openSUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    openSUSE-SU-2017:0547-1
Rating:             important
References:         #1005666 #1015787 #1018100 #1023762 #1023888 
                    #1024081 #1024234 #1024508 #1024938 #1025047 
                    #1025048 #1025049 #1025050 #1025051 #1025053 
                    #1025055 #1025057 #1025058 #1025059 #1025060 
                    #1025061 #1025062 #1025063 #1025064 #1025065 
                    #1025066 #1025067 #1025069 #1025070 #1025071 
                    #1025072 #1025073 #1025074 #1025075 #1025076 
                    #1025077 #1025079 #1025080 #1025081 #1025235 
                    #1026024 #865869 #904489 #927455 #929871 
                    #935087 #935088 #936445 #937609 #937612 #937616 
                    #938550 #938891 #938892 #942512 #942685 #942925 
                    #944001 #945649 #946057 #946902 #949440 #949472 
                    #951615 #951844 #957805 #960300 #963193 #965344 
                    #966278 #966910 #968230 #972844 #972951 #972993 
                    #973855 #975596 #977685 #981038 #981709 #983087 
                    #984779 #985562 #985850 #987192 #989953 #990384 
                    #992712 #993841 #994881 
Cross-References:   CVE-2017-5897 CVE-2017-5970 CVE-2017-5986
                    CVE-2017-6074
Affected Products:
                    openSUSE Leap 42.1
______________________________________________________________________________

   An update that solves four vulnerabilities and has 86 fixes
   is now available.

Description:



   The openSUSE Leap 42.1 kernel was updated to receive various security and
   bugfixes.

   The following security bugs were fixed:

   - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c
     in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures
     in the LISTEN state, which allowed local users to cause a denial of
     service (invalid free) or possibly have unspecified other impact via an
     application that made an IPV6_RECVPKTINFO setsockopt system call
     (bnc#1026024).
   - CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in
     net/sctp/socket.c in the Linux kernel allowed local users to cause a
     denial of service (assertion failure and panic) via a multithreaded
     application that peels off an association in a certain buffer-full state
     (bnc#1025235).
   - CVE-2017-5970: The ipv4_pktinfo_prepare function in
     net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a
     denial of service (system crash) via (1) an application that made
     crafted system calls or possibly (2) IPv4 traffic with invalid IP
     options (bnc#1024938).
   - CVE-2017-5897: A potential remote denial of service within the IPv6 GRE
     protocol was fixed. (bsc#1023762)

   The following non-security bugs were fixed:

   - btrfs: support NFSv2 export (bnc#929871).
   - btrfs: Direct I/O: Fix space accounting (bsc#1025058).
   - btrfs: add RAID 5/6 BTRFS_RBIO_REBUILD_MISSING operation (bsc#1025069).
   - btrfs: bail out if block group has different mixed flag (bsc#1025072).
   - btrfs: be more precise on errors when getting an inode from disk
     (bsc#981038).
   - btrfs: check pending chunks when shrinking fs to avoid corruption
     (bnc#936445).
   - btrfs: check prepare_uptodate_page() error code earlier (bnc#966910).
   - btrfs: do not BUG() during drop snapshot (bsc#1025076).
   - btrfs: do not collect ordered extents when logging that inode exists
     (bsc#977685).
   - btrfs: do not initialize a space info as full to prevent ENOSPC
     (bnc#944001).
   - btrfs: do not leak reloc root nodes on error (bsc#1025074).
   - btrfs: fix block group ->space_info null pointer dereference
     (bnc#935088).
   - btrfs: fix chunk allocation regression leading to transaction abort
     (bnc#938550).
   - btrfs: fix crash on close_ctree() if cleaner starts new transaction
     (bnc#938891).
   - btrfs: fix deadlock between direct IO reads and buffered writes
     (bsc#973855).
   - btrfs: fix deadlock between direct IO write and defrag/readpages
     (bnc#965344).
   - btrfs: fix device replace of a missing RAID 5/6 device (bsc#1025057).
   - btrfs: fix empty symlink after creating symlink and fsync parent dir
     (bsc#977685).
   - btrfs: fix extent accounting for partial direct IO writes (bsc#1025062).
   - btrfs: fix file corruption after cloning inline extents (bnc#942512).
   - btrfs: fix file loss on log replay after renaming a file and fsync
     (bsc#977685).
   - btrfs: fix file read corruption after extent cloning and fsync
     (bnc#946902).
   - btrfs: fix fitrim discarding device area reserved for boot loader's
 use
     (bsc#904489).
   - btrfs: fix for incorrect directory entries after fsync log replay
     (bsc#957805, bsc#977685).
   - btrfs: fix hang when failing to submit bio of directIO (bnc#942685).
   - btrfs: fix incremental send failure caused by balance (bsc#985850).
   - btrfs: fix invalid page accesses in extent_same (dedup) ioctl
     (bnc#968230).
   - btrfs: fix listxattrs not listing all xattrs packed in the same item
     (bsc#1025063).
   - btrfs: fix loading of orphan roots leading to BUG_ON (bsc#972844).
   - btrfs: fix memory corruption on failure to submit bio for direct IO
     (bnc#942685).
   - btrfs: fix memory leak in do_walk_down (bsc#1025075).
   - btrfs: fix memory leak in reading btree blocks (bsc#1025071).
   - btrfs: fix order by which delayed references are run (bnc#949440).
   - btrfs: fix page reading in extent_same ioctl leading to csum errors
     (bnc#968230).
   - btrfs: fix qgroup rescan worker initialization (bsc#1025077).
   - btrfs: fix qgroup sanity tests (bnc#951615).
   - btrfs: fix race between balance and unused block group deletion
     (bnc#938892).
   - btrfs: fix race between fsync and lockless direct IO writes (bsc#977685).
   - btrfs: fix race waiting for qgroup rescan worker (bnc#960300).
   - btrfs: fix regression running delayed references when using qgroups
     (bnc#951615).
   - btrfs: fix regression when running delayed references (bnc#951615).
   - btrfs: fix relocation incorrectly dropping data references (bsc#990384).
   - btrfs: fix shrinking truncate when the no_holes feature is enabled
     (bsc#1025053).
   - btrfs: fix sleeping inside atomic context in qgroup rescan worker
     (bnc#960300).
   - btrfs: fix stale dir entries after removing a link and fsync
     (bnc#942925).
   - btrfs: fix unreplayable log after snapshot delete + parent dir fsync
     (bsc#977685).
   - btrfs: fix warning in backref walking (bnc#966278).
   - btrfs: fix warning of bytes_may_use (bsc#1025065).
   - btrfs: fix wrong check for btrfs_force_chunk_alloc() (bnc#938550).
   - btrfs: handle quota reserve failure properly (bsc#1005666).
   - btrfs: incremental send, check if orphanized dir inode needs delayed
     rename (bsc#1025049).
   - btrfs: incremental send, do not delay directory renames unnecessarily
     (bsc#1025048).
   - btrfs: incremental send, fix clone operations for compressed extents
     (fate#316463).
   - btrfs: incremental send, fix premature rmdir operations (bsc#1025064).
   - btrfs: keep dropped roots in cache until transaction commit (bnc#935087,
     bnc#945649, bnc#951615).
   - btrfs: remove misleading handling of missing device scrub (bsc#1025055).
   - btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock
     (bsc#904489).
   - btrfs: return gracefully from balance if fs tree is corrupted
     (bsc#1025073).
   - btrfs: send, do not bug on inconsistent snapshots (bsc#985850).
   - btrfs: send, fix corner case for reference overwrite detection
     (bsc#1025080).
   - btrfs: send, fix file corruption due to incorrect cloning operations
     (bsc#1025060).
   - btrfs: set UNWRITTEN for prealloc'ed extents in fiemap (bsc#1025047).
   - btrfs: test_check_exists: Fix infinite loop when searching for free
     space entries (bsc#987192).
   - btrfs: use btrfs_get_fs_root in resolve_indirect_ref (bnc#935087,
     bnc#945649).
   - btrfs: use received_uuid of parent during send (bsc#1025051).
   - btrfs: wake up extent state waiters on unlock through clear_extent_bits
     (bsc#1025050).
   - btrfs: Add handler for invalidate page (bsc#963193).
   - btrfs: Add qgroup tracing (bnc#935087, bnc#945649).
   - btrfs: Avoid truncate tailing page if fallocate range does not exceed
     inode size (bsc#1025059).
   - btrfs: Continue write in case of can_not_nocow (bsc#1025070).
   - btrfs: Ensure proper sector alignment for btrfs_free_reserved_data_space
     (bsc#1005666).
   - btrfs: Export and move leaf/subtree qgroup helpers to qgroup.c
     (bsc#983087).
   - btrfs: Fix a data space underflow warning (bsc#985562, bsc#975596,
     bsc#984779).
   - btrfs: Handle unaligned length in extent_same (bsc#937609).
   - btrfs: abort transaction on btrfs_reloc_cow_block() (bsc#1025081).
   - btrfs: add missing discards when unpinning extents with -o discard
     (bsc#904489).
   - btrfs: advertise which crc32c implementation is being used on mount
     (bsc#946057).
   - btrfs: allow dedupe of same inode (bsc#1025067).
   - btrfs: backref: Add special time_seq == (u64)-1 case for
     btrfs_find_all_roots() (bnc#935087, bnc#945649).
   - btrfs: backref: Do not merge refs which are not for same block
     (bnc#935087, bnc#945649).
   - btrfs: btrfs_issue_discard ensure offset/length are aligned to sector
     boundaries (bsc#904489).
   - btrfs: change max_inline default to 2048 (bsc#949472).
   - btrfs: delayed-ref: Cleanup the unneeded functions (bnc#935087,
     bnc#945649).
   - btrfs: delayed-ref: Use list to replace the ref_root in ref_head
     (bnc#935087, bnc#945649).
   - btrfs: delayed-ref: double free in btrfs_add_delayed_tree_ref()
     (bsc#1025079).
   - btrfs: delayed_ref: Add new function to record reserved space into
     delayed ref (bsc#963193).
   - btrfs: delayed_ref: release and free qgroup reserved at proper timing
     (bsc#963193).
   - btrfs: disable defrag of tree roots.
   - btrfs: do not create or leak aliased root while cleaning up orphans
     (bsc#994881).
   - btrfs: do not update mtime/ctime on deduped inodes (bsc#937616).
   - btrfs: explictly delete unused block groups in close_ctree and
     ro-remount (bsc#904489).
   - btrfs: extent-tree: Add new version of btrfs_check_data_free_space and
     btrfs_free_reserved_data_space (bsc#963193).
   - btrfs: extent-tree: Add new version of
     btrfs_delalloc_reserve/release_space (bsc#963193).
   - btrfs: extent-tree: Switch to new check_data_free_space and
     free_reserved_data_space (bsc#963193).
   - btrfs: extent-tree: Switch to new delalloc space reserve and release
     (bsc#963193).
   - btrfs: extent-tree: Use ref_node to replace unneeded parameters in
     __inc_extent_ref() and __free_extent() (bnc#935087, bnc#945649).
   - btrfs: extent_io: Introduce needed structure for recoding set/clear bits
     (bsc#963193).
   - btrfs: extent_io: Introduce new function clear_record_extent_bits()
     (bsc#963193).
   - btrfs: extent_io: Introduce new function set_record_extent_bits
     (bsc#963193).
   - btrfs: fallocate: Add support to accurate qgroup reserve (bsc#963193).
   - btrfs: fix btrfs_compat_ioctl failures on non-compat ioctls
     (bsc#1018100).
   - btrfs: fix clone / extent-same deadlocks (bsc#937612).
   - btrfs: fix deadlock with extent-same and readpage (bsc#937612).
   - btrfs: fix resending received snapshot with parent (bsc#1025061).
   - btrfs: handle non-fatal errors in btrfs_qgroup_inherit() (bsc#972951).
   - btrfs: increment ctx->pos for every emitted or skipped dirent in
     readdir (bsc#981709).
   - btrfs: iterate over unused chunk space in FITRIM (bsc#904489).
   - btrfs: make btrfs_issue_discard return bytes discarded (bsc#904489).
   - btrfs: make file clone aware of fatal signals (bsc#1015787).
   - btrfs: pass unaligned length to btrfs_cmp_data() (bsc#937609).
   - btrfs: properly track when rescan worker is running (bsc#989953).
   - btrfs: provide super_operations->inode_get_dev (bsc#927455).
   - btrfs: qgroup: Add function qgroup_update_counters() (bnc#935087,
     bnc#945649).
   - btrfs: qgroup: Add function qgroup_update_refcnt() (bnc#935087,
     bnc#945649).
   - btrfs: qgroup: Add handler for NOCOW and inline (bsc#963193).
   - btrfs: qgroup: Add new function to record old_roots (bnc#935087,
     bnc#945649).
   - btrfs: qgroup: Add new qgroup calculation function
     btrfs_qgroup_account_extents() (bnc#935087, bnc#945649).
   - btrfs: qgroup: Add new trace point for qgroup data reserve (bsc#963193).
   - btrfs: qgroup: Add the ability to skip given qgroup for old/new_roots
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: Avoid calling btrfs_free_reserved_data_space in
     clear_bit_hook (bsc#963193).
   - btrfs: qgroup: Check if qgroup reserved space leaked (bsc#963193).
   - btrfs: qgroup: Cleanup old inaccurate facilities (bsc#963193).
   - btrfs: qgroup: Cleanup open-coded old/new_refcnt update and read
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: Cleanup the old ref_node-oriented mechanism (bnc#935087,
     bnc#945649).
   - btrfs: qgroup: Do not copy extent buffer to do qgroup rescan
     (bnc#960300).
   - btrfs: qgroup: Fix a race in delayed_ref which leads to abort trans
     (bsc#963193).
   - btrfs: qgroup: Fix a rebase bug which will cause qgroup double free
     (bsc#963193).
   - btrfs: qgroup: Fix a regression in qgroup reserved space (bnc#935087,
     bnc#945649).
   - btrfs: qgroup: Fix qgroup accounting when creating snapshot (bsc#972993).
   - btrfs: qgroup: Fix qgroup data leaking by using subtree tracing
     (bsc#983087).
   - btrfs: qgroup: Introduce btrfs_qgroup_reserve_data function (bsc#963193).
   - btrfs: qgroup: Introduce functions to release/free qgroup reserve data
     space (bsc#963193).
   - btrfs: qgroup: Introduce new functions to reserve/free metadata
     (bsc#963193).
   - btrfs: qgroup: Make snapshot accounting work with new extent-oriented
     qgroup (bnc#935087, bnc#945649).
   - btrfs: qgroup: Record possible quota-related extent for qgroup
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: Switch rescan to new mechanism (bnc#935087, bnc#945649).
   - btrfs: qgroup: Switch self test to extent-oriented qgroup mechanism
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: Switch to new extent-oriented qgroup mechanism
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: Use new metadata reservation (bsc#963193).
   - btrfs: qgroup: account shared subtree during snapshot delete
     (bnc#935087, bnc#945649).
   - btrfs: qgroup: exit the rescan worker during umount (bnc#960300).
   - btrfs: qgroup: fix quota disable during rescan (bnc#960300).
   - btrfs: remove old tree_root dirent processing in btrfs_real_readdir()
     (bsc#981709).
   - btrfs: serialize subvolume mounts with potentially mismatching rw flags
     (bsc#951844).
   - btrfs: skip superblocks during discard (bsc#904489).
   - btrfs: syslog when quota is disabled.
   - btrfs: syslog when quota is enabled
   - btrfs: ulist: Add ulist_del() function (bnc#935087, bnc#945649).
   - btrfs: use the new VFS super_block_dev (bnc#865869).
   - btrfs: waiting on qgroup rescan should not always be interruptible
     (bsc#992712).
   - fs/super.c: add new super block sub devices super_block_dev (bnc#865869).
   - fs/super.c: fix race between freeze_super() and thaw_super()
     (bsc#1025066).
   - kabi: only use sops->get_inode_dev with proper fsflag (bsc#927455).
   - qgroup: Prevent qgroup->reserved from going subzero (bsc#993841).
   - vfs: add super_operations->get_inode_dev (bsc#927455).
   - xfs: do not allow di_size with high bit set (bsc#1024234).
   - xfs: exclude never-released buffers from buftarg I/O accounting
     (bsc#1024508).
   - xfs: fix broken multi-fsb buffer logging (bsc#1024081).
   - xfs: fix up xfs_swap_extent_forks inline extent handling (bsc#1023888).
   - xfs: track and serialize in-flight async buffers against unmount - kABI
     (bsc#1024508).
   - xfs: track and serialize in-flight async buffers against unmount
     (bsc#1024508).


Patch Instructions:

   To install this openSUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - openSUSE Leap 42.1:

      zypper in -t patch openSUSE-2017-287=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - openSUSE Leap 42.1 (i586 x86_64):

      kernel-default-4.1.38-50.1
      kernel-default-base-4.1.38-50.1
      kernel-default-base-debuginfo-4.1.38-50.1
      kernel-default-debuginfo-4.1.38-50.1
      kernel-default-debugsource-4.1.38-50.1
      kernel-default-devel-4.1.38-50.1
      kernel-obs-build-4.1.38-50.2
      kernel-obs-build-debugsource-4.1.38-50.2
      kernel-obs-qa-4.1.38-50.1
      kernel-syms-4.1.38-50.1

   - openSUSE Leap 42.1 (i686 x86_64):

      kernel-debug-4.1.38-50.1
      kernel-debug-base-4.1.38-50.1
      kernel-debug-base-debuginfo-4.1.38-50.1
      kernel-debug-debuginfo-4.1.38-50.1
      kernel-debug-debugsource-4.1.38-50.1
      kernel-debug-devel-4.1.38-50.1
      kernel-debug-devel-debuginfo-4.1.38-50.1
      kernel-ec2-4.1.38-50.1
      kernel-ec2-base-4.1.38-50.1
      kernel-ec2-base-debuginfo-4.1.38-50.1
      kernel-ec2-debuginfo-4.1.38-50.1
      kernel-ec2-debugsource-4.1.38-50.1
      kernel-ec2-devel-4.1.38-50.1
      kernel-pv-4.1.38-50.1
      kernel-pv-base-4.1.38-50.1
      kernel-pv-base-debuginfo-4.1.38-50.1
      kernel-pv-debuginfo-4.1.38-50.1
      kernel-pv-debugsource-4.1.38-50.1
      kernel-pv-devel-4.1.38-50.1
      kernel-vanilla-4.1.38-50.1
      kernel-vanilla-debuginfo-4.1.38-50.1
      kernel-vanilla-debugsource-4.1.38-50.1
      kernel-vanilla-devel-4.1.38-50.1
      kernel-xen-4.1.38-50.1
      kernel-xen-base-4.1.38-50.1
      kernel-xen-base-debuginfo-4.1.38-50.1
      kernel-xen-debuginfo-4.1.38-50.1
      kernel-xen-debugsource-4.1.38-50.1
      kernel-xen-devel-4.1.38-50.1

   - openSUSE Leap 42.1 (noarch):

      kernel-devel-4.1.38-50.1
      kernel-docs-4.1.38-50.3
      kernel-docs-html-4.1.38-50.3
      kernel-docs-pdf-4.1.38-50.3
      kernel-macros-4.1.38-50.1
      kernel-source-4.1.38-50.1
      kernel-source-vanilla-4.1.38-50.1

   - openSUSE Leap 42.1 (i686):

      kernel-pae-4.1.38-50.1
      kernel-pae-base-4.1.38-50.1
      kernel-pae-base-debuginfo-4.1.38-50.1
      kernel-pae-debuginfo-4.1.38-50.1
      kernel-pae-debugsource-4.1.38-50.1
      kernel-pae-devel-4.1.38-50.1


References:

   https://www.suse.com/security/cve/CVE-2017-5897.html
   https://www.suse.com/security/cve/CVE-2017-5970.html
   https://www.suse.com/security/cve/CVE-2017-5986.html
   https://www.suse.com/security/cve/CVE-2017-6074.html
   https://bugzilla.suse.com/1005666
   https://bugzilla.suse.com/1015787
   https://bugzilla.suse.com/1018100
   https://bugzilla.suse.com/1023762
   https://bugzilla.suse.com/1023888
   https://bugzilla.suse.com/1024081
   https://bugzilla.suse.com/1024234
   https://bugzilla.suse.com/1024508
   https://bugzilla.suse.com/1024938
   https://bugzilla.suse.com/1025047
   https://bugzilla.suse.com/1025048
   https://bugzilla.suse.com/1025049
   https://bugzilla.suse.com/1025050
   https://bugzilla.suse.com/1025051
   https://bugzilla.suse.com/1025053
   https://bugzilla.suse.com/1025055
   https://bugzilla.suse.com/1025057
   https://bugzilla.suse.com/1025058
   https://bugzilla.suse.com/1025059
   https://bugzilla.suse.com/1025060
   https://bugzilla.suse.com/1025061
   https://bugzilla.suse.com/1025062
   https://bugzilla.suse.com/1025063
   https://bugzilla.suse.com/1025064
   https://bugzilla.suse.com/1025065
   https://bugzilla.suse.com/1025066
   https://bugzilla.suse.com/1025067
   https://bugzilla.suse.com/1025069
   https://bugzilla.suse.com/1025070
   https://bugzilla.suse.com/1025071
   https://bugzilla.suse.com/1025072
   https://bugzilla.suse.com/1025073
   https://bugzilla.suse.com/1025074
   https://bugzilla.suse.com/1025075
   https://bugzilla.suse.com/1025076
   https://bugzilla.suse.com/1025077
   https://bugzilla.suse.com/1025079
   https://bugzilla.suse.com/1025080
   https://bugzilla.suse.com/1025081
   https://bugzilla.suse.com/1025235
   https://bugzilla.suse.com/1026024
   https://bugzilla.suse.com/865869
   https://bugzilla.suse.com/904489
   https://bugzilla.suse.com/927455
   https://bugzilla.suse.com/929871
   https://bugzilla.suse.com/935087
   https://bugzilla.suse.com/935088
   https://bugzilla.suse.com/936445
   https://bugzilla.suse.com/937609
   https://bugzilla.suse.com/937612
   https://bugzilla.suse.com/937616
   https://bugzilla.suse.com/938550
   https://bugzilla.suse.com/938891
   https://bugzilla.suse.com/938892
   https://bugzilla.suse.com/942512
   https://bugzilla.suse.com/942685
   https://bugzilla.suse.com/942925
   https://bugzilla.suse.com/944001
   https://bugzilla.suse.com/945649
   https://bugzilla.suse.com/946057
   https://bugzilla.suse.com/946902
   https://bugzilla.suse.com/949440
   https://bugzilla.suse.com/949472
   https://bugzilla.suse.com/951615
   https://bugzilla.suse.com/951844
   https://bugzilla.suse.com/957805
   https://bugzilla.suse.com/960300
   https://bugzilla.suse.com/963193
   https://bugzilla.suse.com/965344
   https://bugzilla.suse.com/966278
   https://bugzilla.suse.com/966910
   https://bugzilla.suse.com/968230
   https://bugzilla.suse.com/972844
   https://bugzilla.suse.com/972951
   https://bugzilla.suse.com/972993
   https://bugzilla.suse.com/973855
   https://bugzilla.suse.com/975596
   https://bugzilla.suse.com/977685
   https://bugzilla.suse.com/981038
   https://bugzilla.suse.com/981709
   https://bugzilla.suse.com/983087
   https://bugzilla.suse.com/984779
   https://bugzilla.suse.com/985562
   https://bugzilla.suse.com/985850
   https://bugzilla.suse.com/987192
   https://bugzilla.suse.com/989953
   https://bugzilla.suse.com/990384
   https://bugzilla.suse.com/992712
   https://bugzilla.suse.com/993841
   https://bugzilla.suse.com/994881

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