A flaw was found in Linux Kernel, where a race in KDGKBSENT and KDSKBSENT leads to use-after-free read in vtdokdgkbioctl

References: https://groups.google.com/g/syzkaller-bugs/c/kZsmxkpq3UI/m/J35PFexWBgAJ?pli=1

A flaw was found in the HDLCPPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the pppcpparsecr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

A flaw was found in the Linux pinctrl system. It is possible to trigger an of bounds read due to a use after free. This could lead to local information disclosure with no additional execution privileges needed.

A memory out of bound read flaw was found in the Linux kernel's ext3/ext4 file system, in the way it accesses directory with broken indexing. This flaw allows a local user to crash the system if such directory exists.

A vulnerability was found in NFSv4.2 in the Linux kernel, where a server fails to apply umask correctly when creating a new object on filesystem without ACL support (for example, ext4 with the "noacl" mount option). This flaw could allow a local attacker with a user privilege to a kernel information leak problem.

References: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

chmdreadheaders in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).