CVE-2025-39986

CVE-2025-39986 affects the Linux kernel sun4i_can CAN driver. Root cause: sun4i_can did not populate net_device_ops->ndo_change_mtu(), allowing an attacker to set an invalid MTU (e.g., 9999) via ip link and then use PF_PACKET with ETH_P_CANXL to inject frames. The PF_PACKET path only checks sk...

CVE-2025-39985

In CVE-2025-39985, the Linux kernel’s mcba_usb CAN driver could bypass MTU enforcement via PF_PACKET, allowing a malformed CAN XL frame to reach xmit() and trigger a buffer overflow. The root cause is that mcba_usb does not populate net_device_ops->ndo_change_mtu(), so a user can set an invali...

PT-2025-42260

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's mcba usb CAN driver related to handling PF PACKET sockets and CAN XL frames. Specifically, the driver lacks proper MTU validation through the ndo chan...

PT-2025-42263

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's CAN subsystem, specifically within the etas es58x driver. Sending a PF PACKET can bypass the CAN framework's logic and directly reach the driver's xmi...

kernel: net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

OESA-2024-2028 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb-sk in ipvlanprocessv4,6outbound Raw packet from PFPACKET socket ontop of an IPv6-backed ipvlan device will hit WARNONONCE in skmcloop throug...

kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb-sk in ipvlanprocessv4,6outbound Raw packet from PFPACKET socket ontop of an IPv6-backed ipvlan device will hit WARNONONCE in skmcloop through schdirectxmit path. WARNING: CPU: 2 PID: 0 at net/core/sock.c:775...

kernel: net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

kernel: net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

SUSE CVE-2022-48757

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

SUSE CVE-2024-33621

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb-sk in ipvlanprocessv4,6outbound Raw packet from PFPACKET socket ontop of an IPv6-backed ipvlan device will hit WARNONONCE in skmcloop through schdirectxmit path. WARNING: CPU: 2 PID: 0 at net/core/sock.c:775...

DEBIAN-CVE-2024-33621

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb-sk in ipvlanprocessv4,6outbound Raw packet from PFPACKET socket ontop of an IPv6-backed ipvlan device will hit WARNONONCE in skmcloop through schdirectxmit path. WARNING: CPU: 2 PID: 0 at net/core/sock.c:775...

CVE-2022-48757

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

DEBIAN-CVE-2022-48757

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

CVE-2022-48757 net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

CVE-2022-48757

In the Linux kernel vulnerability CVE-2022-48757, information leakage occurs in /proc/net/ptype: within one net namespace, a packet socket created without binding to a device can expose the new packet_type to other namespaces by reading /proc/net/ptype. The fix adds a net pointer in packet_type t...

CVE-2022-48757 net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

CVE-2022-48757 net: fix information leakage in /proc/net/ptype

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

CVE-2022-48757

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new packettype added by this packet socket by...

Exploit for Double Free in Linux Linux_Kernel

This is a repository containing a proof-of-concept PoC exploit for a vulnerability in a Linux kernel module. The PoC is for CVE-2021-22600, a vulnerability in the Linux kernel's packet socket implementation that allows an attacker to bypass certain security restrictions. The exploit is implemente...