Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()

The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which assumes 4-byte alignment that the TCP option stream does not guarantee. Use get_unaligned_be32() instead, which reads the value safely and already returns host byte order, so the htonl() on the comparison constant can be dropped.

This matches the existing get_unaligned_be32() use later in the same function.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()

The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which assumes 4-byte alignment that the TCP option stream does not guarantee. Use get_unaligned_be32() instead, which reads the value safely and already returns host byte order, so the htonl() on the comparison constant can be dropped.

This matches the existing get_unaligned_be32() use later in the same function.

kernel: nvme-pci: fix mempool alloc size kernel: Linux kernel: Denial of Service in RDMA/bnxt_re driver due to race condition during QP destruction kernel: Linux kernel: Use-after-free in xc5000 tuner driver due to race condition kernel: gfs2: Fix unlikely race in gdlm_put_lock kernel: Linux kernel: Denial of Service in QFQ scheduler via child qlen manipulation kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send kernel: gfs2: Fix slab-use-after-free in qd_put kernel: net/sched: act_ct: Only release RCU read lock after ct_ft kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 kernel: gfs2: add some missing log locking kernel: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list kernel: ipvs: clear the svc scheduler ptr early on edit kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() kernel: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() kernel: vxlan: require CAP_NET_ADMIN in the device netns for changelink kernel: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink kernel: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst kernel: KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active kernel: netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_…

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe and 247 more

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which assumes 4-byte alignment that the TCP option stream does not guarantee. Use get_unaligned_be32() instead, which reads the value safely and already returns host byte order, so the htonl() on the comparison constant can be dropped. This matches the existing get_unaligned_be32() use later in the same function.

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Zustand herbeizuführen oder nicht näher spezifizierten Angriff durchzuführen.