Astra Linux – Vulnerability in Linux, Linux 5.10

A memory flaw after deallocation was discovered in the Linux kernel’s garbage collection for Unix domain socket file handlers. This flaw occurs when users call close and fget simultaneously, potentially triggering a race condition. This flaw allows a local user to crash the system or escalate the...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414541)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414541 advisory. A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close and fget...

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

...

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

...

UBUNTU-CVE-2022-0264

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating som...

UBUNTU-CVE-2021-4083

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close and fget simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on...

PT-2021-8146 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.16.0-rc5+ Description: The vulnerability is related to the veth component of the Linux kernel, which fails to properly check for shared or cloned skbs when GRO is enabled on a veth device and TSO is disabled o...

UBUNTU-CVE-2021-4001

A race condition was found in the Linux kernel's ebpf verifier between bpfmapupdateelem and bpfmapfreeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege capsysadmin or capbpf can modify the frozen mapped address space. This flaw affects kernel...