kernel: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Fix potential null-ptr-deref in passestablish If getepfromtid fails to lookup non-NULL value for ep, ep is dereferenced later regardless of whether it is empty. This patch adds a simple sanity check to fix the issue...

kernel: Linux kernel: RDMA/core GID entry leak causes Denial of Service

A flaw was found in the Linux kernel's Remote Direct Memory Access RDMA core component. A local user with low privileges could trigger a Global Identifier GID entry reference leak when an Address Handle AH creation request fails. This resource leak could lead to system instability and a Denial of...

kernel: use-after-free in read in vt_do_kdgkb_ioctl

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality...

kernel: RDMA/srpt: Add a check for valid 'mad_agent' pointer

A flaw was addressed in the Linux kernel’s RDMA SRPT SCSI RDMA Protocol Target subsystem. When unregistering a MAD Management Datagram agent, the SRPT module previously performed a non-NULL check on the madagent pointer before invoking ibunregistermadagent. Under rare timing...

edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message

A vulnerability has been identified in the NetworkPkg IP stack of EDK2, the open-source reference implementation of the UEFI specification. This flaw enables an unauthenticated attacker within the same network vicinity to transmit a specifically crafted DHCPv6 message. Exploiting this vulnerabili...

xorg-x11-server: out-of-bounds memory reads/writes in XKB button actions

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved...

xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access

An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation if the server runs with extended privileges, or...

libX11: out-of-bounds memory access in _XkbReadKeySyms()

A vulnerability was found in libX11 due to a boundary condition within the XkbReadKeySyms function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system...

Moderate: Red Hat Security Advisory: libX11 security update

An update for libX11 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

libXpm: out of bounds read in XpmCreateXpmImageFromBuffer()

A vulnerability was found in libXpm due to a boundary condition within the XpmCreateXpmImageFromBuffer function. This flaw allows a local attacker to trigger an out-of-bounds read error and read the contents of memory on the system...

DEBIAN-CVE-2021-47477

In the Linux kernel, the following vulnerability has been resolved: comedi: dt9812: fix DMA buffers on stack USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return ...

UBUNTU-CVE-2021-47481

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Initialize the ODP xarray when creating an ODP MR Normally the zero fill would hide the missing initialization, but an errant set to descsize in regcreate causes a crash: BUG: unable to handle page fault for address:...

UBUNTU-CVE-2021-47477

In the Linux kernel, the following vulnerability has been resolved: comedi: dt9812: fix DMA buffers on stack USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return ...

CVE-2021-47462

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: do not allow illegal MPOLFNUMABALANCING | MPOLLOCAL in mbind syzbot reported access to unitialized memory in mbind 1 Issue came with commit bda420b98505 "numa balancing: migrate on fault among multiple bound nodes"...

CVE-2021-47441

In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: cat /sys/class/thermal/thermalzone2/cdev0/type mlxswfan cat...

DEBIAN-CVE-2021-47441

In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: cat /sys/class/thermal/thermalzone2/cdev0/type mlxswfan cat...

CVE-2021-47441

In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: cat /sys/class/thermal/thermalzone2/cdev0/type mlxswfan cat...

CVE-2021-47434

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix command ring pointer corruption while aborting a command The command ring pointer is located at 6:63 bits of the command ring control register CRCR. All the control bits like command stop, abort are located at 0:3 bits...

UBUNTU-CVE-2021-47441

In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: cat /sys/class/thermal/thermalzone2/cdev0/type mlxswfan cat...

CVE-2021-47462 mm/mempolicy: do not allow illegal MPOL_F_NUMA_BALANCING | MPOL_LOCAL in mbind()

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: do not allow illegal MPOLFNUMABALANCING | MPOLLOCAL in mbind syzbot reported access to unitialized memory in mbind 1 Issue came with commit bda420b98505 "numa balancing: migrate on fault among multiple bound nodes"...