Updated lxc packages fix security vulnerability

CVE-2026-39402, lxc lxc-user-nic insufficient ownership validation allows cross-tenant OVS port deletion...

MGASA-2026-0172 Updated lxc packages fix security vulnerability

CVE-2026-39402, lxc lxc-user-nic insufficient ownership validation allows cross-tenant OVS port deletion...

CVE-2026-49943

CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP ASPATH mask matching implementation in nest/a-path.c. The aspathmatch function uses a fixed-size stack array of 2048 + 1 pmpos entries, while parsepath expands ASPATH segments from a received BGP...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, Fixed by using eswitch mapping in nic mode The cited patch uses the eswitch object mapping pool when in nic mode, where it is not initialized. This results in the trace below 0. The fix involves using either the ni...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fixed a race condition related to the per-CQ variable napiworkdone. After calling napicompletedone, the NAPIFSTATESCHED bit may be cleared, allowing another CPU to start a napi thread and access the per-CQ variable...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fixed an issue where access to the vnicinfo array was out of range. The bnxtqueuestart | stop operation accesses vnicinfo as many times as necessary, which indicates bp-nrvnics. Therefore, it should not access...

CVE-2026-39402

A flaw was found in LXC Linux Containers, specifically within the lxc-user-nic helper. This logic flaw allows an unprivileged attacker, with a valid lxc-usernet policy entry, to delete OpenVSwitch OVS-attached network interfaces owned by other users. In multi-tenant environments using lxc-user-ni...

SUSE CVE-2026-39402

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

EUVD-2026-27820

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netifrunning is tru...

CVE-2026-43260

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netifrunning is tru...

CVE-2026-43260 bnxt_en: Fix RSS context delete logic

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver. Commit 667ac333dbb7 added a check to delete the VNIC in FW only when netifrunning is tru...

CVE-2026-39402

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

CVE-2026-39402

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

CVE-2026-39402 lxc lxc-user-nic insufficient ownership validation allows cross-tenant OVS port deletion

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

CVE-2026-39402 lxc lxc-user-nic insufficient ownership validation allows cross-tenant OVS port deletion

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

CVE-2026-39402

Summary: CVE-2026-39402 affects the LXC user network helper (lxc-user-nic) in multi-tenant setups using Open vSwitch bridges. The delete path in the setuid helper contains a logic flaw in find_line() that can authorize deletion based on a name match even when ownership/type/link fields belong to ...

EUVD-2026-27497

lxc is a Linux container runtime. In the setuid helper lxc-user-nic, the delete path contains a logic flaw in the findline function that allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When lxc-user-nic delete scans its NIC database to authorize a...

LXC 安全漏洞

LXC is an open-source low-level Linux container runtime that has been extensively tested. LXC has a security vulnerability, which stems from a logical flaw in the deletion path of the findline function within the setuid helper program lxc-user-nic. This flaw allows non-privileged users to delete...

PT-2026-36995

Name of the Vulnerable Software and Affected Versions lxc versions prior to 7.0.0 Description A logic flaw in the find line function of the lxc-user-nic setuid helper allows an unprivileged user to delete OVS-attached network interfaces belonging to other users. When scanning the NIC database to...

Astra Linux - уязвимость в qemu

A potential stack overflow issue due to an infinite loop was identified in various NIC emulators of QEMU, in versions up to and including 5.2.0. The issue occurs in the loopback mode of a NIC, where reentrant DMA checks are bypassed. A guest user/process may exploit this flaw to consume CPU cycle...