CVE-2026-68301

A flaw was found in the Linux kernel's High-availability Seamless Redundancy HSR networking module. When an HSR slave device is unregistered, the system fails to properly remove synced Virtual Local Area Networks VLANs. This oversight causes the slave device to retain a reference count on these...

UBUNTU-CVE-2026-53353

In the Linux kernel, the following vulnerability has been resolved: hsr: Remove WARNONCE in hsraddrisself. syzbot reported the warning 0 in hsraddrisself, whose assumption is simply wrong. hsr-selfnode is cleared in hsrdelselfnode, which is called from hsrdellink. Since dev-rtnllinkops-dellink is...

The vulnerability of the prp_get_untagged_frame() function in the net/hsr module of the Linux operating system’s High-Speed Reservation (HSR) protocol implementation allows a attacker to disclose protected information.

The vulnerability of the prpgetuntaggedframe function in the net/hsr module of the Linux operating system’s High-Speed Reservation Resource HSR protocol involves an operation that occurs outside of the buffer boundaries. Exploiting this vulnerability could allow an attacker to disclose protected...

CVE-2025-68776 net/hsr: fix NULL pointer dereference in prp_get_untagged_frame()

In the Linux kernel, the following vulnerability has been resolved: net/hsr: fix NULL pointer dereference in prpgetuntaggedframe prpgetuntaggedframe calls pskbcopy to create frame-skbstd but doesn't check if the allocation failed. If pskbcopy returns NULL, skbclone is called with a NULL pointer,...

CVE-2023-52846 hsr: Prevent use after free in prp_create_tagged_frame()

In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prpcreatetaggedframe The prpfillrct function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to f...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from a post-release reuse vulnerability in the hsr module...

CVE-2024-26863

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

PT-2022-7686 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a potential use-after-free in the Linux kernel's hsr module. This occurs when the skb is delivered to netif rx, which may free it, and subsequent dereferencing ...