ALSA-2023:7549

    Dashboard / Vulnerabilities / ALSA-2023:7549

    ALSA-2023:7549

    Published: 28 Nov 2023Last Modified: 4 Feb 2026

    Summary: Important: kernel security and bug fix update

    Details: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163) * kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812) * kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178) * kernel: use-after-free due to race condition occurring in dvb_register_device() (CVE-2022-45884) * kernel: use-after-free due to race condition occurring in dvb_net.c (CVE-2022-45886) * kernel: use-after-free due to race condition occurring in dvb_ca_en50221.c (CVE-2022-45919) * kernel: use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Fix max integer mmu_invalidate_seq hanging vCPU (ALBZ#445) * Random delay receiving packets after bringing up VLAN on top of VF with vf-vlan-pruning enabled (BZ#2240750) * bpf_jit_limit hit again (BZ#2243011) * HPE Edgeline 920t resets during kdump context when ice driver is loaded and when system is booted with intel_iommu=on iommu=pt (BZ#2244625)

    References: https://access.redhat.com/errata/RHSA-2023:7549, https://access.redhat.com/security/cve/CVE-2022-45884, https://access.redhat.com/security/cve/CVE-2022-45886, https://access.redhat.com/security/cve/CVE-2022-45919, https://access.redhat.com/security/cve/CVE-2023-1192, https://access.redhat.com/security/cve/CVE-2023-2163, https://access.redhat.com/security/cve/CVE-2023-3812, https://access.redhat.com/security/cve/CVE-2023-5178, https://bugzilla.redhat.com/2148510, https://bugzilla.redhat.com/2148517, https://bugzilla.redhat.com/2151956, https://bugzilla.redhat.com/2154178, https://bugzilla.redhat.com/2224048, https://bugzilla.redhat.com/2240249, https://bugzilla.redhat.com/2241924, https://errata.almalinux.org/8/ALSA-2023-7549.html

    Affected packages

    Package

    Name: bpftool

    Purl: pkg:rpm/almalinux/bpftool

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.18.0-513.9.1.el8_9

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    ALSA-2023:7549 | CVE-DB