group.of.nepali.translators team mailing list archive

[Launchpad Bug Tracker <1838627@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-161.189

---------------
linux (4.4.0-161.189) xenial; urgency=medium

  * xenial/linux: 4.4.0-161.189 -proposed tracker (LP: #1841544)

  * flock not mediated by 'k' (LP: 1658219)
    - Revert "UBUNTU: SAUCE: apparmor: flock mediation is not being, enforced on
      cache check"

  * Packaging resync (LP: #1786013)
    - [Packaging] resync getabis

linux (4.4.0-160.188) xenial; urgency=medium

  * xenial/linux: 4.4.0-160.188 -proposed tracker (LP: #1840021)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  * EeePC 1005px laptop backlight is off after system boot up (LP: #1837117)
    - platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from
      asus_nb_wmi

  * CVE-2019-10638
    - [Config] CONFIG_TEST_HASH=n
    - siphash: add cryptographically secure PRF
    - inet: switch IP ID generator to siphash

  * Stacked onexec transitions fail when under NO NEW PRIVS restrictions
    (LP: #1839037)
    - SAUCE: apparmor: fix nnp subset check failure, when stacking

  * AppArmor onexec transition causes WARN kernel stack trace (LP: #1838627)
    - SAUCE: apparmor: fix audit failures when performing profile transitions

  * flock not mediated by 'k' (LP: 1658219) // Ubuntu 16.04: read access
    incorrectly implies 'm' rule (LP: 1838090)
    - SAUCE: apparmor: flock mediation is not being, enforced on cache check

  * bcache: bch_allocator_thread(): hung task timeout (LP: #1784665) // Tight
    timeout for bcache removal causes spurious failures (LP: #1796292)
    - SAUCE: bcache: fix deadlock in bcache_allocator

  * bcache: bch_allocator_thread(): hung task timeout (LP: #1784665)
    - bcache: improve bcache_reboot()
    - bcache: add journal statistic
    - bcache: fix high CPU occupancy during journal
    - bcache: fix incorrect sysfs output value of strip size
    - bcache: fix error return value in memory shrink
    - bcache: fix using of loop variable in memory shrink
    - bcache: Fix indentation
    - bcache: Add __printf annotation to __bch_check_keys()
    - bcache: Annotate switch fall-through
    - bcache: Fix kernel-doc warnings
    - bcache: Remove an unused variable
    - bcache: Suppress more warnings about set-but-not-used variables
    - bcache: Reduce the number of sparse complaints about lock imbalances
    - bcache: Move couple of functions to sysfs.c

  * CVE-2019-3900
    - vhost: introduce vhost_vq_avail_empty()
    - vhost_net: tx batching
    - vhost_net: do not stall on zerocopy depletion
    - vhost-net: set packet weight of tx polling to 2 * vq size
    - vhost_net: use packet weight for rx handler, too
    - vhost_net: introduce vhost_exceeds_weight()
    - vhost: introduce vhost_exceeds_weight()
    - vhost_net: fix possible infinite loop
    - vhost: scsi: add weight support

  * Xenial: ZFS deadlock in shrinker path with xattrs (LP: #1839521)
    - SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu28

  * CVE-2019-13648
    - powerpc/tm: Fix oops on sigreturn on systems without TM

  * CVE-2018-20856
    - block: blk_init_allocated_queue() set q->fq as NULL in the fail case

  * CVE-2019-14283
    - floppy: fix out-of-bounds read in copy_buffer

  * CVE-2019-14284
    - floppy: fix div-by-zero in setup_format_params

  * Xenial update: 4.4.186 upstream stable release (LP: #1838467)
    - Input: elantech - enable middle button support on 2 ThinkPads
    - samples, bpf: fix to change the buffer size for read()
    - mac80211: mesh: fix RCU warning
    - dt-bindings: can: mcp251x: add mcp25625 support
    - can: mcp251x: add support for mcp25625
    - Input: imx_keypad - make sure keyboard can always wake up system
    - ARM: davinci: da850-evm: call regulator_has_full_constraints()
    - ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
    - md: fix for divide error in status_resync
    - bnx2x: Check if transceiver implements DDM before access
    - udf: Fix incorrect final NOT_ALLOCATED (hole) extent length
    - x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()
    - x86/tls: Fix possible spectre-v1 in do_get_thread_area()
    - mwifiex: Abort at too short BSS descriptor element
    - fscrypt: don't set policy for a dead directory
    - mwifiex: Don't abort on small, spec-compliant vendor IEs
    - USB: serial: ftdi_sio: add ID for isodebug v1
    - USB: serial: option: add support for GosunCn ME3630 RNDIS mode
    - usb: gadget: ether: Fix race between gether_disconnect and rx_submit
    - usb: renesas_usbhs: add a workaround for a race condition of workqueue
    - staging: comedi: dt282x: fix a null pointer deref on interrupt
    - staging: comedi: amplc_pci230: fix null pointer deref on interrupt
    - carl9170: fix misuse of device driver API
    - VMCI: Fix integer overflow in VMCI handle arrays
    - MIPS: Remove superfluous check for __linux__
    - e1000e: start network tx queue only when link is up
    - perf/core: Fix perf_sample_regs_user() mm check
    - ARM: omap2: remove incorrect __init annotation
    - be2net: fix link failure after ethtool offline test
    - ppp: mppe: Add softdep to arc4
    - sis900: fix TX completion
    - dm verity: use message limit for data block corruption message
    - kvm: x86: avoid warning on repeated KVM_SET_TSS_ADDR
    - ARC: hide unused function unw_hdr_alloc
    - s390: fix stfle zero padding
    - s390/qdio: (re-)initialize tiqdio list entries
    - s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
    - KVM: x86: protect KVM_CREATE_PIT/KVM_CREATE_PIT2 with kvm->lock
    - Linux 4.4.186

 -- Stefan Bader <stefan.bader@xxxxxxxxxxxxx>  Tue, 27 Aug 2019 09:49:19
+0200

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-20856

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-10638

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-13648

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-14283

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-14284

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-3900

-- 
You received this bug notification because you are a member of नेपाली
भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1838627

Title:
  AppArmor onexec transition causes WARN kernel stack trace

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  Fix Released

Bug description:
  microk8s has reported on issue with the Xenial kernel where apparmor
  causes the following kernel stack trace due to an apparmor AA_BUG
  condition being triggered.

  
  [  225.236085] ------------[ cut here ]------------
  [  225.236104] WARNING: CPU: 1 PID: 13726 at /build/linux-aUWTNP/linux-4.4.0/security/apparmor/file.c:136 aa_audit_file+0x16e/0x180()
  [  225.236109] AppArmor WARN aa_audit_file: ((!(&sa)->apparmor_audit_data->request)): 
  [  225.236113] Modules linked in:
  [  225.236118]  btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs veth xt_nat xt_mark xt_comment ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs libcrc32c ctr ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_nat_ipv4 br_netfilter bridge stp llc pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep aufs overlay binfmt_misc drbg ansi_cprng dm_crypt snd_hda_codec_hdmi arc4 eeepc_wmi asus_wmi sparse_keymap nvidia_uvm(POE) mxm_wmi joydev input_leds btusb btrtl btbcm btintel bluetooth snd_usb_audio snd_usbmidi_lib snd_hda_intel snd_hda_codec intel_rapl x86_pkg_temp_thermal snd_hda_core intel_powerclamp snd_hwdep coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_ens1371 snd_ac97_codec gameport ac97_bus
  [  225.236305]  snd_seq_midi aesni_intel snd_pcm snd_seq_midi_event aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd snd_rawmidi snd_seq iwlmvm snd_seq_device serio_raw snd_timer mac80211 snd soundcore iwlwifi cfg80211 mei_me mei shpchp 8250_fintek wmi acpi_pad mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_recent xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack parport_pc iptable_filter ip_tables ppdev x_tables lp parport autofs4 hid_generic usbhid hid nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) i915_bpo psmouse e1000e intel_ips ptp i2c_algo_bit
  [  225.236420]  pps_core drm_kms_helper nvme syscopyarea sysfillrect sysimgblt fb_sys_fops ahci drm libahci video fjes
  [  225.236446] CPU: 1 PID: 13726 Comm: runc:[2:INIT] Tainted: P        W  OE   4.4.0-154-generic #181-Ubuntu
  [  225.236451] Hardware name: System manufacturer System Product Name/PRIME H270-PRO, BIOS 0323 01/04/2017
  [  225.236456]  0000000000000286 fa217f3573a84520 ffff88033ade39d0 ffffffff8140b481
  [  225.236464]  ffff88033ade3a18 ffffffff81d03018 ffff88033ade3a08 ffffffff81085432
  [  225.236477]  ffff88035cb2f000 ffff88033ade3b6c ffff88033bcb8b88 ffff88033ade3d88
  [  225.236484] Call Trace:
  [  225.236498]  [<ffffffff8140b481>] dump_stack+0x63/0x82
  [  225.236509]  [<ffffffff81085432>] warn_slowpath_common+0x82/0xc0
  [  225.236518]  [<ffffffff810854cc>] warn_slowpath_fmt+0x5c/0x80
  [  225.236527]  [<ffffffff81397ebc>] ? label_match.constprop.9+0x3dc/0x6c0
  [  225.236536]  [<ffffffff813a696e>] aa_audit_file+0x16e/0x180
  [  225.236544]  [<ffffffff813982dd>] profile_onexec+0x13d/0x3d0
  [  225.236554]  [<ffffffff8139a33e>] handle_onexec+0x10e/0x10d0
  [  225.236562]  [<ffffffff81242957>] ? vfs_getxattr_alloc+0x67/0x100
  [  225.236571]  [<ffffffff81355395>] ? cap_inode_getsecurity+0x95/0x220
  [  225.236581]  [<ffffffff8135965d>] ? security_inode_getsecurity+0x5d/0x70
  [  225.236589]  [<ffffffff8139b417>] apparmor_bprm_set_creds+0x117/0xa60
  [  225.236596]  [<ffffffff81242a8e>] ? vfs_getxattr+0x9e/0xb0
  [  225.236608]  [<ffffffffc1439712>] ? ovl_getxattr+0x52/0xb0 [overlay]
  [  225.236617]  [<ffffffff8135619d>] ? get_vfs_caps_from_disk+0x7d/0x180
  [  225.236624]  [<ffffffff81356343>] ? cap_bprm_set_creds+0xa3/0x5f0
  [  225.236633]  [<ffffffff81358909>] security_bprm_set_creds+0x39/0x50
  [  225.236642]  [<ffffffff812229d5>] prepare_binprm+0x85/0x190
  [  225.236651]  [<ffffffff812240f4>] do_execveat_common.isra.31+0x4b4/0x770
  [  225.236661]  [<ffffffff8122460a>] SyS_execve+0x3a/0x50
  [  225.236671]  [<ffffffff81863f15>] stub_execve+0x5/0x5
  [  225.236678]  [<ffffffff81863b9b>] ? entry_SYSCALL_64_fastpath+0x22/0xcb
  [  225.236684] ---[ end trace 6b2beaa85ae31c29 ]---

  
  This is caused when the change_onexec api is used and permitted by the profile but the task has the NO_NEW_PRIVS flag set causing the domain transition specified in the change_onexec request to fail.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1838627/+subscriptions