CVE-2021-47280

In the Linux kernel, the following vulnerability has been resolved: drm: Fix use-after-free read in drmgetunique There is a time-of-check-to-time-of-use error in drmgetunique due to retrieving filepriv-master prior to locking the device's master mutex. An example can be seen in the crash report o...

CVE-2021-47268

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port A pending hrtimer may expire after the kthreadworker of tcpm port is destroyed, see below kernel dump when do module unload, fix it by cancel the 2...

CVE-2021-47261

In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix initializing CQ fragments buffer The function initcqfragbuf can be called to initialize the current CQ fragments buffer cq-buf, or the temporary cq-resizebuf that is filled during CQ resize operation. However, the...

DEBIAN-CVE-2021-47244

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47239

In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xxbind The commit 46a8b29c6306 "net: usb: fix memory leak in smsc75xxbind" fails to clean up the work scheduled in smsc75xxreset- smsc75xxsetmulticast, which leads to use-after-free ...

CVE-2021-47247

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free of encap entry in neigh update handler Function mlx5erepneighupdate wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry...

CVE-2021-47244

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47339

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-core: explicitly clear ioctl input data As seen from a recent syzbot bug report, mistakes in the compat ioctl implementation can lead to uninitialized kernel stack data getting used as input for driver ioctl handlers...

UBUNTU-CVE-2021-47244

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp mptcpgetoptions could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if...

CVE-2021-47328

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix conn use after free during resets If we haven't done a unbind target call we can race where iscsiconnteardown wakes up the EH thread and then frees the conn while those threads are still accessing the conn ehwait...

CVE-2021-47388

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix use-after-free in CCMP/GCMP RX When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca922a0c "mac80211: check...

CVE-2021-47424

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix freeing of uninitialized misc IRQ vector When VSI set up failed in i40eprobe as part of PF switch set up driver was trying to free misc IRQ vectors in i40eclearinterruptscheme and produced a kernel Oops: Trying to free...

CVE-2021-47283

In the Linux kernel, the following vulnerability has been resolved: net:sfc: fix non-freed irq in legacy irq mode SFC driver can be configured via modparam to work using MSI-X, MSI or legacy IRQ interrupts. In the last one, the interrupt was not properly released on module remove. It was not free...

CVE-2021-47410

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix svmmigratefini warning Device manager releases device-specific resources when a driver disconnects from a device, devmmemunmappages and devmreleasememregion calls in svmmigratefini are redundant. It causes below...

UBUNTU-CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

CVE-2021-47430 x86/entry: Clear X86_FEATURE_SMAP when CONFIG_X86_SMAP=n

In the Linux kernel, the following vulnerability has been resolved: x86/entry: Clear X86FEATURESMAP when CONFIGX86SMAP=n Commit 3c73b81a9164 "x86/entry, selftests: Further improve user entry sanity checks" added a warning if AC is set when in the kernel. Commit 662a0221893a3d "x86/entry: Fix AC...

CVE-2021-47429

CVE-2021-47429 – Linux kernel (powerpc/64s): The issue occurs when an unrecoverable MCE is handled in NMI context, where the true NMI handling path could lead to calling an async MCE handler and corrupt IRQ state. The fix introduces separate _async and NMI-specific machine_check_exception handler...

CVE-2021-47421 drm/amdgpu: handle the case of pci_channel_io_frozen only in amdgpu_pci_resume

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: handle the case of pcichanneliofrozen only in amdgpupciresume In current code, when a PCI error state pcichannelionormal is detectd, it will report PCIERSRESULTCANRECOVER status to PCI driver, and PCI driver will...

CVE-2021-47404 HID: betop: fix slab-out-of-bounds Write in betop_probe

In the Linux kernel, the following vulnerability has been resolved: HID: betop: fix slab-out-of-bounds Write in betopprobe Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate...

CVE-2021-47396

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...