netdevsim: zero initialize struct iphdr in dummy sk_buff

...

SUSE CVE-2026-52985

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985

A flaw was found in the Linux kernel's netdevsim module. An uninitialized memory vulnerability exists in the handling of struct iphdr within a dummy skbuff due to the use of skbput instead of skbputzero. This could lead to unpredictable system behavior, including crashes Denial of Service, or...

Linux Distros Unpatched Vulnerability : CVE-2026-52985

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being...

EUVD-2026-38853

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985

CVE-2026-52985 concerns the Linux kernel in the netdevsim feature, where the IP header in a dummy skb was not zero-initialized in nsim_dev_trap_skb_build. The issue arises from using skb_put instead of skb_put_zero, leading to uninitialized values in the IP header and potential memory/safety impl...

CVE-2026-52985 netdevsim: zero initialize struct iphdr in dummy sk_buff

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

CVE-2026-52985 netdevsim: zero initialize struct iphdr in dummy sk_buff

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy skbuff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero inste...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpfboundprogs list The netdevsim driver lacks a protection mechanism for operations on the bpfboundprogs list. When the nsimbpfcreateprog performs listaddtail, it is possibl...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: devlink: rate: Unset parent pointer in devlratenodesdestroy The function devlratenodesdestroy is documented to “Unset the parent pointer for all rate objects”. However, it only calls the driver-specific rateleafparentset or...

PT-2026-51879

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netdevsim component where the struct iphdr in a dummy sk buff is not properly initialized. This leads to a KMSAN uninit-value, which occurs when the kernel accesse...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the netdevsim device driver of the Linux kernel, related to the scheduling of events. This issue arises due to improper management of a reference count. This could allow an attacker to create a denial-of-service condition on the system...

Siemens RUGGEDCOM RST2428P Improper Update of Reference Count (CVE-2025-40251)

In the Linux kernel, the following vulnerability has been resolved: devlink: rate: Unset parent pointer in devlratenodesdestroy The function devlratenodesdestroy is documented to Unset parent for all rate objects. However, it was only calling the driver-specific rateleafparentset or...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: devlink: The region-snapshotlock was not held during snapshot flushing. Netdevsim triggers a segmentation fault when reloading, especially when destroying regions with snapshots pending: WARNING: CPU: 1 PID: 787 at...

The vulnerability of the `nsim_dev_trap_fa_cookie_write` function in the `netdevsim` component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the nsimdevtrapfacookiewrite function in the netdevsim component of the Linux operating system is related to the lack of memory release after the effective lifespan has ended. Exploiting this vulnerability can allow an attacker to cause a service failure...

SUSE CVE-2026-23126

In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpfboundprogs list The netdevsim driver lacks a protection mechanism for operations on the bpfboundprogs list. When the nsimbpfcreateprog performs listaddtail, it is possibl...

CVE-2026-23126

In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpfboundprogs list The netdevsim driver lacks a protection mechanism for operations on the bpfboundprogs list. When the nsimbpfcreateprog performs listaddtail, it is possibl...