# ALAS2023-2025-876: Security update for 21 packages ALAS2023-2025-876, released February 26, 2025, fixes 37 CVEs across 21 products. None of them is reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/fix/linux/alas2023-2025-876 - Platform: Linux - Released: Feb 26, 2025 - Priority: High (Closes CVE-2025-21795, high severity) - CVEs: 37, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2025-876.html ## Applies to | Product | Release | Fixed in | |---|---|---| | [bpftool](https://patchblox.com/security/data/product/linux/bpftool.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [bpftool-debuginfo](https://patchblox.com/security/data/product/linux/bpftool-debuginfo.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-debuginfo](https://patchblox.com/security/data/product/linux/kernel-debuginfo.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-debuginfo-common-aarch64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-aarch64.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-debuginfo-common-x86_64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-x86-64.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-headers](https://patchblox.com/security/data/product/linux/kernel-headers.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-libbpf](https://patchblox.com/security/data/product/linux/kernel-libbpf.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-libbpf-devel](https://patchblox.com/security/data/product/linux/kernel-libbpf-devel.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-libbpf-static](https://patchblox.com/security/data/product/linux/kernel-libbpf-static.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-livepatch-6.1.129-138.220](https://patchblox.com/security/data/product/linux/kernel-livepatch-6.1.129-138.220.md) | amzn 2023 | 1.0-0.amzn2023 | | [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-modules-extra-common](https://patchblox.com/security/data/product/linux/kernel-modules-extra-common.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-tools-debuginfo](https://patchblox.com/security/data/product/linux/kernel-tools-debuginfo.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [kernel-tools-devel](https://patchblox.com/security/data/product/linux/kernel-tools-devel.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [perf](https://patchblox.com/security/data/product/linux/perf.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [perf-debuginfo](https://patchblox.com/security/data/product/linux/perf-debuginfo.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | | [python3-perf-debuginfo](https://patchblox.com/security/data/product/linux/python3-perf-debuginfo.md) | amzn 2023 | 6.1.129-138.220.amzn2023 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2025-21795](https://patchblox.com/security/data/cve/CVE-2025-21795.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0067 | | | [CVE-2025-21765](https://patchblox.com/security/data/cve/CVE-2025-21765.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0061 | | | [CVE-2025-21704](https://patchblox.com/security/data/cve/CVE-2025-21704.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: usb: cdc-acm: Check control transfer buffer size... | 7.8 | 0.0037 | | | [CVE-2024-57986](https://patchblox.com/security/data/cve/CVE-2024-57986.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0032 | | | [CVE-2025-21703](https://patchblox.com/security/data/cve/CVE-2025-21703.md) | High | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 7.8 | 0.0030 | | | [CVE-2025-40364](https://patchblox.com/security/data/cve/CVE-2025-40364.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided bu... | 7.8 | 0.0028 | | | [CVE-2025-21785](https://patchblox.com/security/data/cve/CVE-2025-21785.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0027 | | | [CVE-2024-57996](https://patchblox.com/security/data/cve/CVE-2024-57996.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: net_sched: sch_sfq: don't allow 1 packet limit... | 7.0 | 0.0027 | | | [CVE-2025-21787](https://patchblox.com/security/data/cve/CVE-2025-21787.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0027 | | | [CVE-2024-57981](https://patchblox.com/security/data/cve/CVE-2024-57981.md) | High | kernel-64k-modules-core: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0027 | | | [CVE-2025-21745](https://patchblox.com/security/data/cve/CVE-2025-21745.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0027 | | | [CVE-2024-58020](https://patchblox.com/security/data/cve/CVE-2024-58020.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0026 | | | [CVE-2024-53166](https://patchblox.com/security/data/cve/CVE-2024-53166.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: d... | 7.8 | 0.0026 | | | [CVE-2025-21790](https://patchblox.com/security/data/cve/CVE-2025-21790.md) | High | kernel-modules-core: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0023 | | | [CVE-2025-21806](https://patchblox.com/security/data/cve/CVE-2025-21806.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0023 | | | [CVE-2024-58083](https://patchblox.com/security/data/cve/CVE-2024-58083.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0022 | | | [CVE-2025-21738](https://patchblox.com/security/data/cve/CVE-2025-21738.md) | High | ata: libata-sff: Ensure that we cannot write outside the allocated buffer | 7.8 | 0.0022 | | | [CVE-2025-21728](https://patchblox.com/security/data/cve/CVE-2025-21728.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0021 | | | [CVE-2024-57993](https://patchblox.com/security/data/cve/CVE-2024-57993.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: c... | 7.8 | 0.0021 | | | [CVE-2025-21719](https://patchblox.com/security/data/cve/CVE-2025-21719.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: ipmr: do not call mr_mfc_uses_dev() for unres en... | 7.1 | 0.0021 | | | [CVE-2025-21826](https://patchblox.com/security/data/cve/CVE-2025-21826.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0020 | | | [CVE-2025-21724](https://patchblox.com/security/data/cve/CVE-2025-21724.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: iommufd/iova_bitmap: Fix shift-out-of-bounds in... | 7.8 | 0.0019 | | | [CVE-2025-21766](https://patchblox.com/security/data/cve/CVE-2025-21766.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0057 | | | [CVE-2025-21707](https://patchblox.com/security/data/cve/CVE-2025-21707.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0054 | | | [CVE-2025-21725](https://patchblox.com/security/data/cve/CVE-2025-21725.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to unset link speed I... | 5.5 | 0.0040 | | | [CVE-2025-21776](https://patchblox.com/security/data/cve/CVE-2025-21776.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: USB: hub: Ignore non-compliant devices with too... | 5.5 | 0.0028 | | | [CVE-2025-21814](https://patchblox.com/security/data/cve/CVE-2025-21814.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0026 | | | [CVE-2024-40945](https://patchblox.com/security/data/cve/CVE-2024-40945.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP6 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0026 | | | [CVE-2024-58017](https://patchblox.com/security/data/cve/CVE-2024-58017.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: printk: Fix signed integer overflow when definin... | 5.5 | 0.0025 | | | [CVE-2025-21779](https://patchblox.com/security/data/cve/CVE-2025-21779.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reject Hyper-V's SEND_IPI hypercalls i... | 5.5 | 0.0025 | | | [CVE-2025-21705](https://patchblox.com/security/data/cve/CVE-2025-21705.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: mptcp: handle fastopen disconnect correctly Syz... | 5.5 | 0.0022 | | | [CVE-2025-21706](https://patchblox.com/security/data/cve/CVE-2025-21706.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0022 | | | [CVE-2024-58016](https://patchblox.com/security/data/cve/CVE-2024-58016.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: safesetid: check size of policy writes syzbot a... | 5.5 | 0.0021 | | | [CVE-2025-21716](https://patchblox.com/security/data/cve/CVE-2025-21716.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix uninit-value in vxlan_vnifilter_dump(... | 5.5 | 0.0021 | | | [CVE-2025-21832](https://patchblox.com/security/data/cve/CVE-2025-21832.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0019 | | | [CVE-2025-21767](https://patchblox.com/security/data/cve/CVE-2025-21767.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: clocksource: Use migrate_disable() to avoid call... | 5.5 | 0.0018 | | | [CVE-2024-58071](https://patchblox.com/security/data/cve/CVE-2024-58071.md) | Routine | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bu... | 5.5 | 0.0018 | | --- Data as of 2026-11-10T01:44:33Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. 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