.09.0
 Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: oci runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
 runc version: 69663f0bd4b60df09991c08812a60108003fa340
 init version: v0.1.3_catatonit (expected: fec3683b971d9c3ef73f284f176672c44b448662)
 Security Options:
 apparmor
 seccomp
  Profile: default
 Kernel Version: 4.12.14-lp150.12.45-default
 Operating System: openSUSE Leap 15.0
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 31.39GiB
 Name: linux-6my5
 ID: IPDH:LMDI:IXZU:GS54:TBXP:FG3N:PXEQ:Y5IU:MHHL:IT5C:QIYE:TRHN
 Docker Root Dir: /home/aojeagarcia/docker
 Debug Mode (client): false
 Debug Mode (server): false
 Username: aojea
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
	# Create a docker container with privileges
	docker run --privileged -i -t ubuntu
	# Inside the container create an overlay and moun the /sys/class/dmi/id folder
	mkdir -p /tmp/overlay && \
	> mount -t tmpfs tmpfs /tmp/overlay && \
	> mkdir -p /tmp/overlay/{upper,work} && \
	> mount -t overlay overlay -o lowerdir=/sys/class/dmi/id,upperdir=/tmp/overlay/upper,workdir=/tmp/overlay/work /sys/class/dmi/id
	# Check that the overlay is mounted
	root@ba04ffbf6b53:/# mount
	overlay on / type overlay (rw,relatime,lowerdir=/home/aojeagarcia/docker/overlay2/l/CJ5RY5KARMA2TGYBAZXKZ2UATK:/home/aojeagarcia/docker/overlay2/l/IH76YKNGVA4ANHOR2BJREE6YO4:/home/aojeagarcia/docker/overlay2/l/XHSQFRMONPMIOATXRYRMERF4RX:/home/aojeagarcia/docker/overlay2/l/NXCCDT6GQF62DMTR2AVCOIGT52:/home/aojeagarcia/docker/overlay2/l/BG34R5QJL3GEGBP24JDPITUB6H,upperdir=/home/aojeagarcia/docker/overlay2/fb3e50a942f1a3bc47f4ff9808b21a23af5cd7971f8a5e257441ddfa4b6e644d/diff,workdir=/home/aojeagarcia/docker/overlay2/fb3e50a942f1a3bc47f4ff9808b21a23af5cd7971f8a5e257441ddfa4b6e644d/work)
	proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
	tmpfs on /dev type tmpfs (rw,nosuid,size=65536k,mode=755)
	devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)
	sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
	tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755)
	cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
	cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
	cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
	cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
	cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
	cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
	cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
	cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
	cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
	cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
	cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
	cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
	mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
	/dev/sdb4 on /etc/resolv.conf type xfs (rw,relatime,attr2,inode64,noquota)
	/dev/sdb4 on /etc/hostname type xfs (rw,relatime,attr2,inode64,noquota)
	/dev/sdb4 on /etc/hosts type xfs (rw,relatime,attr2,inode64,noquota)
	shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=65536k)
	devpts on /dev/console type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=666)
	tmpfs on /tmp/overlay type tmpfs (rw,relatime)
	overlay on /sys/devices/virtual/dmi/id type overlay (rw,relatime,lowerdir=/sys/class/dmi/id,upperdir=/tmp/overlay/upper,workdir=/tmp/overlay/work)
	# Trying to access one of the files in the folder hits the bug
	root@ba04ffbf6b53:/# cat /sys/class/dmi/id/product_uuid
	Killed

	#########################################
	# Logs
	#########################################
	Apr 23 09:01:04 linux-6my5 dockerd[2201]: time="2019-04-23T09:01:04.601968649+02:00" level=info msg="ignoring event" module=libcontaine>
	Apr 23 09:01:04 linux-6my5 dockerd[2201]: time="2019-04-23T09:01:04+02:00" level=info msg="shim reaped" id=ba04ffbf6b5304d87b82469eb83a>
	Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799738005 CR4: 00000000001606e0
	Apr 23 09:01:04 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:01:04 linux-6my5 kernel: FS: 00007fa9a30b6740(0000) GS:ffff88082fd00000(0000) knlGS:0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
	Apr 23 09:01:04 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
	Apr 23 09:01:04 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
	Apr 23 09:01:04 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
	Apr 23 09:01:04 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
	Apr 23 09:01:04 linux-6my5 kernel: ---[ end trace 37ab66327ae6d485 ]---
	Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030
	Apr 23 09:01:04 linux-6my5 kernel: e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
	Apr 23 09:01:04 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
	Apr 23 09:01:04 linux-6my5 kernel: Code: ee 4b 6b 00 85 c0 74 e1 5b 5d 41 5c c3 5b 31 c0 5d 41 5c c3 31 c0 c3 66 66 2e 0f 1f 84 00 00 0>
	Apr 23 09:01:04 linux-6my5 kernel: R13: 00005621482e22de R14: 00005621482e22c0 R15: 0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: R10: 00005621482e22c1 R11: 0000000000000246 R12: 0000000000000002
	Apr 23 09:01:04 linux-6my5 kernel: RBP: 00005621482e22de R08: 0000000000000000 R09: 692f696d642f7373
	Apr 23 09:01:04 linux-6my5 kernel: RDX: 00007ffd4f0400c0 RSI: 00007ffd4f0400c0 RDI: 00005621482e22c0
	Apr 23 09:01:04 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 00005621482e22c0 RCX: 00007fa9a2786775
	Apr 23 09:01:04 linux-6my5 kernel: RSP: 002b:00007ffd4f0400b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
	Apr 23 09:01:04 linux-6my5 kernel: RIP: 0033:0x7fa9a2786775
	Apr 23 09:01:04 linux-6my5 kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2
	Apr 23 09:01:04 linux-6my5 kernel: do_syscall_64+0x7b/0x150
	Apr 23 09:01:04 linux-6my5 kernel: SYSC_newstat+0x26/0x40
	Apr 23 09:01:04 linux-6my5 kernel: vfs_statx+0x79/0xb0
	Apr 23 09:01:04 linux-6my5 kernel: ? security_inode_getattr+0x42/0x60
	Apr 23 09:01:04 linux-6my5 kernel: ? common_perm_cond+0x39/0x40
	Apr 23 09:01:04 linux-6my5 kernel: ovl_getattr+0x58/0x180 [overlay]
	Apr 23 09:01:04 linux-6my5 kernel: vfs_getattr+0x1c/0x40
	Apr 23 09:01:04 linux-6my5 kernel: Call Trace:
	Apr 23 09:01:04 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799738005 CR4: 00000000001606e0
	Apr 23 09:01:04 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:01:04 linux-6my5 kernel: FS: 00007fa9a30b6740(0000) GS:ffff88082fd00000(0000) knlGS:0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: R13: 0000000000000000 R14: ffff880799752a80 R15: ffff8807a5c90cc0
	Apr 23 09:01:04 linux-6my5 kernel: R10: 0000000000000800 R11: 61c8864680b583eb R12: 00000000000007ff
	Apr 23 09:01:04 linux-6my5 kernel: RBP: ffffc90005a1bea0 R08: ffffc90005a1be58 R09: ffff8807c2dd7730
	Apr 23 09:01:04 linux-6my5 kernel: RDX: 00000000000007ff RSI: ffffc90005a1bea0 RDI: ffffc90005a1bd80
	Apr 23 09:01:04 linux-6my5 kernel: RAX: 0000000100000000 RBX: ffffc90005a1bd80 RCX: 0000000000000000
	Apr 23 09:01:04 linux-6my5 kernel: RSP: 0018:ffffc90005a1bd48 EFLAGS: 00010202
	Apr 23 09:01:04 linux-6my5 kernel: RIP: 0010:security_inode_getattr+0x9/0x60
	Apr 23 09:01:04 linux-6my5 kernel: task: ffff8807995f8040 task.stack: ffffc90005a18000
	Apr 23 09:01:04 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
	Apr 23 09:01:04 linux-6my5 kernel: CPU: 4 PID: 5035 Comm: bash Tainted: P D O 4.12.14-lp150.12.45-default #1 openSUSE Leap >
	Apr 23 09:01:04 linux-6my5 kernel: Oops: 0000 [#3] SMP PTI
	Apr 23 09:01:04 linux-6my5 kernel: PGD 0 P4D 0
	Apr 23 09:01:04 linux-6my5 kernel: IP: security_inode_getattr+0x9/0x60
	Apr 23 09:01:04 linux-6my5 kernel: BUG: unable to handle kernel paging request at 0000000100000030
	Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799560001 CR4: 00000000001606e0
	Apr 23 09:01:02 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:01:02 linux-6my5 kernel: FS: 00007f9f51fa7540(0000) GS:ffff88082fd80000(0000) knlGS:0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
	Apr 23 09:01:02 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
	Apr 23 09:01:02 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
	Apr 23 09:01:02 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
	Apr 23 09:01:02 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
	Apr 23 09:01:02 linux-6my5 kernel: ---[ end trace 37ab66327ae6d484 ]---
	Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030
	Apr 23 09:01:02 linux-6my5 kernel: e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
	Apr 23 09:01:02 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
	Apr 23 09:01:02 linux-6my5 kernel: Code: 85 d2 41 89 d4 74 10 89 d6 e8 6e 33 00 00 85 c0 74 05 48 63 d8 eb e1 48 89 df e8 ed 25 00 00 4>
	Apr 23 09:01:02 linux-6my5 kernel: R13: 00007ffc34ba2f70 R14: 00007ffc34ba2f78 R15: 0000000000020000
	Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: RBP: 000055d60def1b80 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000000000000 RSI: 00007ffc34ba395d RDI: 00000000ffffff9c
	Apr 23 09:01:02 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9f51aa1c8e
	Apr 23 09:01:02 linux-6my5 kernel: RSP: 002b:00007ffc34ba2ca0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
	Apr 23 09:01:02 linux-6my5 kernel: RIP: 0033:0x7f9f51aa1c8e
	Apr 23 09:01:02 linux-6my5 kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2
	Apr 23 09:01:02 linux-6my5 kernel: do_syscall_64+0x7b/0x150
	Apr 23 09:01:02 linux-6my5 kernel: do_sys_open+0x1a6/0x230
	Apr 23 09:01:02 linux-6my5 kernel: ? do_sys_open+0x1a6/0x230
	Apr 23 09:01:02 linux-6my5 kernel: ? __alloc_fd+0x44/0x170
	Apr 23 09:01:02 linux-6my5 kernel: ? simple_attr_release+0x20/0x20
	Apr 23 09:01:02 linux-6my5 kernel: do_filp_open+0x8c/0xf0
	Apr 23 09:01:02 linux-6my5 kernel: ? alloc_set_pte+0x2c9/0x600
	Apr 23 09:01:02 linux-6my5 kernel: path_openat+0x686/0x1780
	Apr 23 09:01:02 linux-6my5 kernel: vfs_open+0x71/0x90
	Apr 23 09:01:02 linux-6my5 kernel: Call Trace:
	Apr 23 09:01:02 linux-6my5 kernel: CR2: 0000000100000030 CR3: 0000000799560001 CR4: 00000000001606e0
	Apr 23 09:01:02 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:01:02 linux-6my5 kernel: FS: 00007f9f51fa7540(0000) GS:ffff88082fd80000(0000) knlGS:0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: R13: ffffc90005ccbdc0 R14: ffff88080a4b9000 R15: 0000000000000000
	Apr 23 09:01:02 linux-6my5 kernel: R10: 0000000000000000 R11: 61c8864680b583eb R12: 0000000000008000
	Apr 23 09:01:02 linux-6my5 kernel: RBP: 0000000000000000 R08: ffffffffa16f9230 R09: 00004c0064697575
	Apr 23 09:01:02 linux-6my5 kernel: RDX: 0000000100000000 RSI: ffffc90005ccbc78 RDI: ffff8807a5c90cc0
	Apr 23 09:01:02 linux-6my5 kernel: RAX: 0000000100000000 RBX: ffff8807a5c90cc0 RCX: ffff88079f30d8e0
	Apr 23 09:01:02 linux-6my5 kernel: RSP: 0018:ffffc90005ccbca8 EFLAGS: 00010246
	Apr 23 09:01:02 linux-6my5 kernel: RIP: 0010:ovl_d_real+0x5f/0x140 [overlay]
	Apr 23 09:01:02 linux-6my5 kernel: task: ffff880799458080 task.stack: ffffc90005cc8000
	Apr 23 09:01:02 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
	Apr 23 09:01:02 linux-6my5 kernel: CPU: 6 PID: 5154 Comm: cat Tainted: P D O 4.12.14-lp150.12.45-default #1 openSUSE Leap 1>
	Apr 23 09:01:02 linux-6my5 kernel: Oops: 0000 [#2] SMP PTI
	Apr 23 09:01:01 linux-6my5 kernel: PGD 0 P4D 0
	Apr 23 09:01:01 linux-6my5 kernel: IP: ovl_d_real+0x5f/0x140 [overlay]
	Apr 23 09:01:01 linux-6my5 kernel: BUG: unable to handle kernel paging request at 0000000100000030
	Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048 CR3: 000000079f338005 CR4: 00000000001606f0
	Apr 23 09:00:59 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:00:59 linux-6my5 kernel: FS: 00007fd59b72b540(0000) GS:ffff88082fc00000(0000) knlGS:0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
	Apr 23 09:00:59 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
	Apr 23 09:00:59 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
	Apr 23 09:00:59 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
	Apr 23 09:00:59 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
	Apr 23 09:00:59 linux-6my5 kernel: ---[ end trace 37ab66327ae6d483 ]---
	Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048
	Apr 23 09:00:59 linux-6my5 kernel: e1000e kvm video ath snd_pcm mxm_wmi irqbypass crc32_pclmul ghash_clmulni_intel joydev pcbc mac8021>
	Apr 23 09:00:59 linux-6my5 kernel: Modules linked in: veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_net>
	Apr 23 09:00:59 linux-6my5 kernel: Code: 4c 8b 63 40 b9 01 00 00 00 49 83 7c 24 10 00 4d 8b 74 24 50 0f 84 f2 00 00 00 49 83 7c 24 48 0>
	Apr 23 09:00:59 linux-6my5 kernel: R13: 00007ffc2409b230 R14: 00007ffc2409b238 R15: 0000000000020000
	Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: RBP: 000055f1240e1b80 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000000 RSI: 00007ffc2409c95d RDI: 00000000ffffff9c
	Apr 23 09:00:59 linux-6my5 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd59b225c8e
	Apr 23 09:00:59 linux-6my5 kernel: RSP: 002b:00007ffc2409af60 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
	Apr 23 09:00:59 linux-6my5 kernel: RIP: 0033:0x7fd59b225c8e
	Apr 23 09:00:59 linux-6my5 kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2
	Apr 23 09:00:59 linux-6my5 kernel: do_syscall_64+0x7b/0x150
	Apr 23 09:00:59 linux-6my5 kernel: do_sys_open+0x1a6/0x230
	Apr 23 09:00:59 linux-6my5 kernel: ? do_sys_open+0x1a6/0x230
	Apr 23 09:00:59 linux-6my5 kernel: ? __alloc_fd+0x44/0x170
	Apr 23 09:00:59 linux-6my5 kernel: ? simple_attr_release+0x20/0x20
	Apr 23 09:00:59 linux-6my5 kernel: do_filp_open+0x8c/0xf0
	Apr 23 09:00:59 linux-6my5 kernel: path_openat+0x686/0x1780
	Apr 23 09:00:59 linux-6my5 kernel: do_dentry_open+0x1b3/0x2f0
	Apr 23 09:00:59 linux-6my5 kernel: ? kernfs_fop_release+0xa0/0xa0
	Apr 23 09:00:59 linux-6my5 kernel: Call Trace:
	Apr 23 09:00:59 linux-6my5 kernel: CR2: 0000000000000048 CR3: 000000079f338005 CR4: 00000000001606f0
	Apr 23 09:00:59 linux-6my5 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	Apr 23 09:00:59 linux-6my5 kernel: FS: 00007fd59b72b540(0000) GS:ffff88082fc00000(0000) knlGS:0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: R13: ffff8807a2607900 R14: 0000000000000001 R15: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: R10: 0000000000000000 R11: ffff8807a5c90cc0 R12: ffff8807d5f09000
	Apr 23 09:00:59 linux-6my5 kernel: RBP: 0000000000000040 R08: 0000000000000000 R09: 0000000000000000
	Apr 23 09:00:59 linux-6my5 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8807a3b54b00
	Apr 23 09:00:59 linux-6my5 kernel: RAX: ffff8807a3b54b00 RBX: ffff8807a3b54b00 RCX: 0000000000000001
	Apr 23 09:00:59 linux-6my5 kernel: RSP: 0018:ffffc90005cc3c70 EFLAGS: 00010286
	Apr 23 09:00:59 linux-6my5 kernel: RIP: 0010:kernfs_fop_open+0x6d/0x390
	Apr 23 09:00:59 linux-6my5 kernel: task: ffff880799458080 task.stack: ffffc90005cc0000
	Apr 23 09:00:59 linux-6my5 kernel: Hardware name: Dell Inc. Precision Tower 5810/0HHV7N, BIOS A19 05/08/2017
	Apr 23 09:00:59 linux-6my5 kernel: CPU: 0 PID: 5150 Comm: cat Tainted: P O 4.12.14-lp150.12.45-default #1 openSUSE Leap 1>
	Apr 23 09:00:59 linux-6my5 kernel: Oops: 0000 [#1] SMP PTI
	Apr 23 09:00:59 linux-6my5 kernel: PGD 0 P4D 0
	Apr 23 09:00:59 linux-6my5 kernel: IP: kernfs_fop_open+0x6d/0x390
	Apr 23 09:00:59 linux-6my5 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

	###################
	# Docker info
	###################
	docker info
	Containers: 28
	Running: 3
	Paused: 0
	Stopped: 25
	Images: 174
	Server Version: 18.09.0
	Storage Driver: overlay2
	Backing Filesystem: xfs
	Supports d_type: true
	Native Overlay Diff: true
	Logging Driver: json-file
	Cgroup Driver: cgroupfs
	Plugins:
	Volume: local
	Network: bridge host macvlan null overlay
	Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
	Swarm: inactive
	Runtimes: oci runc
	Default Runtime: runc
	Init Binary: docker-init
	containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
	runc version: 69663f0bd4b60df09991c08812a60108003fa340
	init version: v0.1.3_catatonit (expected: fec3683b971d9c3ef73f284f176672c44b448662)
	Security Options:
	apparmor
	seccomp
	Profile: default
	Kernel Version: 4.12.14-lp150.12.45-default
	Operating System: openSUSE Leap 15.0
	OSType: linux
	Architecture: x86_64
	CPUs: 8
	Total Memory: 31.39GiB
	Name: linux-6my5
	ID: IPDH:LMDI:IXZU:GS54:TBXP:FG3N:PXEQ:Y5IU:MHHL:IT5C:QIYE:TRHN
	Docker Root Dir: /home/aojeagarcia/docker
	Debug Mode (client): false
	Debug Mode (server): false
	Username: aojea
	Registry: https://index.docker.io/v1/
	Labels:
	Experimental: false