CVE-2024-36968

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix div-by-zero in l2capleflowctlinit l2capleflowctlinit can cause both div-by-zero and an integer overflow since hdev-lemtu may not fall in the valid range. Move MTU from hcidev to hciconn to validate MTU and...

CVE-2024-36968 Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix div-by-zero in l2capleflowctlinit l2capleflowctlinit can cause both div-by-zero and an integer overflow since hdev-lemtu may not fall in the valid range. Move MTU from hcidev to hciconn to validate MTU and...

CVE-2024-36968

The CVE-2024-36968 entry concerns the Linux kernel Bluetooth L2CAP path. Concrete details across connected docs show: the vulnerability arises in l2cap_le_flowctl_init() where MTU validation could fail, allowing division by zero and an integer overflow when hdev->le_mtu is out of the valid ran...

kernel: ipv6: ensure sane device mtu in tunnels

A flaw was found in the Linux kernel’s IPv6 networking code affecting the handling of IPv6 GRE tunnels. Under certain conditions, an IPv6 tunnel configuration could result in an invalid MTU Maximum Transmission Unit value being written to a network device without sanitization. Because the MTU val...

kernel: out-of-bounds write in qfq_change_class function

An out-of-bounds memory access flaw was found in the Linux kernel’s traffic control QoS subsystem in how a user triggers the qfqchangeclass function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on t...

Linux kernel IPv6 stack denial of service vulnerability

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A security vulnerability exists in the file net/ipv6/addrconf.c in the IPv6 stack of Linux kernel versions prior to 4.0. As the program fails to check if the new 'MTU' value i...