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kernel patching

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Kernel patching on WindowsForum.com covers Linux kernel vulnerabilities that affect mixed Windows-Linux environments. Recent threads detail CVEs in AMDGPU, Btrfs, RDS RDMA, CDC Phonet, rxrpc, HugeTLB, Bluetooth L2CAP, and device-mapper subsystems. Common themes include race conditions, memory leaks, info leaks, and denial-of-service flaws, many lacking CVSS scores at disclosure. The content emphasizes that Windows administrators must track Linux kernel patches due to dependencies like WSL, Azure, containers, and file services. Discussions focus on understanding the operational impact of these bugs and making informed patching decisions before official severity ratings are available.
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    CVE-2026-46204 AMDGPU VCN 4 OOB Read: Patch Before CVSS Score Exists

    CVE-2026-46204 is a newly published Linux kernel vulnerability from kernel.org, disclosed by NVD on May 28, 2026, affecting AMDGPU VCN 4 command parsing in the drm/amdgpu driver and fixed by replacing unsafe indirect-buffer reads with a bounds-checked helper. The bug is not yet scored by NVD...
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    • amdgpu driver kernel patching linux kernel security vcn 4 vulnerability
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-46159: Btrfs Kernel Info Leak via Race in btrfs_ioctl_space_info

    CVE-2026-46159, published by NVD on May 28, 2026 and sourced from kernel.org, is a Linux kernel Btrfs vulnerability in btrfs_ioctl_space_info() where a race condition can cause uninitialized kernel heap memory to be copied to userspace. The bug is not a remote-code-execution headline-grabber...
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    • btrfs vulnerability information leak kernel patching linux kernel
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-46053: Linux RDS RDMA Cleanup Bug and What Windows Admins Should Do

    CVE-2026-46053 is a Linux kernel vulnerability published by NVD on May 27, 2026, covering a Reliable Datagram Sockets RDMA cleanup bug in __rds_rdma_map() where a failed copy of an RDMA memory-region cookie back to user space could trigger incorrect duplicate resource cleanup. The bug is not a...
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    • cve-2026-46053 kernel patching linux kernel rds rdma
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-31623: Linux CDC Phonet skb frags Overflow Fix and USB Trust Lesson

    CVE-2026-31623 is a small Linux kernel fix with an outsized lesson: obscure device drivers still sit on critical trust boundaries. The flaw affects the cdc-phonet USB networking path, where a malicious device pretending to be a CDC Phonet modem could push the receive path past the allowed skb...
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    • kernel patching linux kernel security skb fragments overflow usb device threat
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    • Forum: Security Alerts
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    CVE-2026-31639 Linux rxrpc Key Reference Leak: Why Windows Admins Should Patch

    CVE-2026-31639 is a small-looking Linux kernel fix with the kind of operational footprint that administrators should not ignore: an rxrpc key reference count leak tied to client call teardown. The issue, published on April 24, 2026 and still awaiting full NVD enrichment, centers on a missing...
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    • cve 2026 31639 kernel patching linux kernel wsl and containers
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2026-31575: Linux HugeTLB userfaultfd Race Condition Fix for Stability

    A newly published Linux kernel vulnerability, CVE-2026-31575, highlights how a small unit mismatch in memory-management code can cascade into a race condition with serious stability implications. The flaw sits in the interaction between userfaultfd and HugeTLB handling, where the kernel could...
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    • hugetlb userfaultfd kernel patching linux kernel security windows mixed estate
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    • Forum: Security Alerts
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    CVE-2026-31498: Bluetooth L2CAP ERTM reinit leak & zero pdu infinite loop

    CVE-2026-31498 is a reminder that some of the most consequential kernel bugs are not dramatic buffer overflows or headline-grabbing remote exploits, but state-machine failures and validation gaps buried in long-lived protocol code. In this case, the Linux kernel’s Bluetooth L2CAP layer can be...
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    • bluetooth l2cap cve-2026-31498 kernel patching linux kernel security
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    • Forum: Security Alerts
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    CVE-2024-23851 DM IOCTL Patch: Linux Kernel Robustness Fix

    The Linux kernel received a targeted robustness fix for a device‑mapper ioctl bug tracked as CVE‑2024‑23851: a missing check in copy_params (drivers/md/dm-ioctl.c) could let an ioctl request lead the kernel to try to allocate more than INT_MAX bytes and crash, producing a local denial‑of‑service...
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    • device mapper ioctl vulnerability kernel patching linux kernel
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2024-42228: AMDGPU Kernel DoS Fixed by Upstream VCE Patch

    A critical robustness bug in the Linux kernel’s AMDGPU driver—tracked as CVE-2024-42228—allows a local actor to provoke a kernel-level denial-of-service by using an uninitialized value when the driver calls amdgpu_vce_cs_reloc, and upstream fixes have been merged into stable kernel trees and...
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    • amdgpu kernel vulnerability kernel patching linux kernel denial of service vce parsing patch
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    • Forum: Security Alerts
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    Linux CVE-2024-43846 objagg GPF fix mitigates local DoS

    The Linux kernel received a targeted fix for a subtle but disruptive bug in its object‑aggregation helper: CVE‑2024‑43846 — “lib: objagg: Fix general protection fault”, a defect that can trigger a general protection fault (GPF) and turn routine operations into a local denial‑of‑service condition...
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    • cve 2024 43846 kernel patching linux kernel objagg fix
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    • Forum: Security Alerts
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    CVE-2025-37988: Azure Linux Attestation and Exposure Guide

    Microsoft’s advisory around CVE‑2025‑37988 makes an important distinction: the Azure Linux distribution (formerly CBL‑Mariner) is the only Microsoft product that the company has publicly attested contains the vulnerable upstream kernel code — but that admission is a statement about completed...
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    • azure linux kernel patching linux vulnerabilities vex csaf
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2025-37956 ksmbd: Patch Linux SMB Server and Audit Microsoft Artifacts

    A small, defensive change in the Linux kernel’s in‑kernel SMB server, ksmbd, has been tracked as CVE‑2025‑37956 and fixed upstream — but Microsoft’s public wording that “Azure Linux includes this open‑source library and is therefore potentially affected” is a product‑scoped attestation, not...
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    • azure linux cve 2025 37956 kernel patching ksmbd
    • Replies: 0
    • Forum: Security Alerts
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    Azure Linux Attestations and Per Artifact Verification for CVE-2023-52733

    Microsoft’s brief advisory language — that “Azure Linux includes this open‑source library and is therefore potentially affected” — is accurate for the product it names, but it is not an exclusive statement that no other Microsoft product could include the same vulnerable code; in short: Azure...
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    • attestation azure linux cve management kernel patching
    • Replies: 0
    • Forum: Security Alerts
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