The vulnerabilities of the functions tun_get_user() and tun_xdp_one() in the drivers/net/tun.c file of the Linux kernel’s TUN/TAP virtual network interface driver allow a attacker to cause a service failure.

The vulnerability of the tungetuser and tunxdpone functions in the drivers/net/tun.c file of the Linux virtual network interface TUN/TAP driver leads to a lack of memory release after the effective lifespan of these functions has ended. Exploiting this vulnerability can allow an attacker to cause...

The vulnerability of the tun_xdp_one() function in the drivers/net/tun.c module of the Linux kernel’s network device driver allows a attacker to cause a service failure.

The vulnerability of the tunxdpone function in the drivers/net/tun.c file of the Linux kernel’s network device driver leads to an infinite loop when a condition for exiting the loop is not met. Exploiting this vulnerability could allow an attacker to cause a system failure...

The vulnerability of the tun_xdp_one() function in the drivers/net/tun.c module of the Linux kernel’s network device driver allows a attacker to cause a service failure.

The vulnerability of the tunxdpone function in the drivers/net/tun.c file of the Linux kernel’s network device driver module is related to the copying of buffers without checking the size of the input data. Exploiting this vulnerability could allow an attacker to cause a system failure...

SUSE CVE-2026-46321

In the Linux kernel, the following vulnerability has been resolved: tun: free page on short-frame rejection in tunxdpone tunxdpone returns -EINVAL on a frame shorter than ETHHLEN without freeing the page that vhostnetbuildxdp allocated for it. tunsendmsg discards that -EINVAL and still returns...

UBUNTU-CVE-2026-46321

In the Linux kernel, the following vulnerability has been resolved: tun: free page on short-frame rejection in tunxdpone tunxdpone returns -EINVAL on a frame shorter than ETHHLEN without freeing the page that vhostnetbuildxdp allocated for it. tunsendmsg discards that -EINVAL and still returns...

EUVD-2026-35412

In the Linux kernel, the following vulnerability has been resolved: tun: free page on buildskb failure in tunxdpone When buildskb fails in tunxdpone, the function sets ret to -ENOMEM and jumps to the out label, which returns without freeing the page that vhostnetbuildxdp allocated for the frame. ...

CVE-2026-46322 tun: free page on build_skb failure in tun_xdp_one()

In the Linux kernel, the following vulnerability has been resolved: tun: free page on buildskb failure in tunxdpone When buildskb fails in tunxdpone, the function sets ret to -ENOMEM and jumps to the out label, which returns without freeing the page that vhostnetbuildxdp allocated for the frame. ...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the tunxdpone function failing when buildskb does not release the pages allocated by...

CVE-2026-46322: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tun: free page on buildskb failure in tunxdpone When buildskb fails in tunxdpone, the function sets ret to -ENOMEM and jumps to the out label, which returns without freeing the page that vhostnetbuildxdp allocated for the frame. ...

CVE-2026-46321: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tun: free page on short-frame rejection in tunxdpone tunxdpone returns -EINVAL on a frame shorter than ETHHLEN without freeing the page that vhostnetbuildxdp allocated for it. tunsendmsg discards that -EINVAL and still returns...

CVE-2024-41091: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: tun: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tunxdpone path, which could cause a corrupted skb to be sent downstack. Even before the skb is...