Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Block layer subsystem;
- ACPI drivers;
- Drivers core;
- ATA over ethernet (AOE) driver;
- TPM device driver;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Mailbox framework;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- NTB driver;
- Virtio pmem driver;
- Parport drivers;
- PCI subsystem;
- SPI subsystem;
- Direct Digital Synthesis drivers;
- TTY drivers;
- USB Device Class drivers;
- USB Dual Role (OTG-ready) Controller drivers;
- USB Serial drivers;
- USB Type-C support driver;
- Framebuffer layer;
- BTRFS file system;
- Ceph distributed file system;
- Ext4 file system;
- F2FS file system;
- File systems infrastructure;
- JFS file system;
- Network file system (NFS) client;
- Network file system (NFS) server daemon;
- NILFS2 file system;
- SMB network file system;
- Network traffic control;
- Network sockets;
- TCP network protocol;
- BPF subsystem;
- Perf events;
- Arbitrary resource management;
- Timer substystem drivers;
- Tracing infrastructure;
- Closures library;
- Memory management;
- Amateur Radio drivers;
- Bluetooth subsystem;
- Ethernet bridge;
- CAN network layer;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- MAC80211 subsystem;
- Netfilter;
- Netlink;
- SCTP protocol;
- TIPC protocol;
- VMware vSockets driver;
- Wireless networking;
- XFRM subsystem;...