The IPv6 fragmentation implementation in the Linux kernel through 4.11.1 does not consider that the nexthdr field may be associated with an invalid option, which allows local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls.

The IPv6 fragmentation implementation in the Linux kernel through 4.11.1 does not consider that the nexthdr field may be associated with an invalid option, which allows local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls.

Kernel: fs: VFS denial of service Kernel: fs: umount denial of service kernel: ext4 filesystem page fault race condition with fallocate call. kernel: crypto: GPF in lrw_crypt caused by null-deref kernel: Overflowing kernel mount table using shared bind mount kernel: Stack corruption while reading /proc/keys when gcc stack protector is enabled kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit kernel: a BUG() statement can be hit in net/ipv4/tcp_input.c kernel: Use after free in SCSI generic device interface Kernel: kvm: nVMX: uncaught software exceptions in L1 guest leads to DoS kernel: security: The built-in keyrings for security tokens can be joined as a session and then modified by the root user kernel: Memory leaks in xfs_attr_list.c error paths kernel: netlink: double-free in netlink_dump kernel: Use after free in SCSI generic device interface (CVE-2016-9576 regression) kernel: Kernel crash by spawning mcrypt(alg) with incompatible algorithm kernel: l2tp: Race condition in the L2TPv3 IP encapsulation feature kernel: race condition between direct and memory-mapped I/O in fs/xfs/xfs_aops.c Kernel: kvm: use after free in complete_emulated_mmio Kernel: kvm: page reference leakage in handle_vmon kernel: Null pointer dereference in search_keyring kernel: ping socket / AF_LLC connect() sin_family race kernel: S_ISGD is not cleared when setting posix ACLs in tmpfs (CVE-2016-7097 incomplete fix) kernel: ipv4: Invalid IP options could cause skb->dst drop kernel…

Kernel: fs: VFS denial of service Kernel: fs: umount denial of service kernel: ext4 filesystem page fault race condition with fallocate call. kernel: crypto: GPF in lrw_crypt caused by null-deref kernel: Overflowing kernel mount table using shared bind mount kernel: Stack corruption while reading /proc/keys when gcc stack protector is enabled kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit kernel: a BUG() statement can be hit in net/ipv4/tcp_input.c kernel: Use after free in SCSI generic device interface Kernel: kvm: nVMX: uncaught software exceptions in L1 guest leads to DoS kernel: security: The built-in keyrings for security tokens can be joined as a session and then modified by the root user kernel: Memory leaks in xfs_attr_list.c error paths kernel: netlink: double-free in netlink_dump kernel: Use after free in SCSI generic device interface (CVE-2016-9576 regression) kernel: Kernel crash by spawning mcrypt(alg) with incompatible algorithm kernel: l2tp: Race condition in the L2TPv3 IP encapsulation feature kernel: race condition between direct and memory-mapped I/O in fs/xfs/xfs_aops.c Kernel: kvm: use after free in complete_emulated_mmio Kernel: kvm: page reference leakage in handle_vmon kernel: Null pointer dereference in search_keyring kernel: ping socket / AF_LLC connect() sin_family race kernel: S_ISGD is not cleared when setting posix ACLs in tmpfs (CVE-2016-7097 incomplete fix) kernel: ipv4: Invalid IP options could cause skb->dst drop kernel…

Security update for the Linux Kernel

Affected: Ubuntu:14.04:LTS: linux, Ubuntu:14.04:LTS: linux-lts-xenial, Ubuntu:16.04:LTS: linux, Ubuntu:16.04:LTS: linux-aws, Ubuntu:16.04:LTS: linux-gke, Ubuntu:16.04:LTS: linux-hwe, Ubuntu:16.04:LTS: linux-raspi2, Ubuntu:16.04:LTS: linux-snapdragon, Ubuntu:20.04:LTS: linux-azure-fde, Ubuntu:Pro:20.04:LTS: linux-azure-fde-5.15 and 11 more

The IPv6 fragmentation implementation in the Linux kernel through 4.11.1 does not consider that the nexthdr field may be associated with an invalid option, which allows local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls.