Public bug reported: I found a kernel panic issue when I was using pipework to config the network of a docker container on an x86 board with all-snap image. The issue is related to the auditing module of Linux kernel. So it should be an issue of pc-kernel-snap.
I created a simple test snap to reproduce the issue and upload it to github. https://github.com/pliu6/docker-snap-test Software environment to reproduce the bug: #snap list Name Version Rev Developer Notes core 16.04.1 714 canonical - docker 1.11.2-9 56 canonical devmode dockertest 0.0.1 x12 devmode pc 16.04-0.8 9 canonical - pc-kernel 4.4.0-53-2 51 canonical - The log is below: [ 504.783341] BUG: unable to handle kernel paging request at fffffffffffffff3 [ 504.867186] IP: [<ffffffff813fe6c0>] strlen+0x0/0x20 [ 504.926879] PGD 1e0d067 PUD 1e0f067 PMD 0 [ 504.976588] Oops: 0000 [#1] SMP [ 505.015690] Modules linked in: veth xt_addrtype br_netfilter ipt_REJECT nf_reject_ipv4 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_comment xt_conntrack iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge stp llc overlay aufs arc4 ath9k ath9k_common ath9k_hw ath mac80211 c fg80211 kvm_amd uas kvm irqbypass k10temp r8169 mii sp5100_tco mac_hid i2c_piix4 shpchp iptable_filter ip_tables ip6table_filter ip6_tables x_tables aut ofs4 mmc_block sdhci_acpi sdhci_pci sdhci virtio_scsi nls_iso8859_1 usb_storage ahci libahci [ 505.599099] CPU: 1 PID: 2414 Comm: snap-confine Not tainted 4.4.0-53-generic #74-Ubuntu [ 505.694977] Hardware name: PC Engines APU, BIOS SageBios_PCEngines_APU-45 04/05/2014 [ 505.787738] task: ffff880037637080 ti: ffff880061a70000 task.ti: ffff880061a70000 [ 505.877382] RIP: 0010:[<ffffffff813fe6c0>] [<ffffffff813fe6c0>] strlen+0x0/0x20 [ 505.966192] RSP: 0018:ffff880061a73a20 EFLAGS: 00010246 [ 506.029835] RAX: ffff880061a73b20 RBX: fffffffffffffff3 RCX: 0000000000000000 [ 506.115320] RDX: 000000000000014e RSI: fffffffffffffff3 RDI: fffffffffffffff3 [ 506.200802] RBP: ffff880061a73a38 R08: ffff88005c835138 R09: ffff880061a73a94 [ 506.286283] R10: 000000000000000e R11: ffff88005c835131 R12: ffff88007aff0480 [ 506.371767] R13: ffff880037637080 R14: ffffffff81399fc0 R15: 00000000fffffff3 [ 506.457251] FS: 00007fa9f36aa740(0000) GS:ffff88007df00000(0000) knlGS:0000000000000000 [ 506.554170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 506.623014] CR2: fffffffffffffff3 CR3: 000000007853e000 CR4: 00000000000006e0 [ 506.708497] Stack: [ 506.732624] ffffffff81122a1a ffff88007aff0480 ffff880061a73b00 ffff880061a73a60 [ 506.822056] ffffffff8139a028 ffff88007aff0480 ffff880061a73b00 ffff880037637080 [ 506.911490] ffff880061a73ad8 ffffffff8136f088 ffffffff812285c0 ffff880061a73af0 [ 507.000926] Call Trace: [ 507.030263] [<ffffffff81122a1a>] ? audit_log_untrustedstring+0x1a/0x30 [ 507.109502] [<ffffffff8139a028>] audit_cb+0x68/0x3f0 [ 507.170027] [<ffffffff8136f088>] common_lsm_audit+0x1b8/0x740 [ 507.239910] [<ffffffff812285c0>] ? alloc_inode+0x50/0x90 [ 507.304593] [<ffffffff812265b6>] ? prepend_path+0xc6/0x2a0 [ 507.371358] [<ffffffff8138161f>] aa_audit+0x5f/0x170 [ 507.431880] [<ffffffff81399fb2>] audit_mount+0x152/0x160 [ 507.496567] [<ffffffff8139a67d>] match_mnt_path_str+0x1dd/0x490 [ 507.568529] [<ffffffff812278b8>] ? dentry_path+0x18/0x70 [ 507.633213] [<ffffffff8139aa0a>] match_mnt+0xda/0x150 [ 507.694776] [<ffffffff8139b280>] aa_bind_mount+0x100/0x180 [ 507.761540] [<ffffffff813903e0>] wrap_apparmor_sb_mount+0x1c0/0x270 [ 507.837664] [<ffffffff81345db7>] security_sb_mount+0x57/0x80 [ 507.906506] [<ffffffff8123029b>] do_mount+0xab/0xde0 [ 507.967032] [<ffffffff811efd74>] ? __kmalloc_track_caller+0x1b4/0x250 [ 508.045236] [<ffffffff810ef581>] ? hrtimer_try_to_cancel+0xd1/0x130 [ 508.121361] [<ffffffff811acc72>] ? memdup_user+0x42/0x70 [ 508.186042] [<ffffffff812312ff>] SyS_mount+0x9f/0x100 [ 508.247607] [<ffffffff81836072>] entry_SYSCALL_64_fastpath+0x16/0x71 [ 508.324765] Code: 89 f8 48 89 e5 f6 82 a0 05 a5 81 20 74 10 48 83 c0 01 0f b6 10 f6 82 a0 05 a5 81 20 75 f0 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 <8 0> 3f 00 55 48 89 e5 74 11 48 89 f8 48 83 c0 01 80 38 00 75 f7 [ 508.564156] RIP [<ffffffff813fe6c0>] strlen+0x0/0x20 [ 508.624889] RSP <ffff880061a73a20> [ 508.666696] CR2: fffffffffffffff3 [ 508.706425] ---[ end trace 9a8196367a1a3630 ]--- ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1651944 Title: Kernel panic when we call pipework to setup virtual network for docker containers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651944/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
