CVE-2021-47475

CVE-2021-47475 is a Linux kernel vulnerability in the comedi vmk80xx USB driver. The issue arises from transfer-buffer size checks: buffers were endpoint-sized and lacked validation, enabling overflows when a malicious device with larger max-packet sizes or unexpected accesses could write past th...

CVE-2021-47475 comedi: vmk80xx: fix transfer-buffer overflows

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix transfer-buffer overflows The driver uses endpoint-sized USB transfer buffers but up until recently had no sanity checks on the sizes. Commit e1f13c879a7c "staging: comedi: check validity of wMaxPacketSize of...

CVE-2021-47475 comedi: vmk80xx: fix transfer-buffer overflows

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix transfer-buffer overflows The driver uses endpoint-sized USB transfer buffers but up until recently had no sanity checks on the sizes. Commit e1f13c879a7c "staging: comedi: check validity of wMaxPacketSize of...

CVE-2021-47474

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doi...

CVE-2021-47474

CVE-2021-47474 affects the Linux kernel driver family for comedi vmk80xx. The vulnerability arises from the driver using endpoint-sized buffers while assuming tx and rx buffers are equal size; a malicious device could overflow the slab-allocated receive buffer during bulk transfers. The issue is ...

CVE-2021-47474 comedi: vmk80xx: fix bulk-buffer overflow

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doi...

CVE-2021-47474 comedi: vmk80xx: fix bulk-buffer overflow

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doi...

CVE-2021-47474: Out-of-bounds Write

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doi...

CVE-2021-47476: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: comedi: niusb6501: fix NULL-deref in command paths The driver uses endpoint-sized USB transfer buffers but had no sanity checks on the sizes. This can lead to zero-size-pointer dereferences or overflowed transfer buffers in...

CVE-2021-47475: Out-of-bounds Write

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix transfer-buffer overflows The driver uses endpoint-sized USB transfer buffers but up until recently had no sanity checks on the sizes. Commit e1f13c879a7c "staging: comedi: check validity of wMaxPacketSize of...

CVE-2021-47477: Out-of-bounds Write

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-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

DEBIAN-CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

UBUNTU-CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364 comedi: Fix memory leak in compat_insnlist()

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364 comedi: Fix memory leak in compat_insnlist()

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compatinsnlist compatinsnlist handles the 32-bit version of the COMEDIINSNLIST ioctl whenwhen CONFIGCOMPAT is enabled. It allocates memory to temporarily hold an array of struct comediinsn converted fro...

CVE-2021-47364

Summary (CVE-2021-47364) The Linux kernel vulnerability in the comedi subsystem affects the 32-bit version of the COMEDI_INSNLIST ioctl when CONFIG_COMPAT is enabled. The issue is a memory leak in compat_insnlist(): memory was allocated to hold a converted array of struct comedi_insn and only fre...