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Critical 1 exploited CVE USN-8801-1 5 CVEs

linux-azure-fde, linux-azure-fde-7.0 vulnerabilities

Published Sep 22, 2026 · Updated Nov 6, 2026

Summary

It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Character device driver;
- Networking core;
- IPv6 networking;
- Unix domain sockets;
(CVE-2026-52938, CVE-2026-53325, CVE-2026-53361, CVE-2026-53362)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 24.04 LTS 24.04:LTS linux-azure-fde-7.0 7.0.0-1013.13~24.04.1
Ubuntu · 26.04 LTS 26.04:LTS linux-azure-fde 7.0.0-1013.13

Vulnerabilities 5

  • High 7.8
    CVE-2026-53362 Exploited Public exploit

    ipv6: account for fraggap on the paged allocation path

    In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branch is taken (MSG_MORE / NETIF_F_SG / large fraglen), alloclen and pagedlen are com…

    KEV Aug 27, 2026
  • Critical 9.1
    CVE-2025-10263 Public exploit

    Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X…

  • High 7.1
    CVE-2026-53361 Public exploit

    af_unix: Set gc_in_progress to true in unix_gc().

    In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thre…

  • Unscored —

    bpf: Fix NULL pointer dereference in bpf_sk_storage_clone and diag paths

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpf_sk_storage_clone and diag paths bpf_selem_unlink_nofail() sets SDATA(selem)->smap to NULL before removing the selem from the storage hlist. A concurre…

  • Unscored —

    agp/amd64: Fix broken error propagation in agp_amd64_probe()

    In the Linux kernel, the following vulnerability has been resolved: agp/amd64: Fix broken error propagation in agp_amd64_probe() A NULL pointer dereference was observed in the AMD64 AGP driver when running in a virtualized environment (e.g. qemu/kvm) without …

References

  • report
    https://ubuntu.com/security/CVE-2025-10263
  • report
    https://ubuntu.com/security/CVE-2026-52938
  • report
    https://ubuntu.com/security/CVE-2026-53325
  • report
    https://ubuntu.com/security/CVE-2026-53361
  • report
    https://ubuntu.com/security/CVE-2026-53362