Release Info

Advisory: CLSA-2025:1754037187

OS: Ubuntu 16.04 ELS

Public date: 2025-08-01 08:33:09.567137

Project: linux

Version: 4.4.0-277.311

Errata link: https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2025-1754037187.html

Changelog

* CVE-url: https://ubuntu.com/security/CVE-2021-47352 - virtio-net: Add validation for used length * CVE-url: https://ubuntu.com/security/CVE-2024-46771 - can: bcm: Remove proc entry when dev is unregistered. * Bionic update: upstream stable patchset 2023-01-20 (LP: #2003596) // CVE- url: https://ubuntu.com/security/CVE-2022-49842 - ASoC: core: Fix use-after-free in snd_soc_exit() * CVE-url: https://ubuntu.com/security/CVE-2021-47336 - smackfs: restrict bytes count in smk_set_cipso() * CVE-url: https://ubuntu.com/security/CVE-2025-21993 - iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() * CVE-url: https://ubuntu.com/security/CVE-2022-49541 - cifs: fix potential double free during failed mount * CVE-url: https://ubuntu.com/security/CVE-2021-47281 - ALSA: timer: Protect the whole snd_timer_close() with open race - ALSA: timer: Follow standard EXPORT_SYMBOL() declarations - ALSA: timer: Limit max instances per timer - ALSA: timer: Fix possible race at assigning a timer instance - ALSA: seq: Fix race of snd_seq_timer_open() * Bionic update: upstream stable patchset 2020-01-14 (LP: #1859712) // CVE- url: https://ubuntu.com/security/CVE-2021-47281 - ALSA: timer: Limit max amount of slave instances * Bionic update: upstream stable patchset 2019-11-13 (LP: #1852492) // CVE- url: https://ubuntu.com/security/CVE-2021-47281 - ALSA: timer: Fix mutex deadlock at releasing card - ALSA: timer: Simplify error path in snd_timer_open()

Update

Update command: apt-get update apt-get --only-upgrade install linux*

Packages list

linux-buildinfo-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-buildinfo-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-cloud-tools-4.4.0-277-tuxcare.els48_4.4.0-277.311_amd64.deb linux-cloud-tools-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-cloud-tools-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-cloud-tools-common_4.4.0-277.311_all.deb linux-doc_4.4.0-277.311_all.deb linux-headers-4.4.0-277-tuxcare.els48_4.4.0-277.311_all.deb linux-headers-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-headers-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-image-unsigned-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-image-unsigned-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-libc-dev_4.4.0-277.311_amd64.deb linux-modules-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-modules-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-modules-extra-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-source-4.4.0_4.4.0-277.311_all.deb linux-tools-4.4.0-277-tuxcare.els48_4.4.0-277.311_amd64.deb linux-tools-4.4.0-277-tuxcare.els48-generic_4.4.0-277.311_amd64.deb linux-tools-4.4.0-277-tuxcare.els48-lowlatency_4.4.0-277.311_amd64.deb linux-tools-common_4.4.0-277.311_all.deb linux-tools-host_4.4.0-277.311_all.deb

CVEs

CVE-2021-47352
CVE-2024-46771
CVE-2021-47281
CVE-2021-47336
CVE-2025-21993
CVE-2022-49842
CVE-2022-49541