{"id":"CLSA-2025-1754037187","summary":"Fix of 7 CVEs","details":"   * CVE-url: https://ubuntu.com/security/CVE-2021-47352\n     - virtio-net: Add validation for used length\n   * CVE-url: https://ubuntu.com/security/CVE-2024-46771\n     - can: bcm: Remove proc entry when dev is unregistered.\n   * Bionic update: upstream stable patchset 2023-01-20 (LP: #2003596) // CVE-\n     url: https://ubuntu.com/security/CVE-2022-49842\n     - ASoC: core: Fix use-after-free in snd_soc_exit()\n   * CVE-url: https://ubuntu.com/security/CVE-2021-47336\n     - smackfs: restrict bytes count in smk_set_cipso()\n   * CVE-url: https://ubuntu.com/security/CVE-2025-21993\n     - iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic()\n   * CVE-url: https://ubuntu.com/security/CVE-2022-49541\n     - cifs: fix potential double free during failed mount\n   * CVE-url: https://ubuntu.com/security/CVE-2021-47281\n     - ALSA: timer: Protect the whole snd_timer_close() with open race\n     - ALSA: timer: Follow standard EXPORT_SYMBOL() declarations\n     - ALSA: timer: Limit max instances per timer\n     - ALSA: timer: Fix possible race at assigning a timer instance\n     - ALSA: seq: Fix race of snd_seq_timer_open()\n   * Bionic update: upstream stable patchset 2020-01-14 (LP: #1859712) // CVE-\n     url: https://ubuntu.com/security/CVE-2021-47281\n     - ALSA: timer: Limit max amount of slave instances\n   * Bionic update: upstream stable patchset 2019-11-13 (LP: #1852492) // CVE-\n     url: https://ubuntu.com/security/CVE-2021-47281\n     - ALSA: timer: Fix mutex deadlock at releasing card\n     - ALSA: timer: Simplify error path in snd_timer_open()","modified":"2026-06-04T10:03:52.040980655Z","published":"2025-08-01T08:33:11Z","upstream":["CVE-2021-47281","CVE-2021-47336","CVE-2021-47352","CVE-2022-49541","CVE-2022-49842","CVE-2024-46771","CVE-2025-21993"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2025-1754037187.html"}],"affected":[{"package":{"name":"linux-buildinfo-4.4.0-277-tuxcare.els48-generic","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-buildinfo-4.4.0-277-tuxcare.els48-generic?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-buildinfo-4.4.0-277-tuxcare.els48-lowlatency","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-buildinfo-4.4.0-277-tuxcare.els48-lowlatency?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-cloud-tools-4.4.0-277-tuxcare.els48","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.4.0-277-tuxcare.els48?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-cloud-tools-4.4.0-277-tuxcare.els48-generic","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.4.0-277-tuxcare.els48-generic?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-cloud-tools-4.4.0-277-tuxcare.els48-lowlatency","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-4.4.0-277-tuxcare.els48-lowlatency?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-cloud-tools-common","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-cloud-tools-common?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-doc","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-doc?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-headers-4.4.0-277-tuxcare.els48","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-headers-4.4.0-277-tuxcare.els48?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-headers-4.4.0-277-tuxcare.els48-generic","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-headers-4.4.0-277-tuxcare.els48-generic?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-headers-4.4.0-277-tuxcare.els48-lowlatency","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-headers-4.4.0-277-tuxcare.els48-lowlatency?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-image-unsigned-4.4.0-277-tuxcare.els48-generic","ecosystem":"TuxCare:Ubuntu:16.04","purl":"pkg:deb/tuxcare/linux-image-unsigned-4.4.0-277-tuxcare.els48-generic?distro=ubuntu-16.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-277.311"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2025-1754037187.json"}},{"package":{"name":"linux-image-unsigned-4.4.0-277-tuxcare.els48-lowlatency","ecosystem":"Tu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