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HistoryAug 09, 2016 - 9:09 p.m.

Security update for the Linux Kernel (important)


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The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

  • CVE-2016-5829: Multiple heap-based buffer overflows in the
    hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux
    kernel allowed local users to cause a denial of service or possibly have
    unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2)
    HIDIOCSUSAGES ioctl call (bnc#986572).
  • CVE-2016-4997: The compat IPT_SO_SET_REPLACE setsockopt implementation
    in the netfilter subsystem in the Linux kernel allowed local users to
    gain privileges or cause a denial of service (memory corruption) by
    leveraging in-container root access to provide a crafted offset value
    that triggers an unintended decrement (bnc#986362).
  • CVE-2016-4470: The key_reject_and_link function in security/keys/key.c
    in the Linux kernel did not ensure that a certain data structure is
    initialized, which allowed local users to cause a denial of service
    (system crash) via vectors involving a crafted keyctl request2 command

The following non-security bugs were fixed:

  • RDMA/cxgb4: Configure 0B MRs to match HW implementation (bsc#909589).
  • RDMA/cxgb4: Do not hang threads forever waiting on WR replies
  • RDMA/cxgb4: Fix locking issue in process_mpa_request (bsc#909589).
  • RDMA/cxgb4: Handle NET_XMIT return codes (bsc#909589).
  • RDMA/cxgb4: Increase epd buff size for debug interface (bsc#909589).
  • RDMA/cxgb4: Limit MRs to less than 8GB for T4/T5 devices (bsc#909589).
  • RDMA/cxgb4: Serialize CQ event upcalls with CQ destruction (bsc#909589).
  • RDMA/cxgb4: Wake up waiters after flushing the qp (bsc#909589).
  • bridge: superfluous skb->nfct check in br_nf_dev_queue_xmit (bsc#982544).
  • iucv: call skb_linearize() when needed (bnc#979915, LTC#141240).
  • kabi: prevent spurious modversion changes after bsc#982544 fix
  • mm/swap.c: flush lru pvecs on compound page arrival (bnc#983721).
  • mm: Fix DIF failures on ext3 filesystems (bsc#971030).
  • net/qlge: Avoids recursive EEH error (bsc#954847).
  • netfilter: bridge: Use __in6_dev_get rather than in6_dev_get in
    br_validate_ipv6 (bsc#982544).
  • netfilter: bridge: do not leak skb in error paths (bsc#982544).
  • netfilter: bridge: forward IPv6 fragmented packets (bsc#982544).
  • qeth: delete napi struct when removing a qeth device (bnc#979915,
  • s390/mm: fix asce_bits handling with dynamic pagetable levels
    (bnc#979915, LTC#141456).
  • s390/pci: fix use after free in dma_init (bnc#979915, LTC#141626).
  • s390: fix test_fp_ctl inline assembly contraints (bnc#979915,
  • sched/cputime: Fix clock_nanosleep()/clock_gettime() inconsistency
  • sched/cputime: Fix cpu_timer_sample_group() double accounting
  • sched: Provide update_curr callbacks for stop/idle scheduling classes
  • x86/mm/pat, /dev/mem: Remove superfluous error message (bsc#974620).