openSUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    openSUSE-SU-2021:3876-1
Rating:             important
References:         #1100416 #1108488 #1129735 #1129898 #1133374 
                    #1136513 #1171420 #1176724 #1177666 #1181158 
                    #1184673 #1184804 #1185377 #1185726 #1185758 
                    #1185973 #1186078 #1186109 #1186390 #1186482 
                    #1186672 #1188062 #1188063 #1188172 #1188563 
                    #1188601 #1188616 #1188838 #1188876 #1188983 
                    #1188985 #1189057 #1189262 #1189291 #1189399 
                    #1189400 #1189706 #1189846 #1189884 #1190023 
                    #1190025 #1190067 #1190115 #1190117 #1190159 
                    #1190276 #1190349 #1190351 #1190479 #1190534 
                    #1190601 #1190717 #1191193 #1191315 #1191317 
                    #1191349 #1191457 #1191628 #1191790 #1191800 
                    #1191888 #1191961 #1192045 #1192267 #1192379 
                    #1192400 #1192775 #1192781 #1192802 SLE-22573 
                    
Cross-References:   CVE-2018-13405 CVE-2018-9517 CVE-2019-3874
                    CVE-2019-3900 CVE-2020-0429 CVE-2020-12770
                    CVE-2020-3702 CVE-2020-4788 CVE-2021-0941
                    CVE-2021-20322 CVE-2021-22543 CVE-2021-31916
                    CVE-2021-33033 CVE-2021-33909 CVE-2021-34556
                    CVE-2021-34981 CVE-2021-3542 CVE-2021-35477
                    CVE-2021-3640 CVE-2021-3653 CVE-2021-3655
                    CVE-2021-3656 CVE-2021-3659 CVE-2021-3679
                    CVE-2021-3715 CVE-2021-37159 CVE-2021-3732
                    CVE-2021-3744 CVE-2021-3752 CVE-2021-3753
                    CVE-2021-37576 CVE-2021-3759 CVE-2021-3760
                    CVE-2021-3764 CVE-2021-3772 CVE-2021-38160
                    CVE-2021-38198 CVE-2021-38204 CVE-2021-40490
                    CVE-2021-41864 CVE-2021-42008 CVE-2021-42252
                    CVE-2021-42739
CVSS scores:
                    CVE-2018-13405 (NVD) : 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2018-13405 (SUSE): 4.4 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
                    CVE-2018-9517 (NVD) : 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2018-9517 (SUSE): 2.5 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
                    CVE-2019-3874 (NVD) : 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2019-3874 (SUSE): 5.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2019-3900 (NVD) : 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
                    CVE-2019-3900 (SUSE): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-0429 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-0429 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-12770 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-12770 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
                    CVE-2020-3702 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-3702 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-4788 (SUSE): 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2021-0941 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-20322 (SUSE): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
                    CVE-2021-22543 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-22543 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-31916 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-31916 (SUSE): 6.8 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33033 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33033 (SUSE): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33909 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33909 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-34556 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2021-34981 (SUSE): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
                    CVE-2021-3542 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-35477 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-3640 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3653 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3655 (SUSE): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
                    CVE-2021-3656 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3659 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3679 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3715 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-37159 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-37159 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3732 (SUSE): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
                    CVE-2021-3744 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3752 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3753 (SUSE): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
                    CVE-2021-37576 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3759 (SUSE): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3760 (SUSE): 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3764 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3772 (SUSE): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-38160 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-38198 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-38204 (SUSE): 4.2 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-40490 (SUSE): 6.1 CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-41864 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-42008 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-42008 (SUSE): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-42252 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-42739 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    openSUSE Leap 15.3
______________________________________________________________________________

   An update that solves 43 vulnerabilities, contains one
   feature and has 26 fixes is now available.

Description:



   The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive
   various security and bugfixes.

   The following security bugs were fixed:

   - Unprivileged BPF has been disabled by default to reduce attack surface
     as too many security issues have happened in the past (jsc#SLE-22573)

     You can reenable via systemctl setting
   /proc/sys/kernel/unprivileged_bpf_disabled to 0.
   (kernel.unprivileged_bpf_disabled = 0)

   - CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible
     out of bounds read due to a use after free. This could lead to local
     escalation of privilege with System execution privileges needed. User
     interaction is not needed for exploitation (bnc#1192045).
   - CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in
     list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module
     in the Linux kernel A bound check failure allowed an attacker with
     special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds
     memory leading to a system crash or a leak of internal kernel
     information. The highest threat from this vulnerability is to system
     availability (bnc#1192781).
   - CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less
     predictive to avoid information leaks about UDP ports in use.
     (bsc#1191790)
   - CVE-2021-34981: Fixed file refcounting in cmtp when cmtp_attach_device
     fails  (bsc#1191961).
   - CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c in the
     Linux kernel calls unregister_netdev without checking for the
     NETREG_REGISTERED state, leading to a use-after-free and a double free
     (bnc#1188601).
   - CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
   - CVE-2021-3655: Missing size validations on inbound SCTP packets may have
     allowed the kernel to read uninitialized memory (bnc#1188563).
   - CVE-2021-33033: The Linux kernel has a use-after-free in cipso_v4_genopt
     in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for
     the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to
     writing an arbitrary value (bnc#1186109 bnc#1186390 bnc#1188876).
   - CVE-2021-3760: Fixed a use-after-free vulnerability with the
     ndev->rf_conn_info object (bsc#1190067).
   - CVE-2021-42739: The firewire subsystem in the Linux kernel has a buffer
     overflow related to drivers/media/firewire/firedtv-avc.c and
     drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled
     bounds checking (bnc#1184673).
   - CVE-2021-3542: Fixed heap buffer overflow in firedtv driver
     (bsc#1186063).
   - CVE-2018-13405: The inode_init_owner function in fs/inode.c in the Linux
     kernel allowed local users to create files with an unintended group
     ownership, in a scenario where a directory is SGID to a certain group
     and is writable by a user who is not a member of that group. Here, the
     non-member can trigger creation of a plain file whose group ownership is
     that group. The intended behavior was that the non-member can trigger
     creation of a directory (but not a plain file) whose group ownership is
     that group. The non-member can escalate privileges by making the plain
     file executable and SGID (bnc#1100416 bnc#1129735).
   - CVE-2021-3715: Fixed a use-after-free in route4_change() in
     net/sched/cls_route.c (bsc#1190349).
   - CVE-2021-34556: An unprivileged BPF program can obtain sensitive
     information from kernel memory via a Speculative Store Bypass
     side-channel attack because the protection mechanism neglects the
     possibility of uninitialized memory locations on the BPF stack
     (bnc#1188983).
   - CVE-2021-35477: An unprivileged BPF program can obtain sensitive
     information from kernel memory via a Speculative Store Bypass
     side-channel attack because a certain preempting store operation did not
     necessarily occur before a store operation that has an
     attacker-controlled value (bnc#1188985).
   - CVE-2021-42252: An issue was discovered in aspeed_lpc_ctrl_mmap in
     drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel Local attackers
     able to access the Aspeed LPC control interface could overwrite memory
     in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1.
     This occurs because a certain comparison uses values that are not memory
     sizes (bnc#1190479).
   - CVE-2021-41864: prealloc_elems_and_freelist in kernel/bpf/stackmap.c in
     the Linux kernel allowed unprivileged users to trigger an eBPF
     multiplication integer overflow with a resultant out-of-bounds write
     (bnc#1191317).
   - CVE-2021-42008: The decode_data function in drivers/net/hamradio/6pack.c
     in the Linux kernel has a slab out-of-bounds write. Input from a process
     that has the CAP_NET_ADMIN capability can lead to root access
     (bnc#1191315).
   - CVE-2021-3759: Unaccounted ipc objects could have lead to breaking memcg
     limits and DoS attacks (bsc#1190115).
   - CVE-2020-3702: Specifically timed and handcrafted traffic can cause
     internal errors in a WLAN device that lead to improper layer 2 Wi-Fi
     encryption with a consequent possibility of information disclosure over
     the air for a discrete set of traffic (bnc#1191193).
   - CVE-2021-3752: Fixed a use after free vulnerability in the bluetooth
     module. (bsc#1190023)
   - CVE-2021-40490: A race condition was discovered in
     ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in
     the Linux kernel (bnc#1190159 bnc#1192775)
   - CVE-2021-3744: Fixed a bug which could allows attackers to cause a
     denial of service. (bsc#1189884)
   - CVE-2021-3764: Fixed a bug which could allows attackers to cause a
     denial of service. (bsc#1190534)
   - CVE-2020-12770: An issue was discovered in the Linux kernel sg_write
     lacks an sg_remove_request call in a certain failure case, aka
     CID-83c6f2390040 (bnc#1171420).
   - CVE-2021-3640: Fixed a Use-After-Free vulnerability in function
     sco_sock_sendmsg() in the bluetooth stack (bsc#1188172).
   - CVE-2019-3900: An infinite loop issue was found in the vhost_net kernel
     module, while handling incoming packets in handle_rx(). It could occur
     if one end sends packets faster than the other end can process them. A
     guest user, maybe remote one, could use this flaw to stall the vhost_net
     kernel thread, resulting in a DoS scenario (bnc#1133374).
   - CVE-2019-3874: The SCTP socket buffer used by a userspace application is
     not accounted by the cgroups subsystem. An attacker can use this flaw to
     cause a denial of service attack. (bnc#1129898).
   - CVE-2018-9517: In pppol2tp_connect, there is possible memory corruption
     due to a use after free. This could lead to local escalation of
     privilege with System execution privileges needed. User interaction is
     not needed for exploitation. (bnc#1108488).
   - CVE-2021-38160: Data corruption or loss could be triggered by an
     untrusted device that supplies a buf->len value exceeding the buffer
     size in drivers/char/virtio_console.c (bsc#1190117)
   - CVE-2021-3753: Fixed race out-of-bounds in virtual terminal handling
     (bsc#1190025).
   - CVE-2021-3732: Mounting overlayfs inside an unprivileged user namespace
     can reveal files (bsc#1189706).
   - CVE-2021-3653: A flaw was found in the KVM's AMD code for supporting SVM
     nested virtualization. The flaw occurs when processing the VMCB (virtual
     machine control block) provided by the L1 guest to spawn/handle a nested
     guest (L2). Due to improper validation of the "int_ctl" field, this
     issue could allow a malicious L1 to enable AVIC support (Advanced
     Virtual Interrupt Controller) for the L2 guest. As a result, the L2
     guest would be allowed to read/write physical pages of the host,
     resulting in a crash of the entire system, leak of sensitive data or
     potential guest-to-host escape. This flaw affects Linux kernel versions
     prior to 5.14-rc7 (bnc#1189399).
   - CVE-2021-3656: Missing validation of the the `virt_ext` VMCB field and
     allows a malicious L1 guest to disable both VMLOAD/VMSAVE intercepts and
     VLS for the L2 guest (bsc#1189400).
   - CVE-2021-38204: drivers/usb/host/max3421-hcd.c allowed physically
     proximate attackers to cause a denial of service (use-after-free and
     panic) by removing a MAX-3421 USB device in certain situations
     (bnc#1189291).
   - CVE-2021-3679: A lack of CPU resource in the tracing module
     functionality was found in the way user uses trace ring buffer in a
     specific way. Only privileged local users (with CAP_SYS_ADMIN
     capability) could use this flaw to starve the resources causing denial
     of service (bnc#1189057).
   - CVE-2020-4788: IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could
     allow a local user to obtain sensitive information from the data in the
     L1 cache under extenuating circumstances. IBM X-Force ID: 189296 (bnc#0
     bnc#1177666 bnc#1181158).
   - CVE-2021-3659: Fixed a NULL pointer dereference in llsec_key_alloc() in
     net/mac802154/llsec.c (bsc#1188876).
   - CVE-2020-0429: In l2tp_session_delete and related functions of
     l2tp_core.c, there is possible memory corruption due to a use after
     free. This could lead to local escalation of privilege with System
     execution privileges needed. User interaction is not needed for
     exploitation (bnc#1176724).
   - CVE-2021-37576: arch/powerpc/kvm/book3s_rtas.c on the powerpc platform
     allowed KVM guest OS users to cause host OS memory corruption via
     rtas_args.nargs, aka CID-f62f3c20647e (bnc#1188838 bnc#1190276).
   - CVE-2021-22543: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in
     KVM can bypass RO checks and can lead to pages being freed while still
     accessible by the VMM and guest. This allowed users with the ability to
     start and control a VM to read/write random pages of memory and can
     result in local privilege escalation (bnc#1186482 bnc#1190276).
   - CVE-2021-33909: fs/seq_file.c did not properly restrict seq buffer
     allocations, leading to an integer overflow, an Out-of-bounds Write, and
     escalation to root by an unprivileged user, aka CID-8cae8cd89f05
     (bnc#1188062 bnc#1188063).

   The following non-security bugs were fixed:

   - Add arch-dependent support markers in supported.conf (bsc#1186672)
   - Add the support for kernel-FLAVOR-optional subpackage (jsc#SLE-11796)
   - bpf: Add kconfig knob for disabling unpriv bpf by default (jsc#SLE-22913)
   - bpf: Disallow unprivileged bpf by default (jsc#SLE-22913).
   - ceph: take snap_empty_lock atomically with snaprealm refcount change
     (bsc#1191888).
   - config: disable unprivileged BPF by default (jsc#SLE-22913)
   - cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode
     (bsc#1185758,bsc#1192400).
   - drm: fix spectre issue in vmw_execbuf_ioctl (bsc#1192802).
   - ftrace: Fix scripts/recordmcount.pl due to new binutils (bsc#1192267).
   - gigaset: fix spectre issue in do_data_b3_req (bsc#1192802).
   - hisax: fix spectre issues (bsc#1192802).
   - hv: mana: adjust mana_select_queue to old API (jsc#SLE-18779,
     bsc#1185726).
   - hv: mana: remove netdev_lockdep_set_classes usage (jsc#SLE-18779,
     bsc#1185726).
   - hv_netvsc: Make netvsc/VF binding check both MAC and serial number
     (jsc#SLE-18779, bsc#1185726).
   - hysdn: fix spectre issue in hycapi_send_message (bsc#1192802).
   - infiniband: fix spectre issue in ib_uverbs_write (bsc#1192802).
   - infiniband: fix spectre issue in ib_uverbs_write (bsc#1192802).
   - ipc: remove memcg accounting for sops objects in do_semtimedop()
     (bsc#1190115).
   - iwlwifi: fix spectre issue in iwl_dbgfs_update_pm (bsc#1192802).
   - kernel-binary.spec: Exctract s390 decompression code (jsc#SLE-17042).
   - kernel-binary.spec: Fix up usrmerge for non-modular kernels.
   - kernel-binary.spec.in: build-id check requires elfutils.
   - kernel-binary.spec.in: Regenerate makefile when not using mkmakefile.
   - kernel-binary.spec: Only use mkmakefile when it exists Linux 5.13 no
     longer had a mkmakefile script
   - kernel-binary.spec: Remove obsolete and wrong comment mkmakefile is
     repleced by echo on newer kernel
   - kernel-docs.spec.in: Build using an utf-8 locale. Sphinx cannot handle
     UTF-8 input in non-UTF-8 locale.
   - media: dvb_ca_en50221: prevent using slot_info for Spectre attacs
     (bsc#1192802).
   - media: dvb_ca_en50221: sanity check slot number from userspace
     (bsc#1192802).
   - media: wl128x: get rid of a potential spectre issue (bsc#1192802).
   - memcg: enable accounting for file lock caches (bsc#1190115).
   - mm/memory.c: do_fault: avoid usage of stale vm_area_struct (bsc#1136513).
   - mpt3sas: fix spectre issues (bsc#1192802).
   - net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)
     (jsc#SLE-18779, bsc#1185726).
   - net: mana: Add support for EQ sharing (jsc#SLE-18779, bsc#1185726).
   - net: mana: Add WARN_ON_ONCE in case of CQE read overflow (jsc#SLE-18779,
     bsc#1185726).
   - net: mana: Fix a memory leak in an error handling path in
     (jsc#SLE-18779, bsc#1185726).
   - net: mana: Fix error handling in mana_create_rxq() (git-fixes,
     bsc#1191800).
   - net: mana: fix PCI_HYPERV dependency (jsc#SLE-18779, bsc#1185726).
   - net: mana: Move NAPI from EQ to CQ (jsc#SLE-18779, bsc#1185726).
   - net: mana: Prefer struct_size over open coded arithmetic (jsc#SLE-18779,
     bsc#1185726).
   - net: mana: remove redundant initialization of variable err
     (jsc#SLE-18779, bsc#1185726).
   - net: mana: Use int to check the return value of mana_gd_poll_cq()
     (jsc#SLE-18779, bsc#1185726).
   - net: mana: Use struct_size() in kzalloc() (jsc#SLE-18779, bsc#1185726).
   - net_sched: cls_route: remove the right filter from hashtable
     (networking-stable-20_03_28).
   - net: sched: sch_teql: fix null-pointer dereference (bsc#1190717).
   - net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd() (bsc#1192802).
   - NFS: Do uncached readdir when we're seeking a cookie in an empty page
     cache (bsc#1191628).
   - objtool: Do not fail on missing symbol table (bsc#1192379).
   - osst: fix spectre issue in osst_verify_frame (bsc#1192802).
   - ovl: check whiteout in ovl_create_over_whiteout() (bsc#1189846).
   - ovl: filter of trusted xattr results in audit (bsc#1189846).
   - ovl: fix dentry leak in ovl_get_redirect (bsc#1189846).
   - ovl: initialize error in ovl_copy_xattr (bsc#1189846).
   - ovl: relax WARN_ON() on rename to self (bsc#1189846).
   - PCI: hv: Use expected affinity when unmasking IRQ (bsc#1185973).
   - Revert "memcg: enable accounting for file lock caches (bsc#1190115)."
     This reverts commit 912b4421a3e9bb9f0ef1aadc64a436666259bd4d. It's
     effectively upstream commit 3754707bcc3e190e5dadc978d172b61e809cb3bd
     applied to kernel-source (to avoid proliferation of patches). Make a
     note in blacklist.conf too.
   - s390/bpf: Fix 64-bit subtraction of the -0x80000000 constant
     (bsc#1190601).
   - s390/bpf: Fix branch shortening during codegen pass (bsc#1190601).
   - s390/bpf: Fix optimizing out zero-extensions (bsc#1190601).
   - s390: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_* (bsc#1190601).
   - s390/bpf: Wrap JIT macro parameter usages in parentheses (bsc#1190601).
   - scripts/git_sort/git_sort.py: add bpf git repo
   - scripts/git_sort/git_sort.py: Update nvme repositories
   - scsi: libfc: Fix array index out of bound exception (bsc#1188616).
   - scsi: lpfc: Fix FLOGI failure due to accessing a freed node
     (bsc#1191349).
   - scsi: lpfc: Fix memory overwrite during FC-GS I/O abort handling
     (bsc#1191349 bsc#1191457).
   - scsi: lpfc: Keep NDLP reference until after freeing the IOCB after ELS
     handling (bsc#1191349 bsc#1191457).
   - scsi: target: avoid using lun_tg_pt_gp after unlock (bsc#1186078).
   - sctp: check asoc peer.asconf_capable before processing asconf
     (bsc#1190351).
   - sctp: fully initialize v4 addr in some functions (bsc#1188563).
   - sysvipc/sem: mitigate semnum index against spectre v1 (bsc#1192802).
   - target: core: Fix sense key for invalid XCOPY request (bsc#1186078).
   - Update config files: Add CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
   - Use /usr/lib/modules as module dir when usermerge is active in the
     target distro.
   - UsrMerge the kernel (boo#1184804)
   - x86/CPU: Add more Icelake model numbers (bsc#1185758,bsc#1192400).
   - xfrm: xfrm_state_mtu should return at least 1280 for ipv6 (bsc#1185377).


Special Instructions and Notes:

   Please reboot the system after installing this update.

Patch Instructions:

   To install this openSUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - openSUSE Leap 15.3:

      zypper in -t patch openSUSE-SLE-15.3-2021-3876=1



Package List:

   - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):

      kernel-default-base-debuginfo-4.12.14-197.102.2
      kernel-vanilla-4.12.14-197.102.2
      kernel-vanilla-base-4.12.14-197.102.2
      kernel-vanilla-base-debuginfo-4.12.14-197.102.2
      kernel-vanilla-debuginfo-4.12.14-197.102.2
      kernel-vanilla-debugsource-4.12.14-197.102.2
      kernel-vanilla-devel-4.12.14-197.102.2
      kernel-vanilla-devel-debuginfo-4.12.14-197.102.2
      kernel-vanilla-livepatch-devel-4.12.14-197.102.2

   - openSUSE Leap 15.3 (ppc64le x86_64):

      kernel-debug-base-4.12.14-197.102.2
      kernel-debug-base-debuginfo-4.12.14-197.102.2

   - openSUSE Leap 15.3 (x86_64):

      kernel-kvmsmall-base-4.12.14-197.102.2
      kernel-kvmsmall-base-debuginfo-4.12.14-197.102.2

   - openSUSE Leap 15.3 (s390x):

      kernel-default-man-4.12.14-197.102.2
      kernel-zfcpdump-man-4.12.14-197.102.2


References:

   https://www.suse.com/security/cve/CVE-2018-13405.html
   https://www.suse.com/security/cve/CVE-2018-9517.html
   https://www.suse.com/security/cve/CVE-2019-3874.html
   https://www.suse.com/security/cve/CVE-2019-3900.html
   https://www.suse.com/security/cve/CVE-2020-0429.html
   https://www.suse.com/security/cve/CVE-2020-12770.html
   https://www.suse.com/security/cve/CVE-2020-3702.html
   https://www.suse.com/security/cve/CVE-2020-4788.html
   https://www.suse.com/security/cve/CVE-2021-0941.html
   https://www.suse.com/security/cve/CVE-2021-20322.html
   https://www.suse.com/security/cve/CVE-2021-22543.html
   https://www.suse.com/security/cve/CVE-2021-31916.html
   https://www.suse.com/security/cve/CVE-2021-33033.html
   https://www.suse.com/security/cve/CVE-2021-33909.html
   https://www.suse.com/security/cve/CVE-2021-34556.html
   https://www.suse.com/security/cve/CVE-2021-34981.html
   https://www.suse.com/security/cve/CVE-2021-3542.html
   https://www.suse.com/security/cve/CVE-2021-35477.html
   https://www.suse.com/security/cve/CVE-2021-3640.html
   https://www.suse.com/security/cve/CVE-2021-3653.html
   https://www.suse.com/security/cve/CVE-2021-3655.html
   https://www.suse.com/security/cve/CVE-2021-3656.html
   https://www.suse.com/security/cve/CVE-2021-3659.html
   https://www.suse.com/security/cve/CVE-2021-3679.html
   https://www.suse.com/security/cve/CVE-2021-3715.html
   https://www.suse.com/security/cve/CVE-2021-37159.html
   https://www.suse.com/security/cve/CVE-2021-3732.html
   https://www.suse.com/security/cve/CVE-2021-3744.html
   https://www.suse.com/security/cve/CVE-2021-3752.html
   https://www.suse.com/security/cve/CVE-2021-3753.html
   https://www.suse.com/security/cve/CVE-2021-37576.html
   https://www.suse.com/security/cve/CVE-2021-3759.html
   https://www.suse.com/security/cve/CVE-2021-3760.html
   https://www.suse.com/security/cve/CVE-2021-3764.html
   https://www.suse.com/security/cve/CVE-2021-3772.html
   https://www.suse.com/security/cve/CVE-2021-38160.html
   https://www.suse.com/security/cve/CVE-2021-38198.html
   https://www.suse.com/security/cve/CVE-2021-38204.html
   https://www.suse.com/security/cve/CVE-2021-40490.html
   https://www.suse.com/security/cve/CVE-2021-41864.html
   https://www.suse.com/security/cve/CVE-2021-42008.html
   https://www.suse.com/security/cve/CVE-2021-42252.html
   https://www.suse.com/security/cve/CVE-2021-42739.html
   https://bugzilla.suse.com/1100416
   https://bugzilla.suse.com/1108488
   https://bugzilla.suse.com/1129735
   https://bugzilla.suse.com/1129898
   https://bugzilla.suse.com/1133374
   https://bugzilla.suse.com/1136513
   https://bugzilla.suse.com/1171420
   https://bugzilla.suse.com/1176724
   https://bugzilla.suse.com/1177666
   https://bugzilla.suse.com/1181158
   https://bugzilla.suse.com/1184673
   https://bugzilla.suse.com/1184804
   https://bugzilla.suse.com/1185377
   https://bugzilla.suse.com/1185726
   https://bugzilla.suse.com/1185758
   https://bugzilla.suse.com/1185973
   https://bugzilla.suse.com/1186078
   https://bugzilla.suse.com/1186109
   https://bugzilla.suse.com/1186390
   https://bugzilla.suse.com/1186482
   https://bugzilla.suse.com/1186672
   https://bugzilla.suse.com/1188062
   https://bugzilla.suse.com/1188063
   https://bugzilla.suse.com/1188172
   https://bugzilla.suse.com/1188563
   https://bugzilla.suse.com/1188601
   https://bugzilla.suse.com/1188616
   https://bugzilla.suse.com/1188838
   https://bugzilla.suse.com/1188876
   https://bugzilla.suse.com/1188983
   https://bugzilla.suse.com/1188985
   https://bugzilla.suse.com/1189057
   https://bugzilla.suse.com/1189262
   https://bugzilla.suse.com/1189291
   https://bugzilla.suse.com/1189399
   https://bugzilla.suse.com/1189400
   https://bugzilla.suse.com/1189706
   https://bugzilla.suse.com/1189846
   https://bugzilla.suse.com/1189884
   https://bugzilla.suse.com/1190023
   https://bugzilla.suse.com/1190025
   https://bugzilla.suse.com/1190067
   https://bugzilla.suse.com/1190115
   https://bugzilla.suse.com/1190117
   https://bugzilla.suse.com/1190159
   https://bugzilla.suse.com/1190276
   https://bugzilla.suse.com/1190349
   https://bugzilla.suse.com/1190351
   https://bugzilla.suse.com/1190479
   https://bugzilla.suse.com/1190534
   https://bugzilla.suse.com/1190601
   https://bugzilla.suse.com/1190717
   https://bugzilla.suse.com/1191193
   https://bugzilla.suse.com/1191315
   https://bugzilla.suse.com/1191317
   https://bugzilla.suse.com/1191349
   https://bugzilla.suse.com/1191457
   https://bugzilla.suse.com/1191628
   https://bugzilla.suse.com/1191790
   https://bugzilla.suse.com/1191800
   https://bugzilla.suse.com/1191888
   https://bugzilla.suse.com/1191961
   https://bugzilla.suse.com/1192045
   https://bugzilla.suse.com/1192267
   https://bugzilla.suse.com/1192379
   https://bugzilla.suse.com/1192400
   https://bugzilla.suse.com/1192775
   https://bugzilla.suse.com/1192781
   https://bugzilla.suse.com/1192802