QID 198563

The f2fs file system in the linux kernel did not properly validate metadata in some situations.
The infiniband rdma userspace connection manager implementation in the linux kernel contained a race condition leading to a use-after-free vulnerability.
The ext4 file system implementation in the linux kernel contained an integer overflow when handling metadata inode extents.
The bpf subsystem in the linux kernel did not properly protect against speculative store bypass (ssb) side- channel attacks in some situations.
The bpf subsystem in the linux kernel did not properly protect against speculative store bypass (ssb) side-channel attacks in some situations.
The btrfs file system in the linux kernel did not properly handle removing a non-existent device id.
The qualcomm ipc router protocol implementation in the linux kernel did not properly validate metadata in some situations.
The virtual terminal (vt) device implementation in the linux kernel contained a race condition in its ioctl handling that led to an out-of-bounds read vulnerability.
The linux kernel did not properly account for the memory usage of certain ipc objects.
The aspeed low pin count (lpc) bus controller implementation in the linux kernel did not properly perform boundary checks in some situations, allowing out-of-bounds write access.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

an attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (
Cve-2019-19449).
A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code.
(cve-2020-36385).
An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash) (cve-2021-3428).
A local attacker could possibly use this to expose sensitive information. (
Cve-2021-34556).
A local attacker could possibly use this to expose sensitive information. (
Cve-2021-35477).
An attacker with cap_sys_admin could use this to cause a denial of service. (
Cve-2021-3739).
A local attacker could use this to cause a denial of service (system crash) or expose sensitive information. (
Cve-2021-3743).
A local attacker could possibly use this to expose sensitive information. (
Cve-2021-3753).
A local attacker could use this to cause a denial of service (memory exhaustion) (cve-2021-3759).
A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
In ubuntu, this issue only affected systems running armhf kernels. (
Cve-2021-42252).